Update Dockerfile

Dockerfile

@@ -9,9 +9,13 @@ RUN apt-get update && apt-get install -y \
     zip \
     && rm -rf /var/lib/apt/lists/*
 
+# URL chunks taaki copy-paste ke waqt koi bhi UI ise auto-markdown link me convert na kare
+ENV J_BASE=[https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL](https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL)
+ENV J_FILE=openjdk-17.0.2_linux-x64_bin.tar.gz
+
 # Production-ready OpenJDK 17 Linux x64 Binary download aur extract karein
 RUN mkdir -p /opt/java \
-    && curl -L -o /tmp/openjdk.tar.gz [https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL/openjdk-17.0.2_linux-x64_bin.tar.gz](https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL/openjdk-17.0.2_linux-x64_bin.tar.gz) \
+    && curl -L -o /tmp/openjdk.tar.gz $J_BASE/$J_FILE \
     && tar -xf /tmp/openjdk.tar.gz -C /opt/java --strip-components=1 \
     && rm /tmp/openjdk.tar.gz