Input:
import com.infineon.esim.lpa.core.dtos.ActivationCode;
import com.infineon.esim.lpa.core.dtos.DeviceInformation;
import com.infineon.esim.lpa.core.dtos.EuiccInfo;
import com.infineon.esim.lpa.core.dtos.ProfileDownloadSession;
import com.infineon.esim.lpa.core.dtos.profile.ProfileMetadata;
import com.infineon.esim.lpa.core.dtos.result.local.ClearNotificationsResult;
import com.infineon.esim.lpa.core.dtos.result.local.DeleteResult;
import com.infineon.esim.lpa.core.dtos.result.local.DisableResult;
import com.infineon.esim.lpa.core.dtos.result.local.EnableResult;
import com.infineon.esim.lpa.core.dtos.result.local.SetNicknameResult;
import com.infineon.esim.lpa.core.dtos.result.remote.AuthenticateResult;
import com.infineon.esim.lpa.core.dtos.result.remote.CancelSessionResult;
import com.infineon.esim.lpa.core.dtos.result.remote.DownloadResult;
import com.infineon.esim.lpa.core.dtos.result.remote.HandleNotificationsResult;
import com.infineon.esim.lpa.core.dtos.result.remote.RemoteError;
import com.infineon.esim.lpa.core.es10.Es10Interface;
import com.infineon.esim.lpa.core.es10.EuiccChannel;
import com.infineon.esim.lpa.core.es9plus.Es9PlusInterface;
import com.infineon.esim.lpa.core.worker.local.ClearAllNotificationsWorker;
import com.infineon.esim.lpa.core.worker.local.DeleteProfileWorker;
import com.infineon.esim.lpa.core.worker.local.DisableProfileWorker;
import com.infineon.esim.lpa.core.worker.local.EnableProfileWorker;
import com.infineon.esim.lpa.core.worker.local.GetEidWorker;
import com.infineon.esim.lpa.core.worker.local.GetEuiccInfo2Worker;
import com.infineon.esim.lpa.core.worker.local.ListProfilesWorker;
import com.infineon.esim.lpa.core.worker.local.SetNicknameWorker;
import com.infineon.esim.lpa.core.worker.remote.AuthenticateWorker;
import com.infineon.esim.lpa.core.worker.remote.CancelSessionWorker;
import com.infineon.esim.lpa.core.worker.remote.DownloadProfileWorker;
import com.infineon.esim.lpa.core.worker.remote.HandleNotificationsWorker;
import com.infineon.esim.util.Log;
import java.util.List;

Context:
core/src/main/java/com/infineon/esim/lpa/core/LocalProfileAssistantCoreImpl.java
/*
 * THE SOURCE CODE AND ITS RELATED DOCUMENTATION IS PROVIDED "AS IS". INFINEON
 * TECHNOLOGIES MAKES NO OTHER WARRANTY OF ANY KIND,WHETHER EXPRESS,IMPLIED OR,
 * STATUTORY AND DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY,
 * SATISFACTORY QUALITY, NON INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * THE SOURCE CODE AND DOCUMENTATION MAY INCLUDE ERRORS. INFINEON TECHNOLOGIES
 * RESERVES THE RIGHT TO INCORPORATE MODIFICATIONS TO THE SOURCE CODE IN LATER
 * REVISIONS OF IT, AND TO MAKE IMPROVEMENTS OR CHANGES IN THE DOCUMENTATION OR
 * THE PRODUCTS OR TECHNOLOGIES DESCRIBED THEREIN AT ANY TIME.
 *
 * INFINEON TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT OR
 * CONSEQUENTIAL DAMAGE OR LIABILITY ARISING FROM YOUR USE OF THE SOURCE CODE OR
 * ANY DOCUMENTATION, INCLUDING BUT NOT LIMITED TO, LOST REVENUES, DATA OR
 * PROFITS, DAMAGES OF ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL NATURE, PUNITIVE
 * DAMAGES, LOSS OF PROPERTY OR LOSS OF PROFITS ARISING OUT OF OR IN CONNECTION
 * WITH THIS AGREEMENT, OR BEING UNUSABLE, EVEN IF ADVISED OF THE POSSIBILITY OR
 * PROBABILITY OF SUCH DAMAGES AND WHETHER A CLAIM FOR SUCH DAMAGE IS BASED UPON
 * WARRANTY, CONTRACT, TORT, NEGLIGENCE OR OTHERWISE.
 *
 * (C)Copyright INFINEON TECHNOLOGIES All rights reserved
 */

package com.infineon.esim.lpa.core;

public class LocalProfileAssistantCoreImpl implements LocalProfileAssistantCore {
    private static final String TAG = LocalProfileAssistantCoreImpl.class.getName();

    private ProfileDownloadSession profileDownloadSession = null;

    private Es10Interface es10Interface;
    private Es9PlusInterface es9PlusInterface;

    public LocalProfileAssistantCoreImpl() {
    }

    public void setEuiccChannel(EuiccChannel euiccChannel) {
        this.es10Interface = new Es10Interface(euiccChannel);
    }

    public void enableEs9PlusInterface() {
        this.es9PlusInterface = new Es9PlusInterface();
    }

    public void disableEs9PlusInterface() {
        this.es9PlusInterface = null;
    }

    // Local functions

    @Override
    public EnableResult enableProfile(String iccid, boolean refreshFlag) throws Exception {
        int result = new EnableProfileWorker(es10Interface).enable(iccid, refreshFlag);

        return new EnableResult(result);
    }

    @Override
    public DisableResult disableProfile(String iccid) throws Exception {
        int result = new DisableProfileWorker(es10Interface).disable(iccid);

        return new DisableResult(result);
    }

    @Override
    public DeleteResult deleteProfile(String iccid) throws Exception {
        int result = new DeleteProfileWorker(es10Interface).delete(iccid);

        return new DeleteResult(result);
    }

    @Override
    public SetNicknameResult setNickname(String iccid, String nicknameNew) throws Exception {
        int result = new SetNicknameWorker(es10Interface).setNickname(iccid,nicknameNew);

        return new SetNicknameResult(result);
    }

    @Override
    public List<ProfileMetadata> getProfiles() throws Exception {
        return new ListProfilesWorker(es10Interface).listProfiles();
    }

    @Override
    public String getEID() throws Exception {
        return new GetEidWorker(es10Interface).getEid();
    }

    @Override
    public EuiccInfo getEuiccInfo2() throws Exception {
        return new GetEuiccInfo2Worker(es10Interface).getEuiccInfo2();
    }

    // Remote functions

    @Override
    public AuthenticateResult authenticate(ActivationCode activationCode) throws Exception {
        if(isEs9PlusInterfaceUnavailable()) {
            Log.error(TAG, "ES9+ interface is not available! Enable internet connection?");
            throw new Exception("ES9+ interface is not available! Enable internet connection?");
        }

        profileDownloadSession = new ProfileDownloadSession(activationCode, DeviceInformation.getDeviceInformation(), es10Interface, es9PlusInterface);

        boolean success = new AuthenticateWorker(profileDownloadSession).authenticate();

        if(success) {
            ProfileMetadata profileMetadata =  new ProfileMetadata(profileDownloadSession.getProfileMetaData());
            return new AuthenticateResult(profileDownloadSession.isCcRequired(), profileMetadata);
        } else {
            return new AuthenticateResult(getLastEs9PlusError());
        }
    }

    @Override
    public DownloadResult downloadProfile(String confirmationCode) throws Exception {
        if(isEs9PlusInterfaceUnavailable()) {
            Log.error(TAG, "ES9+ interface is not available! Enable internet connection?");
            throw new Exception("ES9+ interface is not available! Enable internet connection?");
        }

        boolean success = new DownloadProfileWorker(profileDownloadSession).downloadProfile(confirmationCode);

        if(success) {
            return new DownloadResult();
        } else {

core/src/main/java/com/infineon/esim/lpa/core/dtos/EuiccInfo.java
public class EuiccInfo {
    private static final String TAG = EuiccInfo.class.getName();

    private String eid;
    private final String profileVersion;
    private final String svn;
    private final String euiccFirmwareVer;
    private final String globalplatformVersion;
    private final String sasAcreditationNumber;
    private final List<String> pkiIdsForSign;
    private final List<String> pkiIdsForVerify;
    private final PprIds forbiddenProfilePolicyRules;
    private final BerOctetString extCardResource;

    public EuiccInfo(EUICCInfo2 euiccInfo2) {
        this(null, euiccInfo2);
    }

    public EuiccInfo(String eid, EUICCInfo2 euiccInfo2) {
        this.eid = eid;
        this.profileVersion = versionTypeToString(euiccInfo2.getProfileVersion());
        this.svn = versionTypeToString(euiccInfo2.getSvn());
        this.euiccFirmwareVer = versionTypeToString(euiccInfo2.getEuiccFirmwareVer());
        this.globalplatformVersion = versionTypeToString(euiccInfo2.getGlobalplatformVersion());

        this.sasAcreditationNumber = euiccInfo2.getSasAcreditationNumber().toString();

        this.pkiIdsForSign = euiccPkiIdList(euiccInfo2.getEuiccCiPKIdListForSigning());
        this.pkiIdsForVerify = euiccPkiIdList(euiccInfo2.getEuiccCiPKIdListForVerification());

        this.forbiddenProfilePolicyRules = euiccInfo2.getForbiddenProfilePolicyRules();

        this.extCardResource = euiccInfo2.getExtCardResource();
    }

    public void setEid(String eid) {
        this.eid = eid;
    }

    public String getEid() {
        return eid;
    }

    public String getProfileVersion() {
        return profileVersion;
    }

    public String getSvn() {
        return svn;
    }

    public String getEuiccFirmwareVer() {
        return euiccFirmwareVer;
    }

    public String getGlobalplatformVersion() {
        return globalplatformVersion;
    }

    public String getSasAcreditationNumber() {
        return sasAcreditationNumber;
    }

    public List<String> getPkiIdsForSign() {
        return pkiIdsForSign;
    }

    public List<String> getPkiIdsForVerify() {
        return pkiIdsForVerify;
    }

    public String getPkiIdsForSignAsString(){
        StringBuilder sb = new StringBuilder();
        if (!pkiIdsForSign.isEmpty()) {
            for(String pkiId : pkiIdsForSign) {
                sb.append(pkiId);
                sb.append("\n");
            }
        } else {
            return "Not Found";
        }
        return sb.subSequence(0, sb.length() - 1).toString();
    }

    public String getPkiIdsForVerifyAsString(){
        StringBuilder sb = new StringBuilder();
        if (!pkiIdsForVerify.isEmpty()) {
            for(String pkiId : pkiIdsForVerify) {
                sb.append(pkiId);
                sb.append("\n");
            }
        } else {
            return "Not Found";
        }
        return sb.subSequence(0, sb.length() - 1).toString();
    }

    public String getForbiddenProfilePolicyRules() {
        return forbiddenProfilePolicyRules.toString();
    }

    public String getExtCardResource() {
        return extCardResource.toString();
    }

    private static String versionTypeToString(VersionType versionType) {
        if(versionType != null) {
            String vts = versionType.toString();
            Log.debug(TAG, "Raw version number: \"" + vts + "\"." );
            if (vts.length() == 6) {
                int major = Integer.parseInt(vts.substring(0, 2));
                int middle = Integer.parseInt(vts.substring(2, 4));
                int minor = Integer.parseInt(vts.substring(4, 6));

                return major + "." + middle + "." + minor;
            }
        }

        return "N/A";
    }

    private static List<String> euiccPkiIdList(EUICCInfo2.EuiccCiPKIdListForSigning pkiIdListIn) {
        List<String> pkiIdList = new ArrayList<>();

        for(SubjectKeyIdentifier ski : pkiIdListIn.getSubjectKeyIdentifier()) {
            pkiIdList.add(ski.toString());
        }

        return pkiIdList;
    }

    private static List<String> euiccPkiIdList(EUICCInfo2.EuiccCiPKIdListForVerification pkiIdListIn) {
        List<String> pkiIdList = new ArrayList<>();

        for(SubjectKeyIdentifier ski : pkiIdListIn.getSubjectKeyIdentifier()) {
            pkiIdList.add(ski.toString());
        }

        return pkiIdList;
    }

}

core/src/main/java/com/infineon/esim/lpa/core/es9plus/Es9PlusInterface.java
public class Es9PlusInterface {
    private static final String TAG = Es9PlusInterface.class.getName();

    private static final Gson GS = new GsonBuilder().disableHtmlEscaping().create();

    private static final String INITIATE_AUTHENTICATION_PATH = "/gsma/rsp2/es9plus/initiateAuthentication";
    private static final String AUTHENTICATE_CLIENT_PATH = "/gsma/rsp2/es9plus/authenticateClient";
    private static final String GET_BOUND_PROFILE_PACKAGE_PATH = "/gsma/rsp2/es9plus/getBoundProfilePackage";
    private static final String HANDLE_NOTIFICATION_PATH = "/gsma/rsp2/es9plus/handleNotification";
    private static final String CANCEL_SESSION_PATH = "/gsma/rsp2/es9plus/cancelSession";

    private final HttpsClient httpsClient;

    private String smdpAddress;

    private FunctionExecutionStatus lastFunctionExecutionStatus = null;

    public Es9PlusInterface() {
        this.httpsClient = new HttpsClient();
    }

    public void setSmdpAddress(String smdpAddress) {
        this.smdpAddress = smdpAddress;
    }

    public InitiateAuthenticationResponse initiateAuthentication(InitiateAuthenticationRequest initiateAuthenticationRequest) throws Exception {
        ensureSmdpAddressIsAvailable();

        Log.debug(TAG, "ES9+ -> : " + initiateAuthenticationRequest);

        InitiateAuthenticationReq initiateAuthenticationReq = new InitiateAuthenticationReq();
        initiateAuthenticationReq.setRequest(initiateAuthenticationRequest);

        HttpResponse httpResponse = httpsClient.sendRequest(GS.toJson(initiateAuthenticationReq), smdpAddress, INITIATE_AUTHENTICATION_PATH, true);
        checkHttpStatusCode("InitiateAuthentication", httpResponse, HttpsURLConnection.HTTP_OK);

        InitiateAuthenticationResp initiateAuthenticationResp = GS.fromJson(httpResponse.getContent(), InitiateAuthenticationResp.class);
        checkFunctionExecutionStatus("InitiateAuthentication", initiateAuthenticationResp);

        InitiateAuthenticationResponse initiateAuthenticationResponse = initiateAuthenticationResp.getResponse();
        Log.debug(TAG, "ES9+ <- : " + initiateAuthenticationResponse);

        return initiateAuthenticationResponse;
    }

    public AuthenticateClientResponseEs9 authenticateClient(AuthenticateClientRequest authenticateClientRequest) throws Exception {
        ensureSmdpAddressIsAvailable();

        Log.debug(TAG, "ES9+ -> : " + authenticateClientRequest);

        AuthenticateClientReq authenticateClientReq = new AuthenticateClientReq();
        authenticateClientReq.setRequest(authenticateClientRequest);

        HttpResponse httpResponse = httpsClient.sendRequest(GS.toJson(authenticateClientReq), smdpAddress, AUTHENTICATE_CLIENT_PATH, true);
        checkHttpStatusCode("AuthenticateClient", httpResponse, HttpsURLConnection.HTTP_OK);

        AuthenticateClientResp authenticateClientResp = GS.fromJson(httpResponse.getContent(), AuthenticateClientResp.class);
        checkFunctionExecutionStatus("AuthenticateClient", authenticateClientResp);

        AuthenticateClientResponseEs9 authenticateClientResponseEs9 = authenticateClientResp.getResponse();
        Log.debug(TAG, "ES9+ <- : " + authenticateClientResponseEs9);

        return authenticateClientResponseEs9;
    }

    public GetBoundProfilePackageResponse getBoundProfilePackage(GetBoundProfilePackageRequest getBoundProfilePackageRequest) throws Exception {
        ensureSmdpAddressIsAvailable();

        Log.debug(TAG, "ES9+ -> : " + getBoundProfilePackageRequest);

        GetBoundProfilePackageReq getBoundProfilePackageReq = new GetBoundProfilePackageReq();
        getBoundProfilePackageReq.setRequest(getBoundProfilePackageRequest);

        HttpResponse httpResponse = httpsClient.sendRequest(GS.toJson(getBoundProfilePackageReq), smdpAddress, GET_BOUND_PROFILE_PACKAGE_PATH, true);
        checkHttpStatusCode("GetBoundProfilePackage", httpResponse, HttpsURLConnection.HTTP_OK);

        GetBoundProfilePackageResp getBoundProfilePackageResp = GS.fromJson(httpResponse.getContent(), GetBoundProfilePackageResp.class);
        checkFunctionExecutionStatus("GetBoundProfilePackage", getBoundProfilePackageResp);

        GetBoundProfilePackageResponse getBoundProfilePackageResponse = getBoundProfilePackageResp.getResponse();
        Log.debug(TAG, "ES9+ <- : " + getBoundProfilePackageResponse);

        return getBoundProfilePackageResponse;
    }

    public CancelSessionResponseEs9 cancelSession(CancelSessionRequestEs9 cancelSessionRequest) throws Exception {
        ensureSmdpAddressIsAvailable();

        Log.debug(TAG, "ES9+ -> : " + cancelSessionRequest);

        CancelSessionReq cancelSessionReq = new CancelSessionReq();
        cancelSessionReq.setRequest(cancelSessionRequest);

        HttpResponse httpResponse = httpsClient.sendRequest(GS.toJson(cancelSessionReq), smdpAddress, CANCEL_SESSION_PATH, true);
        checkHttpStatusCode("CancelSession", httpResponse, HttpsURLConnection.HTTP_OK);

        CancelSessionResp cancelSessionResp = GS.fromJson(httpResponse.getContent(), CancelSessionResp.class);
        checkFunctionExecutionStatus("CancelSession", cancelSessionResp);

        CancelSessionResponseEs9 cancelSessionResponseEs9 = cancelSessionResp.getResponse();
        Log.debug(TAG, "ES9+ <- : " + cancelSessionResponseEs9);

        return cancelSessionResponseEs9;
    }

    public void handleNotification(PendingNotification pendingNotification) throws Exception {
        ensureSmdpAddressIsAvailable();

        Log.debug(TAG, "ES9+ -> : " + pendingNotification);

        HandleNotificationReq handleNotificationReq = new HandleNotificationReq();
        handleNotificationReq.setRequest(pendingNotification);

        HttpResponse httpResponse = httpsClient.sendRequest(GS.toJson(handleNotificationReq), smdpAddress, HANDLE_NOTIFICATION_PATH, true);
        // No content for response

        checkHttpStatusCode("HandleNotification", httpResponse, HttpsURLConnection.HTTP_NO_CONTENT);
    }

    public FunctionExecutionStatus getFunctionExecutionStatus() {
        return lastFunctionExecutionStatus;
    }

    private void ensureSmdpAddressIsAvailable() throws Exception {
        if(smdpAddress == null) {
            Log.error(TAG, "SM-DP+ address is not available.");
            throw new Exception("SM-DP+ address is not available.");
        }
    }

    private void checkHttpStatusCode(String functionName, HttpResponse httpResponse, int expectedHttpStatusCode) {
        if(httpResponse.getStatusCode() != expectedHttpStatusCode) {
            throw new RuntimeException("Error in " + functionName + ": wrong HTTP status code: " + httpResponse.getStatusCode());
        }
    }

    private void checkFunctionExecutionStatus(String functionName, ResponseMsgBody responseMessage) {
        if((responseMessage.getHeader() != null) &&
                (responseMessage.getHeader().getFunctionExecutionStatus() != null)) {

            this.lastFunctionExecutionStatus = responseMessage.getHeader().getFunctionExecutionStatus();
            String status = lastFunctionExecutionStatus.getStatus();

            if(status.equals(FunctionExecutionStatus.EXECUTION_STATUS_SUCCESS) ||
                    status.equals(FunctionExecutionStatus.EXECUTION_STATUS_WITH_WARNING)) {
                return;
            } else {
                throw new RuntimeException("Error in " + functionName + ": FunctionExecutionStatus: " + lastFunctionExecutionStatus.toString());
            }
        }

        throw new RuntimeException("Error in " + functionName + ": FunctionExecutionStatus not found in response.");
    }
}

core/src/main/java/com/infineon/esim/lpa/core/dtos/result/remote/RemoteError.java
public class RemoteError {
    private final String status;
    private final String subjectCode;
    private final String reasonCode;
    private final String message;

    public RemoteError() {
        this("No error",null, null, null);
    }

    public RemoteError(FunctionExecutionStatus functionExecutionStatus) {
        if(functionExecutionStatus == null) {
            this.status = "No error";
            this.subjectCode = null;
            this.reasonCode = null;
            this.message = null;
        } else {
            this.status = functionExecutionStatus.getStatus();
            if(functionExecutionStatus.getStatusCodeData() != null) {
                this.subjectCode = functionExecutionStatus.getStatusCodeData().getSubjectCode();
                this.reasonCode = functionExecutionStatus.getStatusCodeData().getReasonCode();
                this.message = functionExecutionStatus.getStatusCodeData().getMessage();
            } else {
                this.subjectCode = null;
                this.reasonCode = null;
                this.message = null;
            }
        }
    }

    public RemoteError(String status, String subjectCode, String reasonCode, String message) {
        this.status = status;
        this.subjectCode = subjectCode;
        this.reasonCode = reasonCode;
        this.message = message;
    }

    public String getStatus() {
        return status;
    }

    public String getSubjectCode() {
        return subjectCode;
    }

    public String getReasonCode() {
        return reasonCode;
    }

    public String getMessage() {
        return message;
    }

    @Override
    @NonNull
    public String toString() {
        return "RspError{" +
                "status='" + status + '\'' +
                ", subjectCode='" + subjectCode + '\'' +
                ", reasonCode='" + reasonCode + '\'' +
                ", message='" + message + '\'' +
                '}';
    }
}

core/src/main/java/com/infineon/esim/lpa/core/dtos/result/local/ClearNotificationsResult.java
public class ClearNotificationsResult implements OperationResult {
    public static final int OK = 0;
    public static final int ICCID_NOT_FOUND = 1;
    public static final int UNDEFINED_ERROR = 127;
    public static final int NONE = 128;

    private static final HashMap<Integer, String> lookup;

    static {
        lookup = new HashMap<>();
        lookup.put(OK,"OK");
        lookup.put(ICCID_NOT_FOUND, "ICCID not found.");
        lookup.put(UNDEFINED_ERROR, "Undefined error.");
        lookup.put(NONE, "No error code available.");
    }

    private final List<Integer> values;

    public ClearNotificationsResult(List<Integer> results) {
        this.values = results;
    }

    @Override
    public boolean isOk() {
        for(Integer value : values) {
            if(value != OK) {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean equals(int value) {
        for(Integer internalValue : values) {
            if(value == internalValue) {
                return true;
            }
        }

        return false;
    }

    @Override
    public String getDescription() {
        StringBuilder description = new StringBuilder();

        for(Integer value : values) {
            description.append(lookup.get(value)).append("\n");
        }

        return description.toString();
    }
}

core/src/main/java/com/infineon/esim/lpa/core/dtos/result/local/EnableResult.java
public class EnableResult implements  OperationResult {
    public static final int OK = 0;
    public static final int ICCID_OR_AID_NOT_FOUND = 1;
    public static final int PROFILE_NOT_IN_DISABLED_STATE = 2;
    public static final int DISALLOWED_BY_POLICY = 3;
    public static final int WRONG_PROFILE_REENABLING = 4;
    public static final int CAT_BUSY = 5;
    public static final int UNDEFINED_ERROR = 127;
    public static final int NONE = 128;

    private static final HashMap<Integer, String> lookup;

    static {
        lookup = new HashMap<>();
        lookup.put(OK,"OK");
        lookup.put(ICCID_OR_AID_NOT_FOUND, "ICCID or AID not found.");
        lookup.put(PROFILE_NOT_IN_DISABLED_STATE, "Profile not in disabled state.");
        lookup.put(DISALLOWED_BY_POLICY, "Disallowed by policy.");
        lookup.put(WRONG_PROFILE_REENABLING, "Wrong profile reenabling.");
        lookup.put(CAT_BUSY, "CAT busy.");
        lookup.put(UNDEFINED_ERROR, "Undefined error.");
        lookup.put(NONE, "No error code available.");
    }

    private final int value;

    public EnableResult(int result) {
        this.value = result;
    }

    @Override
    public boolean isOk() {
        return value == OK;
    }

    @Override
    public boolean equals(int value) {
        return this.value == value;
    }

    @Override
    public String getDescription() {
        return lookup.get(value);
    }
}

core/src/main/java/com/infineon/esim/lpa/core/es10/EuiccChannel.java
public interface EuiccChannel {
    List<String> transmitAPDUS(List<String> apdus) throws Exception;
}

core/src/main/java/com/infineon/esim/lpa/core/worker/remote/AuthenticateWorker.java
public class AuthenticateWorker {
    private static final String TAG = AuthenticateWorker.class.getName();

    private final ProfileDownloadSession profileDownloadSession;
    private final Es10Interface es10Interface;
    private final Es9PlusInterface es9PlusInterface;

    public AuthenticateWorker(ProfileDownloadSession profileDownloadSession) {
        this.profileDownloadSession = profileDownloadSession;
        this.es10Interface = profileDownloadSession.getEs10Interface();
        this.es9PlusInterface = profileDownloadSession.getEs9PlusInterface();
    }

    public boolean authenticate() throws Exception {
        Log.debug(TAG, "Authenticating ...");

        // Get required data from eUICC
        EUICCInfo1 euiccInfo1 = es10Interface.es10b_getEuiccInfo1();
        GetEuiccChallengeResponse euiccChallenge = es10Interface.es10b_getEuiccChallenge();

        profileDownloadSession.es10_processEuiccInfo1(euiccInfo1);
        profileDownloadSession.es10_processEuiccChallenge(euiccChallenge);

        // Send initiateAuthenticate to SM-DP+
        InitiateAuthenticationRequest initiateAuthenticationRequest = profileDownloadSession.es9Plus_getInitiateAuthenticationRequest();
        InitiateAuthenticationResponse initiateAuthenticationResponse = es9PlusInterface.initiateAuthentication(initiateAuthenticationRequest);
        profileDownloadSession.es9Plus_processInitiateAuthenticationResponse(es9PlusInterface.getFunctionExecutionStatus(), initiateAuthenticationResponse);

        // Send authenticateServer to eUICC
        AuthenticateServerRequest authenticateServerRequest = profileDownloadSession.es10_getAuthenticateServerRequest();
        AuthenticateServerResponse authenticateServerResponse = es10Interface.es10b_authenticateServer(authenticateServerRequest);
        profileDownloadSession.es10_processAuthenticateServerResponse(authenticateServerResponse);

        // Send authenticateClient to SM-DP+
        AuthenticateClientRequest authenticateClientRequest = profileDownloadSession.es9Plus_getAuthenticateClientRequest();
        AuthenticateClientResponseEs9 authenticateClientResponseEs9 = es9PlusInterface.authenticateClient(authenticateClientRequest);
        profileDownloadSession.es9Plus_processAuthenticateClientResponse(es9PlusInterface.getFunctionExecutionStatus(), authenticateClientResponseEs9);

        return profileDownloadSession.isClientAuthenticatedSuccessfully();
    }
}

core/src/main/java/com/infineon/esim/lpa/core/worker/local/ListProfilesWorker.java
public class ListProfilesWorker {
    private static final String TAG = ListProfilesWorker.class.getName();

    private final Es10Interface es10Interface;

    public ListProfilesWorker(Es10Interface es10Interface) {
        this.es10Interface = es10Interface;
    }

    public List<ProfileMetadata> listProfiles() throws Exception {
        Log.debug(TAG, "Getting list of all profiles...");

        ProfileInfoListResponse profileInfoListResponse = es10Interface.es10c_getProfilesInfoAll();

        List<ProfileMetadata> profileMetadataList = new ArrayList<>();

        for (ProfileInfo profileInfo : profileInfoListResponse.getProfileInfoListOk().getProfileInfo()) {
            profileMetadataList.add(new ProfileMetadata(profileInfo));
        }

        return profileMetadataList;
    }
}

core/src/main/java/com/infineon/esim/lpa/core/dtos/result/local/SetNicknameResult.java
public class SetNicknameResult implements OperationResult {
    public static final int OK = 0;
    public static final int ICCID_NOT_FOUND = 1;
    public static final int UNDEFINED_ERROR = 127;
    public static final int NONE = 128;

    private static final HashMap<Integer, String> lookup;

    static {
        lookup = new HashMap<>();
        lookup.put(OK,"OK");
        lookup.put(ICCID_NOT_FOUND, "ICCID not found.");
        lookup.put(UNDEFINED_ERROR, "Undefined error.");
        lookup.put(NONE, "No error code available.");
    }

    private final int value;

    public SetNicknameResult(int result) {
        this.value = result;
    }

    @Override
    public boolean isOk() {
        return value == OK;
    }

    @Override
    public boolean equals(int value) {
        return this.value == value;
    }

    @Override
    public String getDescription() {
        return lookup.get(value);
    }
}

Answer: return new DownloadResult(getLastEs9PlusError());

<think>
The method downloadProfile ends with an if‑else checking the success of the DownloadProfileWorker. In the success branch it returns a new DownloadResult(). In the failure branch it should return a DownloadResult containing the remote error, mirroring the pattern used in the authenticate method (which returns new AuthenticateResult(getLastEs9PlusError()) on failure). Therefore the next line after the opening else brace is the return statement constructing a DownloadResult with the last ES9+ error.
</think>
return new DownloadResult(getLastEs9PlusError());


Input:
import com.infineon.esim.util.Bytes;
import androidx.annotation.NonNull;
import com.gsma.sgp.messages.rspdefinitions.AuthenticateClientRequest;
import com.gsma.sgp.messages.rspdefinitions.AuthenticateServerResponse;
import com.gsma.sgp.messages.rspdefinitions.TransactionId;
import com.infineon.esim.lpa.core.es9plus.messages.request.base.RequestMsgBody;
import com.infineon.esim.messages.Ber;

Context:
core/src/main/java/com/infineon/esim/lpa/core/es9plus/messages/request/AuthenticateClientReq.java
/*
 * THE SOURCE CODE AND ITS RELATED DOCUMENTATION IS PROVIDED "AS IS". INFINEON
 * TECHNOLOGIES MAKES NO OTHER WARRANTY OF ANY KIND,WHETHER EXPRESS,IMPLIED OR,
 * STATUTORY AND DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY,
 * SATISFACTORY QUALITY, NON INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * THE SOURCE CODE AND DOCUMENTATION MAY INCLUDE ERRORS. INFINEON TECHNOLOGIES
 * RESERVES THE RIGHT TO INCORPORATE MODIFICATIONS TO THE SOURCE CODE IN LATER
 * REVISIONS OF IT, AND TO MAKE IMPROVEMENTS OR CHANGES IN THE DOCUMENTATION OR
 * THE PRODUCTS OR TECHNOLOGIES DESCRIBED THEREIN AT ANY TIME.
 *
 * INFINEON TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT OR
 * CONSEQUENTIAL DAMAGE OR LIABILITY ARISING FROM YOUR USE OF THE SOURCE CODE OR
 * ANY DOCUMENTATION, INCLUDING BUT NOT LIMITED TO, LOST REVENUES, DATA OR
 * PROFITS, DAMAGES OF ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL NATURE, PUNITIVE
 * DAMAGES, LOSS OF PROPERTY OR LOSS OF PROFITS ARISING OUT OF OR IN CONNECTION
 * WITH THIS AGREEMENT, OR BEING UNUSABLE, EVEN IF ADVISED OF THE POSSIBILITY OR
 * PROBABILITY OF SUCH DAMAGES AND WHETHER A CLAIM FOR SUCH DAMAGE IS BASED UPON
 * WARRANTY, CONTRACT, TORT, NEGLIGENCE OR OTHERWISE.
 *
 * (C)Copyright INFINEON TECHNOLOGIES All rights reserved
 */

package com.infineon.esim.lpa.core.es9plus.messages.request;

public class AuthenticateClientReq extends RequestMsgBody {
    private String transactionId;
    private String authenticateServerResponse;

    public String getTransactionId() {
        return transactionId;
    }

    public void setTransactionId(String transactionId) {
        this.transactionId = transactionId;
    }

    public String getAuthenticateServerResponse() {

messages/src/main/java/com/gsma/sgp/messages/rspdefinitions/TransactionId.java
public class TransactionId extends BerOctetString {

	private static final long serialVersionUID = 1L;

	public TransactionId() {
	}

	public TransactionId(byte[] value) {
		super(value);
	}

}

messages/src/main/java/com/gsma/sgp/messages/rspdefinitions/AuthenticateServerResponse.java
public class AuthenticateServerResponse implements BerType, Serializable {

	private static final long serialVersionUID = 1L;

	public byte[] code = null;
	public static final BerTag tag = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 56);

	private AuthenticateResponseOk authenticateResponseOk = null;
	private AuthenticateResponseError authenticateResponseError = null;

	public AuthenticateServerResponse() {
	}

	public AuthenticateServerResponse(byte[] code) {
		this.code = code;
	}

	public void setAuthenticateResponseOk(AuthenticateResponseOk authenticateResponseOk) {
		this.authenticateResponseOk = authenticateResponseOk;
	}

	public AuthenticateResponseOk getAuthenticateResponseOk() {
		return authenticateResponseOk;
	}

	public void setAuthenticateResponseError(AuthenticateResponseError authenticateResponseError) {
		this.authenticateResponseError = authenticateResponseError;
	}

	public AuthenticateResponseError getAuthenticateResponseError() {
		return authenticateResponseError;
	}

	public int encode(OutputStream reverseOS) throws IOException {
		return encode(reverseOS, true);
	}

	public int encode(OutputStream reverseOS, boolean withTag) throws IOException {

		if (code != null) {
			for (int i = code.length - 1; i >= 0; i--) {
				reverseOS.write(code[i]);
			}
			if (withTag) {
				return tag.encode(reverseOS) + code.length;
			}
			return code.length;
		}

		int codeLength = 0;
		if (authenticateResponseError != null) {
			codeLength += authenticateResponseError.encode(reverseOS, false);
			// write tag: CONTEXT_CLASS, CONSTRUCTED, 1
			reverseOS.write(0xA1);
			codeLength += 1;
			codeLength += BerLength.encodeLength(reverseOS, codeLength);
			if (withTag) {
				codeLength += tag.encode(reverseOS);
			}
			return codeLength;
		}

		if (authenticateResponseOk != null) {
			codeLength += authenticateResponseOk.encode(reverseOS, false);
			// write tag: CONTEXT_CLASS, CONSTRUCTED, 0
			reverseOS.write(0xA0);
			codeLength += 1;
			codeLength += BerLength.encodeLength(reverseOS, codeLength);
			if (withTag) {
				codeLength += tag.encode(reverseOS);
			}
			return codeLength;
		}

		throw new IOException("Error encoding CHOICE: No element of CHOICE was selected.");
	}

	public int decode(InputStream is) throws IOException {
		return decode(is, true);
	}

	public int decode(InputStream is, boolean withTag) throws IOException {
		int codeLength = 0;
		BerLength length = new BerLength();
		BerTag berTag = new BerTag();

		if (withTag) {
			codeLength += tag.decodeAndCheck(is);
		}

		codeLength += length.decode(is);
		codeLength += berTag.decode(is);

		if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0)) {
			authenticateResponseOk = new AuthenticateResponseOk();
			codeLength += authenticateResponseOk.decode(is, false);
			return codeLength;
		}

		if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 1)) {
			authenticateResponseError = new AuthenticateResponseError();
			codeLength += authenticateResponseError.decode(is, false);
			return codeLength;
		}

		throw new IOException("Error decoding CHOICE: Tag " + berTag + " matched to no item.");
	}

	public void encodeAndSave(int encodingSizeGuess) throws IOException {
		ReverseByteArrayOutputStream reverseOS = new ReverseByteArrayOutputStream(encodingSizeGuess);
		encode(reverseOS, false);
		code = reverseOS.getArray();
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		appendAsString(sb, 0);
		return sb.toString();
	}

	public void appendAsString(StringBuilder sb, int indentLevel) {

		if (authenticateResponseOk != null) {
			sb.append("authenticateResponseOk: ");
			authenticateResponseOk.appendAsString(sb, indentLevel + 1);
			return;
		}

		if (authenticateResponseError != null) {
			sb.append("authenticateResponseError: ");
			authenticateResponseError.appendAsString(sb, indentLevel + 1);
			return;
		}

		sb.append("<none>");
	}

}

messages/src/main/java/com/infineon/esim/messages/Ber.java
@SuppressWarnings("unused")
public class Ber {
    private static final String TAG = Ber.class.getName();

    // Tags see: http://luca.ntop.org/Teaching/Appunti/asn1.html
    public static final BerTag BER_TAG_SEQUENCE_OF = new BerTag(BerTag.UNIVERSAL_CLASS, BerTag.CONSTRUCTED, 0x10); // 0x30
    public static final BerTag BER_TAG_TRANSACTION_ID = new BerTag(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0x00); // 0x80
    public static final BerTag BER_TAG_CONTROL_REF_TEMPLATE = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0x06); // 0xA6

    public static final BerTag BER_TAG_SIGNATURE = new BerTag(BerTag.APPLICATION_CLASS, BerTag.PRIMITIVE, 0x37); // 0x5F37
    public static final BerTag BER_TAG_OT_KEY = new BerTag(BerTag.APPLICATION_CLASS, BerTag.PRIMITIVE, 0x49); // 0x5F49

    public static final BerTag BER_TAG_FIRST_SEQ_OF_87_CONTAINER = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0x00); // 0xA0
    public static final BerTag BER_TAG_SEQ_OF_88_CONTAINER = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0x01); // 0xA1
    public static final BerTag BER_TAG_SECOND_SEQ_OF_87_CONTAINER = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0x02); // 0xA2
    public static final BerTag BER_TAG_SEQ_OF_86_CONTAINER = new BerTag(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0x03); // 0xA3

    public static final BerTag BER_TAG_SEQ_OF_86 = new BerTag(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0x06); // 0x86
    public static final BerTag BER_TAG_SEQ_OF_87 = new BerTag(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0x07); // 0x87
    public static final BerTag BER_TAG_SEQ_OF_88 = new BerTag(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0x08); // 0x88

    private static final int ENCODING_SIZE_GUESS = 32; // Use standard ESG of ByteArrayOutputStream

    /**
     * Encodes a BER tag from a BerTag object to a byte array.
     * @param tag BerTag object to be encoded
     * @return Byte array representing the encoded BER tag
     */
    public static byte[] encodeTag(BerTag tag) {
        ReverseByteArrayOutputStream os = new ReverseByteArrayOutputStream(4);

        try {
            tag.encode(os);
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during encoding of BerTag object: " + tag + ".", e);
        }

        return os.getArray();
    }

    /**
     * Encodes a BER length from an int to a byte array.
     * @param length BER length as int to be encoded
     * @return Byte array representing the encoded BER length
     */
    public static byte[] encodeLength(int length) {
        // Java int range is from -2147483648 to 2147483647 and uses 4 Byte.
        if (length < 0) {
            Log.error(TAG,"Error: Negative length not supported: " + length);
            throw new IllegalArgumentException("Negative length not supported.");
        }

        final int BER_LENGTH_ESG = 4; // Assumption: length 0xFFFFFFFF because of int range. Resize if not...
        ReverseByteArrayOutputStream os = new ReverseByteArrayOutputStream(BER_LENGTH_ESG, true);

        try {
            BerLength.encodeLength(os, length);
        } catch (IOException e) {

            Log.error(TAG,"Eror: IOException during length encoding: ", e);
        }

        return os.getArray();
    }

    /**
     * Encodes a list of elements in a BER sequence ("SEQUENCE" or "SEQUENCE OF") to a byte array.
     * @param data Elements to be encoded as BER sequence
     * @return Byte array representing the encoded list of elements in a BER sequence as byte array.
     */
    public static byte[] encodeSequence(List<byte[]> data) {
        byte[] output = null;

        for (byte[] dataElement : data) {
            output = Bytes.concatenate(output, dataElement);
        }

        return encodeElement(output, BER_TAG_SEQUENCE_OF);
    }

    /**
     * Encodes a BER element without a tag using only length and value (LV).
     * @param data Element to be encoded
     * @return Byte array representing the encoded LV BER element
     */
    public static byte[] encodeElementWithoutTag(byte[] data) {
        return encodeElement(data, (byte[]) null);
    }

    /**
     * Encodes a BER element with tag, length and value (TLV).
     * @param data Element to be encoded
     * @param tag BER tag to be used
     * @return Byte array representing the encoded TLV BER element.
     */
    public static byte[] encodeElement(byte[] data, BerTag tag) {
        return encodeElement(data, encodeTag(tag));
    }

    private static byte[] encodeElement(byte[] data, byte[] tag) {
        byte[] dataEncoded = null;

        // Check if a tag shall be written
        if (tag != null) {
            dataEncoded = tag;
        }

        // Encode length and data
        byte[] length = encodeLength(data.length);
        dataEncoded = Bytes.concatenate(dataEncoded, length, data);

        return dataEncoded;
    }

    /**
     * Swaps the BER tag of an BER element
     * @param input BER TLV element as byte array
     * @param newTag new BER tag as BerTag object
     * @return BER element with new tag
     */
    public static byte[] swapTag(byte[] input, BerTag newTag) {
        return Ber.encodeElement(Ber.stripTagAndLength(input), newTag);
    }

    /**
     * Strips the tag and length bytes from an encoded BER TLV element
     * @param input BER TLV element to be stripped
     * @return Byte array representing the value
     */
    public static byte[] stripTagAndLength(byte[] input) {
        byte[] output = null;
        InputStream is = new ByteArrayInputStream(input);

        try {
            // Decode tag (and throw away)
            BerTag tag = new BerTag();
            tag.decode(is);

            // Decode length (and throw away)
            BerLength length = new BerLength();
            length.decode(is);

            // Write content to output
            if (length.val != 0) {
                output = Bytes.toByteArray(is);
            }
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during stripping of type and length of BER data.", e);
        }

        return output;
    }

    public static byte[] getTag(byte[] input) {
        InputStream is = new ByteArrayInputStream(input);

        try {
            BerTag tag = new BerTag();
            tag.decode(is);
            return encodeTag(tag);
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during stripping of type and length of BER data.", e);
        }

        return null;
    }

    public static byte[] getLength(byte[] input) {
        InputStream is = new ByteArrayInputStream(input);

        try {
            // Decode tag (and throw away)
            BerTag tag = new BerTag();
            tag.decode(is);

            BerLength length = new BerLength();
            length.decode(is);
            return encodeLength(length.val);
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during stripping of type and length of BER data.", e);
        }

        return null;
    }

    /**
     * Creates a BerType object from an BER encoded byte array.
     * @param tClass Class object of the desired BerType
     * @param input BER encoded byte array as input
     * @param <T> Class type of the desired BerType
     * @return BerType object of class T created from BER encoded byte array
     */
    public static <T extends BerType> T createFromEncodedByteArray(Class<T> tClass, byte[] input) {
        T berObject = null;

        try {
            berObject = tClass.getDeclaredConstructor().newInstance();
        } catch (InstantiationException e) {
            Log.error(TAG,"Error: InstantiationException for class \"" + tClass.getName() + "\" in while creating instance.", e);
        } catch (IllegalAccessException e) {
            Log.error(TAG,"Error: IllegalAccessException for class \"" + tClass.getName() + "\" in while creating instance.", e);
        } catch (InvocationTargetException e) {
            Log.error(TAG,"Error: InvocationTargetException for class \"" + tClass.getName() + "\" in while creating instance.", e);
        } catch (NoSuchMethodException e) {
            Log.error(TAG,"Error: NoSuchMethodException for class \"" + tClass.getName() + "\" in while creating instance.", e);
        }

        InputStream inputStream = new ByteArrayInputStream(input);

        try {
            if(berObject != null) {
                berObject.decode(inputStream);
            } else {
                return null;
            }
            inputStream.close();
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during  ASN1 message encoding", e);
        }

        Log.verbose(TAG,"Decoded object of class " + berObject.getClass().getName() + ": " + berObject);

        return berObject;
    }

    /**
     * Creates a BerType object from an BER encoded Hex-String object.
     * @param tClass Class object of the desired BerType
     * @param input BER encoded Hex-String object as input
     * @param <T> Class type of the desired BerType
     * @return BerType object of class T created from BER encoded Hex-String object
     */
    public static <T extends BerType> T createFromEncodedHexString(Class<T> tClass, String input) {
        return createFromEncodedByteArray(tClass, Bytes.decodeHexString(input));
    }

    /**
     * Creates a BerType object from an BER encoded Base64-String object.
     * @param tClass Class object of the desired BerType
     * @param input BER encoded Base64-String object as input
     * @param <T> Class type of the desired BerType
     * @return BerType object of class T created from BER encoded Base64-String object
     */
    public static <T extends BerType> T createFromEncodedBase64String(Class<T> tClass, String input) {
        return createFromEncodedByteArray(tClass, Bytes.decodeBase64String(input));
    }

    /**
     * Creates a signature of class BerOctetString from a BER encoded Base64-String object.
     * @param input BER encoded Base64-String object as input
     * @return BerOctetString created from BER encoded Base64-String object
     */
    public static BerOctetString createSignatureFromEncodedBase64String(String input) {
        // 5F37 tag and length 40 has to be scrapped
        byte[] signatureRaw = Bytes.decodeBase64String(input);
        byte[] signatureRawTrunc = Bytes.sub(signatureRaw, 3, signatureRaw.length - 3);
        return new BerOctetString(signatureRawTrunc);
    }

    /**
     * Returns BerType object as BER encoded bytes represented by a byte array.
     * @param berObject BerType object as input
     * @return BER encoded BerType object as byte array
     */
    public static byte[] getEncodedAsByteArray(BerType berObject) {
        int codeLength = 0;
        ReverseByteArrayOutputStream reverseByteArrayOutputStream = new ReverseByteArrayOutputStream(ENCODING_SIZE_GUESS, true);

        if(berObject == null) {
            return reverseByteArrayOutputStream.getArray();
        }

        Log.verbose(TAG,"Encoding object of class " + berObject.getClass().getSimpleName() + ": " + berObject);

        try {
            codeLength = berObject.encode(reverseByteArrayOutputStream);
            reverseByteArrayOutputStream.close();
        } catch (IOException e) {
            Log.error(TAG,"Error: IOException during  ASN1 message decoding", e);
        }

        byte[] output = reverseByteArrayOutputStream.getArray();

        if (codeLength != output.length) {
            Log.error(TAG,"Error: Decoding ASN1 message ended in code length mismatch: codeLength: " + codeLength + " output.length: " + output.length + ".");
        }

        return output;
    }

    /**
     * Returns BerType object as BER encoded bytes represented by a Hex-String object.
     * @param berObject BerType object as input
     * @return BER encoded BerType object as Hex-String object
     */
    public static String getEncodedAsHexString(BerType berObject) {
        return Bytes.encodeHexString(getEncodedAsByteArray(berObject));
    }

    /**
     * Returns BerType object as BER encoded bytes represented by a Base64-String object.
     * @param berObject BerType object as input
     * @return BER encoded BerType object as Base64-String object
     */
    public static String getEncodedAsBase64String(BerType berObject) {
        return Bytes.encodeBase64String(getEncodedAsByteArray(berObject));
    }

    /**
     * Returns BerType object as BER encoded value (without leading tag and length) represented by a byte array.
     *
     * NOTE: The value itself is BER encoded with tag and length as TLV.
     * @param berObject BerType object as input
     * @return BER encoded value BerType object as byte array
     */
    public static byte[] getEncodedValueAsByteArray(BerType berObject) {
        return stripTagAndLength(getEncodedAsByteArray(berObject));
    }

    /**
     * Returns BerType object as BER encoded value (without leading tag and length) represented by a Hex-String object.
     *
     * NOTE: The value itself is BER encoded with tag and length as TLV.
     * @param berObject BerType object as input
     * @return BER encoded value BerType object as Hex-String object
     */
    public static String getEncodedValueAsHexString(BerType berObject) {
        return Bytes.encodeHexString(getEncodedValueAsByteArray(berObject));
    }

    /**
     * Returns BerType object as BER encoded value (without leading tag and length) represented by a Base64-String object.
     *
     * NOTE: The value itself is BER encoded with tag and length as TLV.
     * @param berObject BerType object as input
     * @return BER encoded value BerType object as Base64-String object
     */
    public static String getEncodedValueAsBase64String(BerType berObject) {
        return Bytes.encodeBase64String(getEncodedValueAsByteArray(berObject));
    }

    public static String getEncodedTagAsHexString(BerType berObject) {
        return Bytes.encodeHexString(getTag(getEncodedAsByteArray(berObject)));
    }

    public static String getEncodedLengthAsHexString(BerType berObject) {
        return Bytes.encodeHexString(getLength(getEncodedAsByteArray(berObject)));
    }
}

Answer: return authenticateServerResponse;

<think>
The class defines a private String field named authenticateServerResponse and is currently inside the getter method getAuthenticateServerResponse(). The typical implementation of a getter returns the field's value. Therefore the next line should be the return statement for that field.
</think>
return authenticateServerResponse;


Input:
import java.util.List;
import java.util.Map;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
import me.pepperbell.continuity.api.client.CTMLoader;
import me.pepperbell.continuity.api.client.CTMLoaderRegistry;
import me.pepperbell.continuity.api.client.CTMPropertiesFactory;
import me.pepperbell.continuity.client.event.AddBlockStateModelCallback;
import me.pepperbell.continuity.client.event.ModelsAddedCallback;
import me.pepperbell.continuity.client.handler.AddBlockStateModelCallbackHandler;
import me.pepperbell.continuity.client.handler.ClientPlayJoinHandler;
import me.pepperbell.continuity.client.handler.ClientStartedHandler;
import me.pepperbell.continuity.client.handler.ModelsAddedCallbackHandler;
import me.pepperbell.continuity.client.processor.CompactCTMQuadProcessor;
import me.pepperbell.continuity.client.processor.HorizontalQuadProcessor;
import me.pepperbell.continuity.client.processor.HorizontalVerticalQuadProcessor;
import me.pepperbell.continuity.client.processor.ProcessingDataKeys;
import me.pepperbell.continuity.client.processor.TopQuadProcessor;
import me.pepperbell.continuity.client.processor.VerticalHorizontalQuadProcessor;
import me.pepperbell.continuity.client.processor.VerticalQuadProcessor;
import me.pepperbell.continuity.client.processor.overlay.SimpleOverlayQuadProcessor;
import me.pepperbell.continuity.client.processor.overlay.StandardOverlayQuadProcessor;
import me.pepperbell.continuity.client.processor.simple.CTMSpriteProvider;
import me.pepperbell.continuity.client.processor.simple.FixedSpriteProvider;
import me.pepperbell.continuity.client.processor.simple.RandomSpriteProvider;
import me.pepperbell.continuity.client.processor.simple.RepeatSpriteProvider;
import me.pepperbell.continuity.client.processor.simple.SimpleQuadProcessor;
import me.pepperbell.continuity.client.properties.BaseCTMProperties;
import me.pepperbell.continuity.client.properties.CompactConnectingCTMProperties;
import me.pepperbell.continuity.client.properties.ConnectingCTMProperties;
import me.pepperbell.continuity.client.properties.RandomCTMProperties;
import me.pepperbell.continuity.client.properties.RepeatCTMProperties;
import me.pepperbell.continuity.client.properties.StandardConnectingCTMProperties;
import me.pepperbell.continuity.client.properties.TileAmountValidator;
import me.pepperbell.continuity.client.properties.overlay.BaseOverlayCTMProperties;
import me.pepperbell.continuity.client.properties.overlay.RandomOverlayCTMProperties;
import me.pepperbell.continuity.client.properties.overlay.RepeatOverlayCTMProperties;
import me.pepperbell.continuity.client.properties.overlay.StandardConnectingOverlayCTMProperties;
import me.pepperbell.continuity.client.properties.overlay.StandardOverlayCTMProperties;
import me.pepperbell.continuity.client.resource.CTMLoadingContainer;
import me.pepperbell.continuity.client.resource.CustomBlockLayers;
import me.pepperbell.continuity.client.util.biome.BiomeRetriever;
import net.fabricmc.api.ClientModInitializer;
import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
import net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents;
import net.fabricmc.fabric.api.resource.ResourceManagerHelper;
import net.fabricmc.fabric.api.resource.ResourcePackActivationType;
import net.fabricmc.loader.api.FabricLoader;
import net.minecraft.block.BlockState;
import net.minecraft.client.util.ModelIdentifier;
import net.minecraft.util.Identifier;

Context:
src/main/java/me/pepperbell/continuity/client/ContinuityClient.java
package me.pepperbell.continuity.client;

public class ContinuityClient implements ClientModInitializer {
	public static final String ID = "continuity";
	public static final String NAME = "Continuity";
	public static final Logger LOGGER = LogManager.getLogger(NAME);

src/main/java/me/pepperbell/continuity/client/processor/simple/FixedSpriteProvider.java
public class FixedSpriteProvider implements SpriteProvider {
	protected Sprite sprite;

	public FixedSpriteProvider(Sprite sprite) {
		this.sprite = sprite;
	}

	@Override
	public Sprite getSprite(QuadView quad, Sprite sprite, BlockRenderView blockView, BlockState state, BlockPos pos, Supplier<Random> randomSupplier, ProcessingDataProvider dataProvider) {
		return this.sprite;
	}

	public static class Factory implements SpriteProvider.Factory<BaseCTMProperties> {
		@Override
		public SpriteProvider createSpriteProvider(Sprite[] sprites, BaseCTMProperties properties) {
			return new FixedSpriteProvider(sprites[0]);
		}

		@Override
		public int getTextureAmount(BaseCTMProperties properties) {
			return 1;
		}
	}
}

src/main/java/me/pepperbell/continuity/client/properties/CompactConnectingCTMProperties.java
public class CompactConnectingCTMProperties extends StandardConnectingCTMProperties {
	protected Int2IntMap tileReplacementMap;

	public CompactConnectingCTMProperties(Properties properties, Identifier id, String packName, int packPriority, String method) {
		super(properties, id, packName, packPriority, method);
	}

	@Override
	public void init() {
		super.init();
		parseTileReplacements();
	}

	protected void parseTileReplacements() {
		for (String key : properties.stringPropertyNames()) {
			if (key.startsWith("ctm.")) {
				String indexStr = key.substring(4);
				int index;
				try {
					index = Integer.parseInt(indexStr);
				} catch (NumberFormatException e) {
					continue;
				}
				if (index < 0) {
					continue;
				}
				String valueStr = properties.getProperty(key);
				int value;
				try {
					value = Integer.parseInt(valueStr);
				} catch (NumberFormatException e) {
					ContinuityClient.LOGGER.warn("Invalid '" + key + "' value '" + valueStr + "' in file '" + id + "' in pack '" + packName + "'");
					continue;
				}
				// TODO: deduplicate code
				if (value < 0) {
					ContinuityClient.LOGGER.warn("Invalid '" + key + "' value '" + valueStr + "' in file '" + id + "' in pack '" + packName + "'");
					continue;
				}
				if (tileReplacementMap == null) {
					tileReplacementMap = new Int2IntArrayMap();
				}
				tileReplacementMap.put(index, value);
			}
		}
	}

	@Override
	public boolean isValidForMultipass() {
		return false;
	}

	public Int2IntMap getTileReplacementMap() {
		return tileReplacementMap;
	}
}

src/main/java/me/pepperbell/continuity/client/properties/overlay/StandardConnectingOverlayCTMProperties.java
public class StandardConnectingOverlayCTMProperties extends StandardConnectingCTMProperties implements OverlayPropertiesSection.Provider {
	protected OverlayPropertiesSection overlaySection;

	public StandardConnectingOverlayCTMProperties(Properties properties, Identifier id, String packName, int packPriority, String method) {
		super(properties, id, packName, packPriority, method);
		overlaySection = new OverlayPropertiesSection(properties, id, packName);
	}

	@Override
	public void init() {
		super.init();
		overlaySection.init();
	}

	@Override
	public OverlayPropertiesSection getOverlayPropertiesSection() {
		return overlaySection;
	}
}

src/main/java/me/pepperbell/continuity/client/event/AddBlockStateModelCallback.java
public interface AddBlockStateModelCallback {
	Event<AddBlockStateModelCallback> EVENT = EventFactory.createArrayBacked(AddBlockStateModelCallback.class,
			listeners -> (id, state, model, modelLoader) -> {
				for (AddBlockStateModelCallback callback : listeners) {
					callback.onAddBlockStateModel(id, state, model, modelLoader);
				}
			}
	);

	void onAddBlockStateModel(ModelIdentifier id, BlockState state, UnbakedModel model, ModelLoader modelLoader);
}

src/main/java/me/pepperbell/continuity/client/properties/RepeatCTMProperties.java
public class RepeatCTMProperties extends BaseCTMProperties {
	protected int width;
	protected int height;
	protected Symmetry symmetry = Symmetry.NONE;

	public RepeatCTMProperties(Properties properties, Identifier id, String packName, int packPriority, String method) {
		super(properties, id, packName, packPriority, method);
	}

	@Override
	public void init() {
		super.init();
		parseWidth();
		parseHeight();
		parseSymmetry();
	}

	protected void parseWidth() {
		String widthStr = properties.getProperty("width");
		if (widthStr != null) {
			widthStr = widthStr.trim();
			try {
				int width = Integer.parseInt(widthStr);
				if (width > 0) {
					this.width = width;
					return;
				}
			} catch (NumberFormatException e) {
				//
			}
			ContinuityClient.LOGGER.error("Invalid 'width' value '" + widthStr + "' in file '" + id + "' in pack '" + packName + "'");
			valid = false;
		}
	}

	protected void parseHeight() {
		String heightStr = properties.getProperty("height");
		if (heightStr != null) {
			heightStr = heightStr.trim();
			try {
				int height = Integer.parseInt(heightStr);
				if (height > 0) {
					this.height = height;
					return;
				}
			} catch (NumberFormatException e) {
				//
			}
			ContinuityClient.LOGGER.error("Invalid 'height' value '" + heightStr + "' in file '" + id + "' in pack '" + packName + "'");
			valid = false;
		}
	}

	protected void parseSymmetry() {
		Symmetry symmetry = PropertiesParsingHelper.parseSymmetry(properties, "symmetry", id, packName);
		if (symmetry != null) {
			this.symmetry = symmetry;
		}
	}

	public int getWidth() {
		return width;
	}

	public int getHeight() {
		return height;
	}

	public Symmetry getSymmetry() {
		return symmetry;
	}
}

src/main/java/me/pepperbell/continuity/api/client/CTMLoader.java
public interface CTMLoader<T extends CTMProperties> {
	CTMPropertiesFactory<T> getPropertiesFactory();

	QuadProcessorFactory<T> getProcessorFactory();

	static <T extends CTMProperties> CTMLoader<T> of(CTMPropertiesFactory<T> propertiesFactory, QuadProcessorFactory<T> processorFactory) {
		return new CTMLoader<T>() {
			@Override
			public CTMPropertiesFactory<T> getPropertiesFactory() {
				return propertiesFactory;
			}

			@Override
			public QuadProcessorFactory<T> getProcessorFactory() {
				return processorFactory;
			}
		};
	}
}

src/main/java/me/pepperbell/continuity/client/processor/VerticalHorizontalQuadProcessor.java
public class VerticalHorizontalQuadProcessor extends VerticalQuadProcessor {
	// Indices for this array are formed from these bit values:
	// 32     16
	// 1   *   8
	// 2       4
	protected static final int[] SPRITE_INDEX_MAP_1 = new int[] {
			3, 6, 3, 3, 3, 6, 3, 3, 4, 5, 4, 4, 3, 6, 3, 3,
			3, 6, 3, 3, 3, 6, 3, 3, 3, 6, 3, 3, 3, 6, 3, 3,
			3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 3, 3, 3, 3,
			3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
	};

	public VerticalHorizontalQuadProcessor(Sprite[] sprites, ProcessingPredicate processingPredicate, ConnectionPredicate connectionPredicate) {
		super(sprites, processingPredicate, connectionPredicate);
	}

	@Override
	public ProcessingResult processQuadInner(MutableQuadView quad, Sprite sprite, BlockRenderView blockView, BlockState state, BlockPos pos, Supplier<Random> randomSupplier, int pass, int processorIndex, ProcessingContext context) {
		Direction[] directions = DirectionMaps.getDirections(quad);
		BlockPos.Mutable mutablePos = context.getData(ProcessingDataKeys.MUTABLE_POS_KEY);
		int connections = getConnections(directions, mutablePos, blockView, state, pos, quad.lightFace(), sprite);
		Sprite newSprite;
		if (connections != 0) {
			newSprite = sprites[SPRITE_INDEX_MAP[connections]];
		} else {
			connections = getConnections1(directions, mutablePos, blockView, state, pos, quad.lightFace(), sprite);
			newSprite = sprites[SPRITE_INDEX_MAP_1[connections]];
		}
		return SimpleQuadProcessor.process(quad, sprite, newSprite);
	}

	protected int getConnections1(Direction[] directions, BlockPos.Mutable mutablePos, BlockRenderView blockView, BlockState state, BlockPos pos, Direction face, Sprite quadSprite) {
		mutablePos.set(pos);
		int connections = 0;
		for (int i = 0; i < 2; i++) {
			mutablePos.move(directions[i * 2]);
			if (connectionPredicate.shouldConnect(state, quadSprite, pos, mutablePos, face, blockView)) {
				connections |= 1 << i * 3;
			}
			mutablePos.set(pos);
		}
		for (int i = 0; i < 4; i++) {
			int shift = (i / 2) * 3;
			int index1 = i;
			int index2 = (i + 1) % 4;
			if (((connections >> shift) & 1) == 1) {
				mutablePos.move(directions[index1]).move(directions[index2]);
				if (connectionPredicate.shouldConnect(state, quadSprite, pos, mutablePos, face, blockView)) {
					connections |= 1 << (shift + i % 2 + 1);
				}
				mutablePos.set(pos);
			}
		}
		return connections;
	}

	public static class Factory extends AbstractQuadProcessorFactory<ConnectingCTMProperties> {
		@Override
		public QuadProcessor createProcessor(ConnectingCTMProperties properties, Sprite[] sprites) {
			return new VerticalHorizontalQuadProcessor(sprites, BaseProcessingPredicate.fromProperties(properties), properties.getConnectionPredicate());
		}

		@Override
		public int getTextureAmount(ConnectingCTMProperties properties) {
			return 7;
		}
	}
}

src/main/java/me/pepperbell/continuity/client/properties/StandardConnectingCTMProperties.java
public class StandardConnectingCTMProperties extends ConnectingCTMProperties {
	protected boolean innerSeams = false;

	public StandardConnectingCTMProperties(Properties properties, Identifier id, String packName, int packPriority, String method) {
		super(properties, id, packName, packPriority, method);
	}

	@Override
	public void init() {
		super.init();
		parseInnerSeams();
	}

	protected void parseInnerSeams() {
		String innerSeamsStr = properties.getProperty("innerSeams");
		if (innerSeamsStr != null) {
			innerSeamsStr = innerSeamsStr.trim();
			innerSeams = Boolean.parseBoolean(innerSeamsStr);
		}
	}

	public boolean getInnerSeams() {
		return innerSeams;
	}
}

src/main/java/me/pepperbell/continuity/client/handler/ModelsAddedCallbackHandler.java
public class ModelsAddedCallbackHandler implements ModelsAddedCallback {
	private final Map<ModelIdentifier, BlockState> modelId2StateMap;
	private final Map<ModelIdentifier, List<CTMLoadingContainer<?>>> modelId2ContainersMap;

	public ModelsAddedCallbackHandler(Map<ModelIdentifier, BlockState> modelId2StateMap, Map<ModelIdentifier, List<CTMLoadingContainer<?>>> modelId2ContainersMap) {
		this.modelId2StateMap = modelId2StateMap;
		this.modelId2ContainersMap = modelId2ContainersMap;
	}

	@Override
	public void onModelsAdded(ModelLoader modelLoader, ResourceManager resourceManager, Profiler profiler, Map<Identifier, UnbakedModel> unbakedModels, Map<Identifier, UnbakedModel> modelsToBake) {
		Object2ObjectOpenHashMap<Identifier, UnbakedModel> wrappedModels = new Object2ObjectOpenHashMap<>();

		UnbakedModel missingModel = unbakedModels.get(ModelLoader.MISSING_ID);
		Function<Identifier, UnbakedModel> unbakedModelGetter = id -> {
			UnbakedModel model = unbakedModels.get(id);
			if (model == null) {
				return missingModel;
			}
			return model;
		};
		VoidSet<Pair<String, String>> voidSet = VoidSet.get();
		CollectionBasedConsumer<CTMLoadingContainer<?>> reusableConsumer = new CollectionBasedConsumer<>();

		// Check which models should be wrapped
		for (Map.Entry<Identifier, UnbakedModel> entry : unbakedModels.entrySet()) {
			if (entry.getKey() instanceof ModelIdentifier) {
				ModelIdentifier id = (ModelIdentifier)entry.getKey();

				// Only wrap final block state models
				if (isBlockStateModelId(id)) {
					UnbakedModel model = entry.getValue();
					Collection<SpriteIdentifier> dependencies = model.getTextureDependencies(unbakedModelGetter, voidSet);
					List<CTMLoadingContainer<?>> containerList = modelId2ContainersMap.get(id);
					if (containerList == null) {
						containerList = CTMPropertiesLoader.getAllAffecting(dependencies);
						if (containerList == null) {
							continue;
						}
					} else {
						reusableConsumer.setCollection(containerList);
						CTMPropertiesLoader.consumeAllAffecting(dependencies, reusableConsumer);
					}
					containerList.sort(Collections.reverseOrder());

					Set<CTMLoadingContainer<?>> multipassContainerSet = null;
					int amount = containerList.size();
					for (int i = 0; i < amount; i++) {
						CTMLoadingContainer<?> container = containerList.get(i);
						Set<CTMLoadingContainer<?>> dependents = container.getRecursiveMultipassDependents();
						if (dependents != null) {
							if (multipassContainerSet == null) {
								multipassContainerSet = new ObjectArraySet<>();
							}
							multipassContainerSet.addAll(dependents);
						}
					}
					List<CTMLoadingContainer<?>> multipassContainerList = null;
					if (multipassContainerSet != null) {
						BlockState state = modelId2StateMap.get(id);
						for (CTMLoadingContainer<?> container : multipassContainerSet) {
							if (!container.getProperties().affectsBlockStates() || container.getProperties().affectsBlockState(state)) {
								if (multipassContainerList == null) {
									multipassContainerList = new ObjectArrayList<>();
								}
								multipassContainerList.add(container);
							}
						}
						if (multipassContainerList != null) {
							multipassContainerList.sort(Collections.reverseOrder());
						}
					}

					wrappedModels.put(id, new CTMUnbakedModel(model, containerList, multipassContainerList));
				}
			}
		}

		modelId2StateMap.clear();
		modelId2ContainersMap.clear();

		// Inject wrapped models
		ObjectIterator<Object2ObjectMap.Entry<Identifier, UnbakedModel>> iterator = wrappedModels.object2ObjectEntrySet().fastIterator();
		while (iterator.hasNext()) {
			Object2ObjectMap.Entry<Identifier, UnbakedModel> entry = iterator.next();
			Identifier id = entry.getKey();
			UnbakedModel wrapped = entry.getValue();

			unbakedModels.put(id, wrapped);
			if (modelsToBake.containsKey(id)) {
				modelsToBake.put(id, wrapped);
			}
		}
	}

	private boolean isBlockStateModelId(ModelIdentifier id) {
		return !id.getVariant().equals("inventory");
	}

	private static class CollectionBasedConsumer<T> implements Consumer<T> {
		private Collection<T> collection;

		@Override
		public void accept(T t) {
			collection.add(t);
		}

		public void setCollection(Collection<T> collection) {
			this.collection = collection;
		}
	}
}

src/main/java/me/pepperbell/continuity/client/properties/TileAmountValidator.java
public interface TileAmountValidator<T extends BaseCTMProperties> {
	boolean validateTileAmount(int amount, T properties);

	static <T extends BaseCTMProperties> CTMPropertiesFactory<T> wrapFactory(CTMPropertiesFactory<T> factory, TileAmountValidator<T> validator) {
		return (properties, id, packName, packPriority, method) -> {
			T ctmProperties = factory.createProperties(properties, id, packName, packPriority, method);
			if (ctmProperties == null) {
				return null;
			}
			if (validator.validateTileAmount(ctmProperties.tiles.size(), ctmProperties)) {
				return ctmProperties;
			}
			return null;
		};
	}

	class Exactly<T extends BaseCTMProperties> implements TileAmountValidator<T> {
		protected final int targetAmount;

		public Exactly(int targetAmount) {
			this.targetAmount = targetAmount;
		}

		@Override
		public boolean validateTileAmount(int amount, T properties) {
			if (amount == targetAmount) {
				return true;
			}
			ContinuityClient.LOGGER.error("Method '" + properties.getMethod() + "' requires exactly " + targetAmount + " tiles but " + amount + " were provided in file '" + properties.getId() + "' in pack '" + properties.getPackName() + "'");
			return false;
		}
	}

	class AtLeast<T extends BaseCTMProperties> implements TileAmountValidator<T> {
		protected final int targetAmount;

		public AtLeast(int targetAmount) {
			this.targetAmount = targetAmount;
		}

		@Override
		public boolean validateTileAmount(int amount, T properties) {
			if (amount >= targetAmount) {
				return true;
			}
			ContinuityClient.LOGGER.error("Method '" + properties.getMethod() + "' requires at least " + targetAmount + " tiles but only " + amount + " were provided in file '" + properties.getId() + "' in pack '" + properties.getPackName() + "'");
			return false;
		}
	}

	class Repeat<T extends RepeatCTMProperties> implements TileAmountValidator<T> {
		@Override
		public boolean validateTileAmount(int amount, T properties) {
			int targetAmount = properties.getWidth() * properties.getHeight();
			if (amount == targetAmount) {
				return true;
			}
			ContinuityClient.LOGGER.error("Method '" + properties.getMethod() + "' requires exactly " + targetAmount + " tiles but " + amount + " were provided in file '" + properties.getId() + "' in pack '" + properties.getPackName() + "'");
			return false;
		}
	}
}

src/main/java/me/pepperbell/continuity/client/processor/HorizontalQuadProcessor.java
public class HorizontalQuadProcessor extends ConnectingQuadProcessor {
	// Indices for this array are formed from these bit values:
	// 1   *   2
	protected static final int[] SPRITE_INDEX_MAP = new int[] {
			3, 2, 0, 1,
	};

	public HorizontalQuadProcessor(Sprite[] sprites, ProcessingPredicate processingPredicate, ConnectionPredicate connectionPredicate) {
		super(sprites, processingPredicate, connectionPredicate);
	}

	@Override
	public ProcessingResult processQuadInner(MutableQuadView quad, Sprite sprite, BlockRenderView blockView, BlockState state, BlockPos pos, Supplier<Random> randomSupplier, int pass, int processorIndex, ProcessingContext context) {
		Direction[] directions = DirectionMaps.getDirections(quad);
		BlockPos.Mutable mutablePos = context.getData(ProcessingDataKeys.MUTABLE_POS_KEY);
		int connections = getConnections(directions, mutablePos, blockView, state, pos, quad.lightFace(), sprite);
		Sprite newSprite = sprites[SPRITE_INDEX_MAP[connections]];
		return SimpleQuadProcessor.process(quad, sprite, newSprite);
	}

	protected int getConnections(Direction[] directions, BlockPos.Mutable mutablePos, BlockRenderView blockView, BlockState state, BlockPos pos, Direction face, Sprite quadSprite) {
		mutablePos.set(pos);
		int connections = 0;
		for (int i = 0; i < 2; i++) {
			mutablePos.move(directions[i * 2]);
			if (connectionPredicate.shouldConnect(state, quadSprite, pos, mutablePos, face, blockView)) {
				connections |= 1 << i;
			}
			mutablePos.set(pos);
		}
		return connections;
	}

	public static class Factory extends AbstractQuadProcessorFactory<ConnectingCTMProperties> {
		@Override
		public QuadProcessor createProcessor(ConnectingCTMProperties properties, Sprite[] sprites) {
			return new HorizontalQuadProcessor(sprites, BaseProcessingPredicate.fromProperties(properties), properties.getConnectionPredicate());
		}

		@Override
		public int getTextureAmount(ConnectingCTMProperties properties) {
			return 4;
		}
	}
}

src/main/java/me/pepperbell/continuity/client/processor/overlay/StandardOverlayQuadProcessor.java
public class StandardOverlayQuadProcessor extends AbstractQuadProcessor {
	protected Set<Identifier> matchTilesSet;
	protected Predicate<BlockState> matchBlocksPredicate;
	protected Set<Identifier> connectTilesSet;
	protected Predicate<BlockState> connectBlocksPredicate;
	protected ConnectionPredicate connectionPredicate;

	protected int tintIndex;
	protected BlockState tintBlock;
	protected RenderMaterial material;

	public StandardOverlayQuadProcessor(Sprite[] sprites, ProcessingPredicate processingPredicate, Set<Identifier> matchTilesSet, Predicate<BlockState> matchBlocksPredicate, Set<Identifier> connectTilesSet, Predicate<BlockState> connectBlocksPredicate, ConnectionPredicate connectionPredicate, int tintIndex, BlockState tintBlock, BlendMode layer) {
		super(sprites, processingPredicate);
		this.matchTilesSet = matchTilesSet;
		this.matchBlocksPredicate = matchBlocksPredicate;
		this.connectTilesSet = connectTilesSet;
		this.connectBlocksPredicate = connectBlocksPredicate;
		this.connectionPredicate = connectionPredicate;

		this.tintIndex = tintIndex;
		this.tintBlock = tintBlock;
		material = RenderUtil.getMaterialFinder().blendMode(0, layer).find();
	}

	@Override
	public ProcessingResult processQuadInner(MutableQuadView quad, Sprite sprite, BlockRenderView blockView, BlockState state, BlockPos pos, Supplier<Random> randomSupplier, int pass, int processorIndex, ProcessingContext context) {
		Direction lightFace = quad.lightFace();
		OverlayRenderer renderer = getRenderer(blockView, pos, state, lightFace, sprite, DirectionMaps.getMap(lightFace)[0], context);
		if (renderer != null) {
			context.addEmitterConsumer(renderer);
		}
		return ProcessingResult.CONTINUE;
	}

	protected boolean appliesOverlay(BlockState other, BlockState state, Direction face, Sprite quadSprite, BlockPos pos, BlockRenderView blockView) {
		if (other.getBlock().hasDynamicBounds()) {
			return false;
		}
		if (!other.isFullCube(EmptyBlockView.INSTANCE, BlockPos.ORIGIN)) {
			return false;
		}
		if (connectBlocksPredicate != null) {
			if (!connectBlocksPredicate.test(other)) {
				return false;
			}
		}
		if (connectTilesSet != null) {
			if (!connectTilesSet.contains(SpriteCalculator.getSprite(other, face).getId())) {
				return false;
			}
		}
		return !connectionPredicate.shouldConnect(state, quadSprite, pos, other, face, blockView);
	}

	protected boolean hasSameOverlay(BlockState other, BlockState state, Direction face, Sprite quadSprite, BlockPos pos, BlockRenderView blockView) {
		if (matchBlocksPredicate != null) {
			if (!matchBlocksPredicate.test(other)) {
				return false;
			}
		}
		if (matchTilesSet != null) {
			if (!matchTilesSet.contains(SpriteCalculator.getSprite(other, face).getId())) {
				return false;
			}
		}
		return true;
	}

	protected void appliesOverlayUnobscured(Direction direction0, BlockStateAndBoolean blockStateAndBoolean, BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, BlockPos.Mutable mutablePos) {
		mutablePos.move(direction0);
		BlockState state0 = blockView.getBlockState(mutablePos);
		boolean bool = appliesOverlay(state0, state, lightFace, quadSprite, pos, blockView);
		if (bool) {
			mutablePos.move(lightFace);
			if (blockView.getBlockState(mutablePos).isOpaqueFullCube(blockView, mutablePos)) {
				bool = false;
			}
		}
		mutablePos.set(pos);
		blockStateAndBoolean.state = state0;
		blockStateAndBoolean.bool = bool;
	}

	protected boolean hasSameOverlayUnobscured(BlockState state0, Direction direction0, BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, BlockPos.Mutable mutablePos) {
		boolean s0 = hasSameOverlay(state0, state, lightFace, quadSprite, pos, blockView);
		if (s0) {
			mutablePos.move(direction0).move(lightFace);
			if (blockView.getBlockState(mutablePos).isOpaqueFullCube(blockView, mutablePos)) {
				s0 = false;
			}
			mutablePos.set(pos);
		}
		return s0;
	}

	protected boolean appliesOverlayCorner(Direction direction0, Direction direction1, BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, BlockPos.Mutable mutablePos) {
		mutablePos.move(direction0).move(direction1);
		boolean corner0 = appliesOverlay(blockView.getBlockState(mutablePos), state, lightFace, quadSprite, pos, blockView);
		if (corner0) {
			mutablePos.move(lightFace);
			if (blockView.getBlockState(mutablePos).isOpaqueFullCube(blockView, mutablePos)) {
				corner0 = false;
			}
		}
		mutablePos.set(pos);
		return corner0;
	}

	protected OverlayRenderer fromCorner(Direction direction0, Direction direction1, int sprite0, int sprite1, OverlayRenderer renderer, BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, BlockPos.Mutable mutablePos) {
		Sprite[] rendererSprites = prepareRenderer(renderer, lightFace, blockView, pos);
		mutablePos.move(direction0).move(direction1);
		if (appliesOverlay(blockView.getBlockState(mutablePos), state, lightFace, quadSprite, pos, blockView)) {
			mutablePos.move(lightFace);
			if (!blockView.getBlockState(mutablePos).isOpaqueFullCube(blockView, mutablePos)) {
				rendererSprites[1] = sprites[sprite1];
			}
		}
		rendererSprites[0] = sprites[sprite0];
		return renderer;
	}

	protected OverlayRenderer fromOneSide(BlockState state0, BlockState state1, BlockState state2, Direction direction0, Direction direction1, Direction direction2, int sprite0, int sprite1, int sprite2, OverlayRenderer renderer, BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, BlockPos.Mutable mutablePos) {
		boolean s0 = hasSameOverlayUnobscured(state0, direction0, blockView, pos, state, lightFace, quadSprite, mutablePos);
		boolean s1 = hasSameOverlayUnobscured(state1, direction1, blockView, pos, state, lightFace, quadSprite, mutablePos);
		boolean s2 = hasSameOverlayUnobscured(state2, direction2, blockView, pos, state, lightFace, quadSprite, mutablePos);

		Sprite[] rendererSprites = prepareRenderer(renderer, lightFace, blockView, pos);
		rendererSprites[0] = sprites[sprite0];
		if (s0 | s1) {
			if (appliesOverlayCorner(direction0, direction1, blockView, pos, state, lightFace, quadSprite, mutablePos)) {
				rendererSprites[1] = sprites[sprite1];
			}
		}
		if (s1 | s2) {
			if (appliesOverlayCorner(direction1, direction2, blockView, pos, state, lightFace, quadSprite, mutablePos)) {
				rendererSprites[2] = sprites[sprite2];
			}
		}
		return renderer;
	}

	protected static OverlayRenderer getRenderer(ProcessingDataProvider dataProvider) {
		return dataProvider.getData(ProcessingDataKeys.STANDARD_OVERLAY_RENDERER_POOL_KEY).getRenderer();
	}

	protected Sprite[] prepareRenderer(OverlayRenderer renderer, Direction face, BlockRenderView blockView, BlockPos pos) {
		return renderer.prepare(face, RenderUtil.getTintColor(tintBlock, blockView, pos, tintIndex), material);
	}

	protected OverlayRenderer prepareRenderer(OverlayRenderer renderer, Direction face, BlockRenderView blockView, BlockPos pos, int sprite1) {
		Sprite[] rendererSprites = prepareRenderer(renderer, face, blockView, pos);
		rendererSprites[0] = sprites[sprite1];
		return renderer;
	}

	protected OverlayRenderer prepareRenderer(OverlayRenderer renderer, Direction face, BlockRenderView blockView, BlockPos pos, int sprite1, int sprite2) {
		Sprite[] rendererSprites = prepareRenderer(renderer, face, blockView, pos);
		rendererSprites[0] = sprites[sprite1];
		rendererSprites[1] = sprites[sprite2];
		return renderer;
	}

	/*
	0:	D R (CORNER)
	1:	D
	2:	L D (CORNER)
	3:	D R
	4:	L D
	5:	L D R
	6:	L D T
	7:	R
	8:	L D R U
	9:	L
	10:	R U
	11:	L U
	12:	D R U
	13:	L R U
	14:	R U (CORNER)
	15:	U
	16:	L U (CORNER)
	 */
	protected OverlayRenderer getRenderer(BlockRenderView blockView, BlockPos pos, BlockState state, Direction lightFace, Sprite quadSprite, Direction[] directions, ProcessingDataProvider dataProvider) {
		BlockPos.Mutable mutablePos = dataProvider.getData(ProcessingDataKeys.MUTABLE_POS_KEY).set(pos);
		BlockStateAndBoolean blockStateAndBoolean = dataProvider.getData(ProcessingDataKeys.BLOCK_STATE_AND_BOOLEAN_KEY);

		//

		appliesOverlayUnobscured(directions[0], blockStateAndBoolean, blockView, pos, state, lightFace, quadSprite, mutablePos);
		BlockState state0 = blockStateAndBoolean.state;
		boolean left = blockStateAndBoolean.bool;
		appliesOverlayUnobscured(directions[1], blockStateAndBoolean, blockView, pos, state, lightFace, quadSprite, mutablePos);
		BlockState state1 = blockStateAndBoolean.state;
		boolean down = blockStateAndBoolean.bool;
		appliesOverlayUnobscured(directions[2], blockStateAndBoolean, blockView, pos, state, lightFace, quadSprite, mutablePos);
		BlockState state2 = blockStateAndBoolean.state;
		boolean right = blockStateAndBoolean.bool;
		appliesOverlayUnobscured(directions[3], blockStateAndBoolean, blockView, pos, state, lightFace, quadSprite, mutablePos);
		BlockState state3 = blockStateAndBoolean.state;
		boolean up = blockStateAndBoolean.bool;

		//

		if (left & down & right & up) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 8);
		}
		if (left & down & right) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 5);
		}
		if (left & down & up) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 6);
		}
		if (left & right & up) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 13);
		}
		if (down & right & up) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 12);
		}

		if (left & right) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 9, 7);
		}
		if (up & down) {
			return prepareRenderer(getRenderer(dataProvider), lightFace, blockView, pos, 15, 1);
		}

		if (left & down) {
			return fromCorner(directions[2], directions[3], 4, 14, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (down & right) {
			return fromCorner(directions[0], directions[3], 3, 16, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (right & up) {
			return fromCorner(directions[0], directions[1], 10, 2, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (up & left) {
			return fromCorner(directions[1], directions[2], 11, 0, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}

		//

		if (left) {
			return fromOneSide(state1, state2, state3, directions[1], directions[2], directions[3], 9, 0, 14, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (down) {
			return fromOneSide(state2, state3, state0, directions[2], directions[3], directions[0], 1, 14, 16, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (right) {
			return fromOneSide(state3, state0, state1, directions[3], directions[0], directions[1], 7, 16, 2, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (up) {
			return fromOneSide(state0, state1, state2, directions[0], directions[1], directions[2], 15, 2, 0, getRenderer(dataProvider), blockView, pos, state, lightFace, quadSprite, mutablePos);
		}

		//

		boolean s0 = hasSameOverlayUnobscured(state0, directions[0], blockView, pos, state, lightFace, quadSprite, mutablePos);
		boolean s1 = hasSameOverlayUnobscured(state1, directions[1], blockView, pos, state, lightFace, quadSprite, mutablePos);
		boolean s2 = hasSameOverlayUnobscured(state2, directions[2], blockView, pos, state, lightFace, quadSprite, mutablePos);
		boolean s3 = hasSameOverlayUnobscured(state3, directions[3], blockView, pos, state, lightFace, quadSprite, mutablePos);

		boolean corner0 = false;
		boolean corner1 = false;
		boolean corner2 = false;
		boolean corner3 = false;
		if (s0 | s1) {
			corner0 = appliesOverlayCorner(directions[0], directions[1], blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (s1 | s2) {
			corner1 = appliesOverlayCorner(directions[1], directions[2], blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (s2 | s3) {
			corner2 = appliesOverlayCorner(directions[2], directions[3], blockView, pos, state, lightFace, quadSprite, mutablePos);
		}
		if (s3 | s0) {
			corner3 = appliesOverlayCorner(directions[3], directions[0], blockView, pos, state, lightFace, quadSprite, mutablePos);
		}

		if (corner0 | corner1 | corner2 | corner3) {
			OverlayRenderer renderer = getRenderer(dataProvider);
			Sprite[] rendererSprites = prepareRenderer(renderer, lightFace, blockView, pos);
			if (corner0) {
				rendererSprites[0] = sprites[2];
			}
			if (corner1) {
				rendererSprites[1] = sprites[0];
			}
			if (corner2) {
				rendererSprites[2] = sprites[14];
			}
			if (corner3) {
				rendererSprites[3] = sprites[16];
			}
			return renderer;
		}

		//

		return null;
	}

	public static class BlockStateAndBoolean {
		public BlockState state;
		public boolean bool;
	}

	public static class OverlayRenderer implements Consumer<QuadEmitter> {
		protected static final Sprite[] EMPTY_SPRITES = new Sprite[4];

		protected Sprite[] sprites = new Sprite[4];
		protected Direction face;
		protected int color;
		protected RenderMaterial material;

		@Override
		public void accept(QuadEmitter emitter) {
			for (Sprite sprite : sprites) {
				if (sprite != null && !TextureUtil.isMissingSprite(sprite)) {
					QuadUtil.emitOverlayQuad(emitter, face, sprite, color, material);
				}
			}
		}

		public Sprite[] prepare(Direction face, int color, RenderMaterial material) {
			System.arraycopy(EMPTY_SPRITES, 0, sprites, 0, EMPTY_SPRITES.length);
			this.face = face;
			this.color = color;
			this.material = material;
			return sprites;
		}
	}

	public static class OverlayRendererPool {
		protected final List<OverlayRenderer> list = new ObjectArrayList<>();
		protected int nextIndex = 0;

		public OverlayRenderer getRenderer() {
			if (nextIndex >= list.size()) {
				list.add(new OverlayRenderer());
			}
			OverlayRenderer renderer = list.get(nextIndex);
			nextIndex++;
			return renderer;
		}

		public void reset() {
			nextIndex = 0;
		}
	}

	public static class Factory extends AbstractQuadProcessorFactory<StandardOverlayCTMProperties> {
		@Override
		public QuadProcessor createProcessor(StandardOverlayCTMProperties properties, Sprite[] sprites) {
			OverlayPropertiesSection overlaySection = properties.getOverlayPropertiesSection();
			return new StandardOverlayQuadProcessor(sprites, OverlayProcessingPredicate.fromProperties(properties), properties.getMatchTilesSet(), properties.getMatchBlocksPredicate(), properties.getConnectTilesSet(), properties.getConnectBlocksPredicate(), properties.getConnectionPredicate(), overlaySection.getTintIndex(), overlaySection.getTintBlock(), overlaySection.getLayer());
		}

		@Override
		public int getTextureAmount(StandardOverlayCTMProperties properties) {
			return 17;
		}

		@Override
		public boolean supportsNullSprites(StandardOverlayCTMProperties properties) {
			return false;
		}
	}
}

Answer: @Override

<think>
The ContinuityClient class opened earlier and defined static fields. After the import statements, the next logical code is to start implementing the required ClientModInitializer method. The first line of that implementation is the @Override annotation before the method signature.
</think>
@Override