idx int64 0 165k | question stringlengths 73 5.81k | target stringlengths 5 918 |
|---|---|---|
126,800 | private static Set < String > findPossibleCatchSignatures ( List < CatchInfo > infos , int pc ) { Set < String > catchTypes = new HashSet < > ( 6 ) ; ListIterator < CatchInfo > it = infos . listIterator ( infos . size ( ) ) ; while ( it . hasPrevious ( ) ) { CatchInfo ci = it . previous ( ) ; if ( ( pc >= ci . getStart... | returns an array of catch types that the current pc is in |
126,801 | private Map < String , Set < String > > getConstrainingInfo ( JavaClass cls , Method m ) throws ClassNotFoundException { String methodName = m . getName ( ) ; String methodSig = m . getSignature ( ) ; { JavaClass [ ] infClasses = cls . getInterfaces ( ) ; for ( JavaClass infCls : infClasses ) { Method infMethod = findM... | finds the super class or interface that constrains the types of exceptions that can be thrown from the given method |
126,802 | private static Method findMethod ( JavaClass cls , String methodName , String methodSig ) { Method [ ] methods = cls . getMethods ( ) ; for ( Method method : methods ) { if ( method . getName ( ) . equals ( methodName ) && method . getSignature ( ) . equals ( methodSig ) ) { return method ; } } return null ; } | finds a method that matches the name and signature in the given class |
126,803 | private Map < String , Set < String > > buildConstrainingInfo ( JavaClass cls , Method m ) throws ClassNotFoundException { Map < String , Set < String > > constraintInfo = new HashMap < > ( ) ; Set < String > exs = new HashSet < > ( ) ; ExceptionTable et = m . getExceptionTable ( ) ; if ( et != null ) { int [ ] indexTa... | returns exception names describing what exceptions are allowed to be thrown |
126,804 | public void visitCode ( Code obj ) { try { Method m = getMethod ( ) ; Type retType = m . getReturnType ( ) ; if ( "Ljava/lang/Boolean;" . equals ( retType . getSignature ( ) ) ) { stack . resetForMethodEntry ( this ) ; super . visitCode ( obj ) ; } } catch ( StopOpcodeParsingException e ) { } } | implements the visitor to filter out methods that don t return Boolean |
126,805 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( ( seen == Const . ARETURN ) && ( stack . getStackDepth ( ) > 0 ) ) { OpcodeStack . Item item = stack . getStackItem ( 0 ) ; if ( item . isNull ( ) ) { bugReporter . reportBug ( new BugInstance ( this , BugType . TBP_TRISTATE_BOOLEAN_PATTE... | implements the visitor to look for null returns |
126,806 | public void visitClassContext ( ClassContext clsContext ) { try { if ( ( collectionCls == null ) || ( setCls == null ) || ( mapCls == null ) ) { return ; } stack = new OpcodeStack ( ) ; super . visitClassContext ( clsContext ) ; } finally { stack = null ; } } | implement the visitor to set up the opcode stack and make sure that collection set and map classes could be loaded . |
126,807 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( ( seen == Const . INVOKEVIRTUAL ) || ( seen == Const . INVOKEINTERFACE ) ) { String clsName = getClassConstantOperand ( ) ; String methodName = getNameConstantOperand ( ) ; String signature = getSigConstantOperand ( ) ; if ( "add" . equal... | implements the visitor look for adds to sets or puts to maps where the element to be added is a collection . |
126,808 | private boolean lookupSwitchOnString ( ) { if ( stack . getStackDepth ( ) > 1 ) { OpcodeStack . Item item = stack . getStackItem ( 1 ) ; String stringRef = ( String ) item . getUserValue ( ) ; if ( stringRef == null ) { return false ; } if ( ! lookupSwitches . isEmpty ( ) ) { LookupDetails details = lookupSwitches . ge... | looks to see if the string used in a equals or compareTo is the same as that of a switch statement s switch on string . |
126,809 | public void visitMethod ( Method obj ) { stack . resetForMethodEntry ( this ) ; jdbcLocals . clear ( ) ; int [ ] parmRegs = RegisterUtils . getParameterRegisters ( obj ) ; Type [ ] argTypes = obj . getArgumentTypes ( ) ; for ( int t = 0 ; t < argTypes . length ; t ++ ) { String sig = argTypes [ t ] . getSignature ( ) ;... | implement the visitor to reset the opcode stack and set of locals that are jdbc objects |
126,810 | private static boolean fieldHasRuntimeVisibleAnnotation ( Field f ) { AnnotationEntry [ ] annotations = f . getAnnotationEntries ( ) ; if ( annotations != null ) { for ( AnnotationEntry annotation : annotations ) { if ( annotation . isRuntimeVisible ( ) ) { return true ; } } } return false ; } | looks to see the field has a runtime visible annotation if it does it might be autowired or some other mechanism attached that makes them less interesting for a toString call . |
126,811 | private void checkIDEGeneratedParmNames ( JavaClass cls ) { for ( Method m : cls . getMethods ( ) ) { if ( isIDEGeneratedMethodWithCode ( m ) ) { bugReporter . reportBug ( new BugInstance ( this , BugType . IMC_IMMATURE_CLASS_IDE_GENERATED_PARAMETER_NAMES . name ( ) , NORMAL_PRIORITY ) . addClass ( cls ) . addMethod ( ... | looks for methods that have it s parameters all follow the form arg0 arg1 arg2 or parm0 parm1 parm2 etc where the method actually has code in it |
126,812 | public void visitClassContext ( ClassContext classContext ) { try { ifStatements = new HashSet < > ( ) ; super . visitClassContext ( classContext ) ; } finally { ifStatements = null ; } } | implements the visitor to allocate and clear the ifStatements set |
126,813 | public void visitClassContext ( final ClassContext classContext ) { try { JavaClass cls = classContext . getJavaClass ( ) ; if ( ! cls . isFinal ( ) ) { stack = new OpcodeStack ( ) ; methodToCalledMethods = new HashMap < > ( ) ; super . visitClassContext ( classContext ) ; if ( ! methodToCalledMethods . isEmpty ( ) ) {... | implements the visitor to set up the stack and methodToCalledmethods map reports calls to public non final methods from methods called from constructors . |
126,814 | public void visitClassContext ( ClassContext classContext ) { try { stack = new OpcodeStack ( ) ; changedAttributes = new HashMap < > ( ) ; savedAttributes = new HashMap < > ( ) ; super . visitClassContext ( classContext ) ; } finally { stack = null ; changedAttributes = null ; savedAttributes = null ; } } | implements the visitor to setup the opcode stack and attribute maps |
126,815 | public void visitCode ( Code obj ) { stack . resetForMethodEntry ( this ) ; changedAttributes . clear ( ) ; savedAttributes . clear ( ) ; super . visitCode ( obj ) ; for ( Integer pc : changedAttributes . values ( ) ) { bugReporter . reportBug ( new BugInstance ( this , BugType . SCSS_SUSPICIOUS_CLUSTERED_SESSION_SUPPO... | implements the visitor to report on attributes that have changed without a setAttribute being called on them |
126,816 | public void visitMethod ( final Method obj ) { methodName = obj . getName ( ) ; if ( Values . STATIC_INITIALIZER . equals ( methodName ) || Values . CONSTRUCTOR . equals ( methodName ) ) { return ; } List < String > parms = SignatureUtils . getParameterSignatures ( obj . getSignature ( ) ) ; if ( ! parms . isEmpty ( ) ... | overrides the visitor capture source lines for the method |
126,817 | private String [ ] getSourceLines ( Method obj ) { if ( srcInited ) { return sourceLines ; } try { srcLineAnnotation = SourceLineAnnotation . forEntireMethod ( getClassContext ( ) . getJavaClass ( ) , obj ) ; if ( srcLineAnnotation != null ) { SourceFinder sourceFinder = AnalysisContext . currentAnalysisContext ( ) . g... | reads the sourcefile based on the source line annotation for the method |
126,818 | public void visitCode ( final Code obj ) { if ( sourceLines == null ) { return ; } if ( isAbstract ) { return ; } if ( Values . STATIC_INITIALIZER . equals ( methodName ) || Values . CONSTRUCTOR . equals ( methodName ) ) { return ; } int methodStart = srcLineAnnotation . getStartLine ( ) - 2 ; int methodLine = methodSt... | overrides the visitor to find the source lines for the method header to find non final parameters |
126,819 | public void sawOpcode ( final int seen ) { if ( OpcodeUtils . isAStore ( seen ) ) { changedParms . set ( RegisterUtils . getAStoreReg ( this , seen ) ) ; } } | overrides the visitor to find local variable reference stores to store them as changed |
126,820 | private static String getRegisterName ( final Code obj , final int reg ) { LocalVariableTable lvt = obj . getLocalVariableTable ( ) ; if ( lvt != null ) { LocalVariable lv = lvt . getLocalVariable ( reg , 0 ) ; if ( lv != null ) { return lv . getName ( ) ; } } return String . valueOf ( reg ) ; } | returns the variable name of the specified register slot |
126,821 | public void visitClassContext ( ClassContext classContext ) { try { stack = new OpcodeStack ( ) ; registerConstants = new HashMap < > ( ) ; overloadedMethods = collectOverloadedMethods ( classContext . getJavaClass ( ) ) ; super . visitClassContext ( classContext ) ; } finally { stack = null ; registerConstants = null ... | implements the visitor to collect all methods that are overloads . These methods should be ignored as you may differentiate Const based on parameter type or value . |
126,822 | public void visitCode ( Code obj ) { Method m = getMethod ( ) ; if ( overloadedMethods . contains ( m ) ) { return ; } int aFlags = m . getAccessFlags ( ) ; if ( ( ( ( aFlags & Const . ACC_PRIVATE ) != 0 ) || ( ( aFlags & Const . ACC_STATIC ) != 0 ) ) && ( ( aFlags & Const . ACC_SYNTHETIC ) == 0 ) && ( ! m . getSignatu... | implements the visitor to reset the stack and proceed for private methods |
126,823 | public void visitMethod ( Method obj ) { firstLocalRegister = SignatureUtils . getFirstRegisterSlot ( obj ) ; super . visitMethod ( obj ) ; } | overrides the visitor to see what how many register slots are taken by parameters . |
126,824 | public void sawOpcode ( int seen ) { if ( seen == Const . PUTFIELD ) { OpcodeStack stack = getStack ( ) ; if ( stack . getStackDepth ( ) > 0 ) { int reg = stack . getStackItem ( 0 ) . getRegisterNumber ( ) ; if ( ( reg >= 0 ) && ( reg < firstLocalRegister ) ) { clearSpecialField ( getNameConstantOperand ( ) ) ; } } } s... | overrides the visitor to look for PUTFIELDS of collections |
126,825 | protected boolean doesStaticFactoryReturnNeedToBeWatched ( String clsName , String methodName , String signature ) { return collectionFactoryMethods . contains ( new FQMethod ( clsName , methodName , signature ) ) ; } | implements the MissingMethodsDetector to determine whether this factory - like method returns a collection |
126,826 | public void visitClassContext ( ClassContext classContext ) { JavaClass cls = classContext . getJavaClass ( ) ; cls . accept ( this ) ; } | implements the visitor to accept the class for visiting |
126,827 | public void visitMethod ( Method obj ) { Attribute [ ] attributes = obj . getAttributes ( ) ; for ( Attribute a : attributes ) { if ( "Signature" . equals ( a . getName ( ) ) ) { TemplateSignature ts = parseSignatureAttribute ( ( Signature ) a ) ; if ( ts != null ) { for ( TemplateItem templateParm : ts . templateParam... | implements the visitor to find methods that declare template parameters that are not bound to any parameter . |
126,828 | private boolean isTemplateParent ( String templateType , TemplateItem ... items ) { for ( TemplateItem item : items ) { if ( templateType . equals ( item . templateExtension ) ) { return true ; } } return false ; } | looks to see if this templateType is a parent of another template type |
126,829 | private static TemplateSignature parseSignatureAttribute ( Signature signatureAttribute ) { Matcher m = TEMPLATED_SIGNATURE . matcher ( signatureAttribute . getSignature ( ) ) ; if ( ! m . matches ( ) ) { return null ; } TemplateSignature ts = new TemplateSignature ( ) ; ts . signature = m . group ( 2 ) ; m = TEMPLATE ... | builds a template signature object based on the signature attribute of the method |
126,830 | public void visitClassContext ( ClassContext classContext ) { try { stack = new OpcodeStack ( ) ; mapBugs = new ArrayList < > ( ) ; setBugs = new ArrayList < > ( ) ; hasMapComparator = false ; hasSetComparator = false ; super . visitClassContext ( classContext ) ; if ( ! hasMapComparator ) { for ( BugInstance bi : mapB... | implement the visitor to report bugs if no Tree comparators were found |
126,831 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( seen == Const . INVOKEINTERFACE ) { processInvokeInterface ( ) ; } else if ( seen == Const . INVOKESPECIAL ) { processInvokeSpecial ( ) ; } } finally { stack . sawOpcode ( this , seen ) ; } } | implements the visitor to find accesses to maps sets and lists using arrays |
126,832 | public void visitMethod ( final Method obj ) { if ( obj . isSynthetic ( ) ) { return ; } ExceptionTable et = obj . getExceptionTable ( ) ; if ( et != null ) { String [ ] exNames = et . getExceptionNames ( ) ; Set < String > methodRTExceptions = new HashSet < > ( 6 ) ; int priority = LOW_PRIORITY ; boolean foundRuntime ... | overrides the visitor to find declared runtime exceptions |
126,833 | public static void post ( OpcodeStack stack , int opcode ) { if ( ! sawGOTO || ( opcode == Const . GOTO ) || ( opcode == Const . GOTO_W ) ) { return ; } int depth = stack . getStackDepth ( ) ; for ( int i = 0 ; i < depth && i < userValues . size ( ) ; i ++ ) { OpcodeStack . Item item = stack . getStackItem ( i ) ; if (... | called after the execution of the parent OpcodeStack . sawOpcode to restore the user values after the GOTO or GOTO_W s mergeJumps were processed |
126,834 | public void visitCode ( Code obj ) { try { userValues = new HashMap < > ( ) ; super . visitCode ( obj ) ; } finally { userValues = null ; } } | implements the visitor to reset the uservalues |
126,835 | public void visitClassContext ( ClassContext context ) { try { JavaClass cls = context . getJavaClass ( ) ; if ( ! cls . isEnum ( ) && ( cls . getMajor ( ) >= Const . MAJOR_1_5 ) ) { Method [ ] methods = cls . getMethods ( ) ; for ( Method m : methods ) { if ( Values . CONSTRUCTOR . equals ( m . getName ( ) ) && ! m . ... | implements the visitor to look for classes compiled with 1 . 5 or better that have all constructors that are private |
126,836 | public void visitField ( Field obj ) { if ( obj . isStatic ( ) && obj . isPublic ( ) && obj . isFinal ( ) ) { JavaClass cls = getClassContext ( ) . getJavaClass ( ) ; if ( ! obj . isEnum ( ) ) { String fieldClass = obj . getSignature ( ) ; if ( fieldClass . startsWith ( Values . SIG_QUALIFIED_CLASS_PREFIX ) ) { fieldCl... | implements the visitor to look for fields that are public static final and are the same type as the owning class . it collects these object names for later |
126,837 | public void visitCode ( Code obj ) { if ( Values . STATIC_INITIALIZER . equals ( getMethod ( ) . getName ( ) ) ) { state = State . SAW_NOTHING ; super . visitCode ( obj ) ; } } | implements the visitor to look for static initializers to find enum generation |
126,838 | public void sawOpcode ( int seen ) { if ( state == State . SAW_NOTHING ) { if ( seen == Const . INVOKESPECIAL ) { state = State . SAW_INVOKESPECIAL ; } } else if ( state == State . SAW_INVOKESPECIAL ) { handleInvokeSpecialState ( seen ) ; } } | implements the visitor to find allocations of TypesafeEnum Const |
126,839 | public void visitClassContext ( ClassContext classContext ) { try { JavaClass cls = classContext . getJavaClass ( ) ; constrainingMethods = buildConstrainingMethods ( cls ) ; AnnotationEntry [ ] annotations = cls . getAnnotationEntries ( ) ; classHasAnnotation = ! CollectionUtils . isEmpty ( annotations ) ; stack = new... | implements the visitor to collect statistics on this class |
126,840 | private boolean isFirstUse ( int reg ) { LocalVariableTable lvt = getMethod ( ) . getLocalVariableTable ( ) ; if ( lvt == null ) { return true ; } LocalVariable lv = lvt . getLocalVariable ( reg , getPC ( ) ) ; return lv == null ; } | looks to see if this register has already in scope or whether is a new assignment . return true if it s a new assignment . If you can t tell return true anyway . might want to change . |
126,841 | public void visitClassContext ( ClassContext clsContext ) { try { JavaClass cls = clsContext . getJavaClass ( ) ; String superName = cls . getSuperclassName ( ) ; if ( ! Values . DOTTED_JAVA_LANG_OBJECT . equals ( superName ) ) { this . classContext = clsContext ; superclassCode = new HashMap < > ( ) ; JavaClass superC... | overrides the visitor to accept classes derived from non java . lang . Object classes . |
126,842 | public void visitCode ( Code obj ) { try { Method m = getMethod ( ) ; if ( ( ! m . isPublic ( ) && ! m . isProtected ( ) ) || m . isAbstract ( ) || m . isSynthetic ( ) ) { return ; } CodeInfo superCode = superclassCode . remove ( curMethodInfo ) ; if ( superCode != null ) { if ( sameAccess ( getMethod ( ) . getAccessFl... | overrides the visitor to find code blocks of methods that are the same as its parents |
126,843 | public void sawOpcode ( int seen ) { if ( ! sawAload0 ) { if ( seen == Const . ALOAD_0 ) { sawAload0 = true ; } else { throw new StopOpcodeParsingException ( ) ; } } else if ( nextParmIndex < parmTypes . length ) { if ( isExpectedParmInstruction ( seen , nextParmOffset , parmTypes [ nextParmIndex ] ) ) { nextParmOffset... | overrides the visitor to look for an exact call to the parent class s method using this methods parm . |
126,844 | private static boolean sameAccess ( int parentAccess , int childAccess ) { return ( ( parentAccess & ( Const . ACC_PUBLIC | Const . ACC_PROTECTED ) ) == ( childAccess & ( Const . ACC_PUBLIC | Const . ACC_PROTECTED ) ) ) ; } | determines if two access flags contain the same access modifiers |
126,845 | public void visitMethod ( Method obj ) { Code c = obj . getCode ( ) ; if ( c != null ) { byte [ ] opcodes = c . getCode ( ) ; if ( opcodes != null ) { trPCPos = opcodes . length - 1 ; if ( ! obj . getSignature ( ) . endsWith ( Values . SIG_VOID ) ) { trPCPos -= 1 ; } trPCPos -= TAILRECURSIONFUDGE ; possibleTailRecursio... | implements the visitor to figure the pc where the method call must occur depending on whether the method returns a value or not . |
126,846 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( seen == Const . INVOKEVIRTUAL ) { checkForTailRecursion ( ) ; } } finally { stack . sawOpcode ( this , seen ) ; } } | implements the visitor to find methods that employ tail recursion |
126,847 | public void sawOpcode ( int seen ) { if ( seen == Const . INVOKEVIRTUAL ) { String className = getClassConstantOperand ( ) ; String methodName = getNameConstantOperand ( ) ; String methodSig = getSigConstantOperand ( ) ; FQMethod methodInfo = new FQMethod ( className , methodName , methodSig ) ; if ( oldMethods . conta... | implements the visitor to look for method calls that are one of the old pre - collections1 . 2 set of methods |
126,848 | public void visitClassContext ( ClassContext classContext ) { try { stack = new OpcodeStack ( ) ; nodeCreations = new HashMap < > ( ) ; nodeStores = new HashMap < > ( ) ; super . visitClassContext ( classContext ) ; } finally { stack = null ; nodeCreations = null ; nodeStores = null ; } } | implements the visitor to create and clear the stack node creations and store maps |
126,849 | public void visitCode ( Code obj ) { stack . resetForMethodEntry ( this ) ; nodeCreations . clear ( ) ; nodeStores . clear ( ) ; super . visitCode ( obj ) ; BitSet reportedPCs = new BitSet ( ) ; for ( Integer pc : nodeCreations . values ( ) ) { if ( ! reportedPCs . get ( pc . intValue ( ) ) ) { bugReporter . reportBug ... | implements the visitor to clear the opcode stack for the next code |
126,850 | private Integer findDOMNodeCreationPoint ( int index ) { if ( stack . getStackDepth ( ) <= index ) { return null ; } return nodeCreations . remove ( stack . getStackItem ( index ) ) ; } | returns the pc where this DOM Node was created or null if this isn t a DOM node that was created |
126,851 | public void visitClassContext ( ClassContext classContext ) { try { JavaClass cls = classContext . getJavaClass ( ) ; if ( cls . isAbstract ( ) ) { interfaceMethods = collectInterfaceMethods ( cls ) ; super . visitClassContext ( classContext ) ; } } catch ( ClassNotFoundException cnfe ) { bugReporter . reportMissingCla... | overrides the visitor to check for abstract classes . |
126,852 | public void visitCode ( Code obj ) { if ( Values . CONSTRUCTOR . equals ( methodName ) || Values . STATIC_INITIALIZER . equals ( methodName ) ) { return ; } Method m = getMethod ( ) ; if ( m . isSynthetic ( ) ) { return ; } if ( ! interfaceMethods . contains ( new QMethod ( methodName , m . getSignature ( ) ) ) ) { sup... | overrides the visitor to filter out constructors . |
126,853 | public void sawOpcode ( int seen ) { try { switch ( state ) { case SAW_NOTHING : if ( seen == Const . RETURN ) { bugReporter . reportBug ( new BugInstance ( this , BugType . ACEM_ABSTRACT_CLASS_EMPTY_METHODS . name ( ) , NORMAL_PRIORITY ) . addClass ( this ) . addMethod ( this ) . addSourceLine ( this ) ) ; state = Sta... | overrides the visitor to look for empty methods or simple exception throwers . |
126,854 | private boolean prescreen ( Method method ) { BitSet bytecodeSet = getClassContext ( ) . getBytecodeSet ( method ) ; return ( bytecodeSet != null ) && bytecodeSet . intersects ( arrayLoadOps ) ; } | looks for methods that contain array load opcodes |
126,855 | private static boolean similarArrayInstructions ( int load , int store ) { return ( ( load == Const . AALOAD ) && ( store == Const . AASTORE ) ) || ( ( load == Const . IALOAD ) && ( store == Const . IASTORE ) ) || ( ( load == Const . DALOAD ) && ( store == Const . DASTORE ) ) || ( ( load == Const . LALOAD ) && ( store ... | looks to see if a load and store operation are working on the same type of array |
126,856 | public void visitCode ( Code obj ) { try { possibleParmRegs . clear ( ) ; Method m = getMethod ( ) ; String methodSignature = m . getSignature ( ) ; String retSignature = SignatureUtils . getReturnSignature ( methodSignature ) ; JavaClass returnClass = null ; int [ ] parmRegs = null ; if ( retSignature . startsWith ( V... | implements the visitor to look for any non - immutable typed parameters are assignable to the return type . If found the method is parsed . |
126,857 | public static boolean isListSetMap ( String clsName ) throws ClassNotFoundException { JavaClass cls = Repository . lookupClass ( clsName ) ; return ( cls . implementationOf ( LIST_CLASS ) || cls . implementationOf ( SET_CLASS ) || cls . implementationOf ( MAP_CLASS ) ) ; } | determines if the current class name is derived from List Set or Map |
126,858 | private boolean prescreen ( Method method ) { BitSet bytecodeSet = getClassContext ( ) . getBytecodeSet ( method ) ; return ( bytecodeSet != null ) && ( bytecodeSet . get ( Const . CHECKCAST ) ) ; } | looks for methods that contain a checkcast instruction |
126,859 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( ( seen == Const . CHECKCAST ) && ( stack . getStackDepth ( ) > 0 ) ) { OpcodeStack . Item item = stack . getStackItem ( 0 ) ; if ( item . getRegisterNumber ( ) == 1 ) { String thisCls = getClassName ( ) ; String equalsCls = getClassConsta... | implements the visitor to look for checkcasts of the parameter to other types and enter instances in a map for further processing in doReport . |
126,860 | public void report ( ) { for ( Map . Entry < String , Map < String , BugInstance > > thisEntry : possibleBugs . entrySet ( ) ) { Map < String , BugInstance > equalsClassesMap = thisEntry . getValue ( ) ; for ( Map . Entry < String , BugInstance > equalsEntry : equalsClassesMap . entrySet ( ) ) { String equalsCls = equa... | reports all the collected issues from the parse of this class |
126,861 | public void visitClassContext ( ClassContext classContext ) { try { ignoreRegs = new BitSet ( ) ; tryBlocks = new BitSet ( ) ; catchHandlers = new BitSet ( ) ; switchTargets = new BitSet ( ) ; monitorSyncPCs = new ArrayList < > ( 5 ) ; stack = new OpcodeStack ( ) ; super . visitClassContext ( classContext ) ; } finally... | implements the visitor to create and the clear the register to location map |
126,862 | public void visitCode ( Code obj ) { try { ignoreRegs . clear ( ) ; Method method = getMethod ( ) ; if ( ! method . isStatic ( ) ) { ignoreRegs . set ( 0 ) ; } int [ ] parmRegs = RegisterUtils . getParameterRegisters ( method ) ; for ( int parm : parmRegs ) { ignoreRegs . set ( parm ) ; } rootScopeBlock = new ScopeBloc... | implements the visitor to reset the register to location map |
126,863 | public void sawOpcode ( int seen ) { UserObject uo = null ; try { stack . precomputation ( this ) ; int pc = getPC ( ) ; if ( tryBlocks . get ( pc ) ) { ScopeBlock sb = new ScopeBlock ( pc , findCatchHandlerFor ( pc ) ) ; sb . setTry ( ) ; rootScopeBlock . addChild ( sb ) ; } if ( OpcodeUtils . isStore ( seen ) ) { saw... | implements the visitor to look for variables assigned below the scope in which they are used . |
126,864 | private void sawStore ( int seen , int pc ) { int reg = RegisterUtils . getStoreReg ( this , seen ) ; if ( catchHandlers . get ( pc ) ) { ignoreRegs . set ( reg ) ; ScopeBlock catchSB = findScopeBlock ( rootScopeBlock , pc + 1 ) ; if ( ( catchSB != null ) && ( catchSB . getStart ( ) < pc ) ) { ScopeBlock sb = new Scope... | processes a register store by updating the appropriate scope block to mark this register as being stored in the block |
126,865 | private void sawIINC ( int pc ) { int reg = getRegisterOperand ( ) ; if ( ! ignoreRegs . get ( reg ) ) { ScopeBlock sb = findScopeBlock ( rootScopeBlock , pc ) ; if ( sb != null ) { sb . addLoad ( reg , pc ) ; } else { ignoreRegs . set ( reg ) ; } } if ( catchHandlers . get ( pc ) ) { ignoreRegs . set ( reg ) ; } else ... | processes a register IINC by updating the appropriate scope block to mark this register as being stored in the block |
126,866 | private void sawLoad ( int seen , int pc ) { int reg = RegisterUtils . getLoadReg ( this , seen ) ; if ( ! ignoreRegs . get ( reg ) ) { ScopeBlock sb = findScopeBlock ( rootScopeBlock , pc ) ; if ( sb != null ) { sb . addLoad ( reg , pc ) ; } else { ignoreRegs . set ( reg ) ; } } } | processes a register store by updating the appropriate scope block to mark this register as being read in the block |
126,867 | private void sawBranch ( int seen , int pc ) { int target = getBranchTarget ( ) ; if ( target > pc ) { if ( ( seen == Const . GOTO ) || ( seen == Const . GOTO_W ) ) { int nextPC = getNextPC ( ) ; if ( ! switchTargets . get ( nextPC ) ) { ScopeBlock sb = findScopeBlockWithTarget ( rootScopeBlock , pc , nextPC ) ; if ( s... | creates a scope block to describe this branch location . |
126,868 | private void sawSwitch ( int pc ) { int [ ] offsets = getSwitchOffsets ( ) ; List < Integer > targets = new ArrayList < > ( offsets . length ) ; for ( int offset : offsets ) { targets . add ( Integer . valueOf ( offset + pc ) ) ; } Integer defOffset = Integer . valueOf ( getDefaultSwitchOffset ( ) + pc ) ; if ( ! targe... | creates a new scope block for each case statement |
126,869 | private UserObject sawStaticCall ( ) { if ( getSigConstantOperand ( ) . endsWith ( Values . SIG_VOID ) ) { return null ; } return new UserObject ( isRiskyMethodCall ( ) ) ; } | processes a static call or initializer by checking to see if the call is risky and returning a OpcodeStack item user value saying so . |
126,870 | private void sawMonitorEnter ( int pc ) { monitorSyncPCs . add ( Integer . valueOf ( pc ) ) ; ScopeBlock sb = new ScopeBlock ( pc , Integer . MAX_VALUE ) ; sb . setSync ( ) ; rootScopeBlock . addChild ( sb ) ; } | processes a monitor enter call to create a scope block |
126,871 | private void sawMonitorExit ( int pc ) { if ( ! monitorSyncPCs . isEmpty ( ) ) { ScopeBlock sb = findSynchronizedScopeBlock ( rootScopeBlock , monitorSyncPCs . get ( 0 ) . intValue ( ) ) ; if ( sb != null ) { sb . setFinish ( pc ) ; } monitorSyncPCs . remove ( monitorSyncPCs . size ( ) - 1 ) ; } } | processes a monitor exit to set the end of the already created scope block |
126,872 | private Comparable < ? > getCallingObject ( ) { String sig = getSigConstantOperand ( ) ; if ( Values . SIG_VOID . equals ( SignatureUtils . getReturnSignature ( sig ) ) ) { return null ; } int numParameters = SignatureUtils . getNumParameters ( sig ) ; if ( stack . getStackDepth ( ) <= numParameters ) { return null ; }... | returns either a register number of a field reference of the object that a method is being called on or null if it can t be determined . |
126,873 | private ScopeBlock findScopeBlock ( ScopeBlock sb , int pc ) { if ( ( pc <= sb . getStart ( ) ) || ( pc >= sb . getFinish ( ) ) ) { return null ; } List < ScopeBlock > children = sb . getChildren ( ) ; if ( children != null ) { for ( ScopeBlock child : children ) { ScopeBlock foundSb = findScopeBlock ( child , pc ) ; i... | returns the scope block in which this register was assigned by traversing the scope block tree |
126,874 | private ScopeBlock findScopeBlockWithTarget ( ScopeBlock sb , int start , int target ) { ScopeBlock parentBlock = null ; int finishLocation = sb . getFinish ( ) ; if ( ( sb . getStart ( ) < start ) && ( finishLocation >= start ) && ( ( finishLocation <= target ) || ( sb . isGoto ( ) && ! sb . isLoop ( ) ) ) ) { parentB... | returns an existing scope block that has the same target as the one looked for |
126,875 | private ScopeBlock findPreviousSiblingScopeBlock ( ScopeBlock sb ) { ScopeBlock parent = sb . getParent ( ) ; if ( parent == null ) { return null ; } List < ScopeBlock > children = parent . getChildren ( ) ; if ( children == null ) { return null ; } ScopeBlock lastSibling = null ; for ( ScopeBlock sibling : children ) ... | looks for the ScopeBlock has the same parent as this given one but precedes it in the list . |
126,876 | private ScopeBlock findSynchronizedScopeBlock ( ScopeBlock sb , int monitorEnterPC ) { ScopeBlock monitorBlock = sb ; if ( sb . hasChildren ( ) ) { for ( ScopeBlock child : sb . getChildren ( ) ) { if ( child . isSync ( ) && ( child . getStart ( ) > monitorBlock . getStart ( ) ) ) { monitorBlock = child ; monitorBlock ... | finds the scope block that is the active synchronized block |
126,877 | private int findCatchHandlerFor ( int pc ) { CodeException [ ] exceptions = getMethod ( ) . getCode ( ) . getExceptionTable ( ) ; if ( exceptions != null ) { for ( CodeException ex : exceptions ) { if ( ex . getStartPC ( ) == pc ) { return ex . getHandlerPC ( ) ; } } } return - 1 ; } | returns the catch handler for a given try block |
126,878 | public void visitClassContext ( ClassContext classContext ) { if ( cloneableClass == null ) { return ; } try { JavaClass cls = classContext . getJavaClass ( ) ; if ( cls . implementationOf ( cloneableClass ) ) { stack = new OpcodeStack ( ) ; super . visitClassContext ( classContext ) ; } } catch ( ClassNotFoundExceptio... | override the visitor to look for classes that implement Cloneable |
126,879 | public void visitCode ( Code obj ) { Method m = getMethod ( ) ; if ( ! m . isStatic ( ) && "clone" . equals ( m . getName ( ) ) && SIG_VOID_TO_OBJECT . equals ( m . getSignature ( ) ) ) { super . visitCode ( obj ) ; } } | override the visitor to only continue for the clone method |
126,880 | public void sawOpcode ( int seen ) { boolean srcField = false ; try { stack . precomputation ( this ) ; switch ( seen ) { case Const . ALOAD_0 : srcField = true ; break ; case Const . DUP : if ( stack . getStackDepth ( ) > 0 ) { OpcodeStack . Item item = stack . getStackItem ( 0 ) ; if ( item . getUserValue ( ) != null... | override the visitor to look for stores to member fields of the source object on a clone |
126,881 | public void visitClassContext ( ClassContext classContext ) { try { queryLocations = new ArrayList < > ( ) ; loops = new ArrayList < > ( ) ; super . visitClassContext ( classContext ) ; } finally { queryLocations = null ; loops = null ; } } | implements the visitor to create and clear the query locations and loops collections |
126,882 | public void visitCode ( Code obj ) { queryLocations . clear ( ) ; loops . clear ( ) ; super . visitCode ( obj ) ; for ( Integer qLoc : queryLocations ) { for ( LoopLocation lLoc : loops ) { if ( lLoc . isInLoop ( qLoc . intValue ( ) ) ) { bugReporter . reportBug ( new BugInstance ( this , BugType . SIL_SQL_IN_LOOP . na... | implements the visitor to clear the collections and report the query locations that are in loops |
126,883 | public void sawOpcode ( int seen ) { if ( seen == Const . INVOKEINTERFACE ) { String clsName = getClassConstantOperand ( ) ; String methodName = getNameConstantOperand ( ) ; if ( queryClasses . contains ( clsName ) && queryMethods . contains ( methodName ) ) { queryLocations . add ( Integer . valueOf ( getPC ( ) ) ) ; ... | implements the visitor to collect positions of queries and loops |
126,884 | public void visitCode ( Code obj ) { Method m = getMethod ( ) ; if ( prescreen ( m ) ) { stack . resetForMethodEntry ( this ) ; popStack . clear ( ) ; super . visitCode ( obj ) ; } } | implement the visitor to reset the stack |
126,885 | private void processMethodCall ( ) { int numParams = SignatureUtils . getNumParameters ( getSigConstantOperand ( ) ) ; int depth = stack . getStackDepth ( ) ; for ( int i = 0 ; i < numParams ; i ++ ) { if ( depth > i ) { OpcodeStack . Item item = stack . getStackItem ( i ) ; XField xf = item . getXField ( ) ; if ( xf !... | parses all the parameters of a called method and removes any of the parameters that are maps currently being looked at for this detector |
126,886 | public void visitCode ( Code obj ) { state = State . SAW_NOTHING ; lvt = obj . getLocalVariableTable ( ) ; if ( ( lvt != null ) && prescreen ( getMethod ( ) ) ) { super . visitCode ( obj ) ; } } | implements the visitor to set the state on entry of the code block to SAW_NOTHING and to see if there is a local variable table |
126,887 | public void sawOpcode ( int seen ) { switch ( state ) { case SAW_NOTHING : if ( seen == Const . CHECKCAST ) { castClass = getClassConstantOperand ( ) ; state = State . SAW_CHECKCAST ; } else if ( seen == Const . INVOKEINTERFACE ) { String clsName = getClassConstantOperand ( ) ; String methodName = getNameConstantOperan... | implements the visitor to look for a checkcast followed by a astore where the types of the objects are different . |
126,888 | public static void clearAssumptions ( Map < Integer , Integer > assumptionTill , int pc ) { Iterator < Integer > it = assumptionTill . values ( ) . iterator ( ) ; while ( it . hasNext ( ) ) { if ( it . next ( ) . intValue ( ) <= pc ) { it . remove ( ) ; } } } | the map is keyed by register and value by when an assumption holds to a byte offset if we have passed when the assumption holds clear the item from the map |
126,889 | public void clearBranchTargets ( int pc ) { Iterator < Integer > it = branchTargets . iterator ( ) ; while ( it . hasNext ( ) ) { int target = it . next ( ) . intValue ( ) ; if ( target <= pc ) { it . remove ( ) ; } } } | remove branch targets that have been passed |
126,890 | public void sawOpcode ( int seen ) { try { stack . precomputation ( this ) ; if ( seen == Const . INVOKEINTERFACE ) { KeyType type = isKeyAccessMethod ( seen ) ; if ( type != null ) { int numParms = SignatureUtils . getNumParameters ( getSigConstantOperand ( ) ) ; if ( stack . getStackDepth ( ) >= numParms ) { OpcodeSt... | implements the visitor to look for calls to HttpServletRequest . getParameter and collect what the name of the key is . |
126,891 | public void report ( ) { for ( Map . Entry < KeyType , Map < String , Map < String , List < SourceInfo > > > > entry : parmInfo . entrySet ( ) ) { KeyType type = entry . getKey ( ) ; Map < String , Map < String , List < SourceInfo > > > typeMap = entry . getValue ( ) ; for ( Map < String , List < SourceInfo > > parmCas... | implements the visitor to look for the collected parm names and look for duplicates that are different in casing only . |
126,892 | public void visitClassContext ( ClassContext classContext ) { try { branchTargets = new BitSet ( ) ; catchTargets = new BitSet ( ) ; stack = new OpcodeStack ( ) ; super . visitClassContext ( classContext ) ; } finally { branchTargets = null ; catchTargets = null ; stack = null ; } } | implements the visitor to create and clear the branchTargets |
126,893 | public void visitCode ( Code obj ) { Method m = getMethod ( ) ; String sig = m . getSignature ( ) ; if ( ! Values . SIG_VOID . equals ( SignatureUtils . getReturnSignature ( sig ) ) ) { state = State . SEEN_NOTHING ; branchTargets . clear ( ) ; CodeException [ ] ces = obj . getExceptionTable ( ) ; catchTargets . clear ... | implements the visitor to make sure method returns a value and then clears the targets |
126,894 | public void sawOpcode ( int seen ) { int lhsReg = - 1 ; try { stack . precomputation ( this ) ; switch ( state ) { case SEEN_NOTHING : if ( ! catchTargets . get ( getPC ( ) ) && lookForStore ( seen ) && ( stack . getStackDepth ( ) >= 1 ) ) { OpcodeStack . Item item = stack . getStackItem ( 0 ) ; Integer reg = ( Integer... | implements the visitor to look for store of registers immediately before returns of that register |
126,895 | private boolean lookForStore ( int seen ) { if ( ! OpcodeUtils . isStore ( seen ) ) { return false ; } storeReg = RegisterUtils . getStoreReg ( this , seen ) ; return true ; } | checks if the current opcode is a store if so saves the register |
126,896 | private boolean lookForLoad ( int seen ) { int loadReg ; if ( ! OpcodeUtils . isLoad ( seen ) ) { return false ; } loadReg = RegisterUtils . getLoadReg ( this , seen ) ; return ( storeReg == loadReg ) ; } | looks for a load of the register that was just stored |
126,897 | public void visitCode ( Code obj ) { try { String signature = SignatureUtils . getReturnSignature ( getMethod ( ) . getSignature ( ) ) ; if ( signature . startsWith ( Values . SIG_QUALIFIED_CLASS_PREFIX ) && CollectionUtils . isListSetMap ( SignatureUtils . stripSignature ( signature ) ) ) { stack . resetForMethodEntry... | overrides the visitor to reset the stack for the new method then checks if the immutability field is set to immutable and if so reports it |
126,898 | public void sawOpcode ( int seen ) { ImmutabilityType seenImmutable = null ; try { stack . precomputation ( this ) ; switch ( seen ) { case Const . INVOKESTATIC : { String className = getClassConstantOperand ( ) ; String methodName = getNameConstantOperand ( ) ; if ( IMMUTABLE_PRODUCING_METHODS . contains ( className +... | overrides the visitor to look for calls to static methods that are known to return immutable collections It records those variables and documents if what the method returns is one of those objects . |
126,899 | private boolean isJavaXExternal ( String className ) { if ( ! className . startsWith ( "javax/" ) ) { return false ; } if ( className . startsWith ( "javax/xml/" ) ) { return true ; } int lastSlashPos = className . lastIndexOf ( '/' ) ; String packageName = className . substring ( 0 , lastSlashPos ) ; ZipEntry ze = jdk... | checks to see if this class is a javax . xxxx . Foo class if so looks to see if the package is at least in the jdk if a whole new package comes into javax in rt . jar this will be missed . Need a better solution here . |
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