src/java.base/share/classes/jdk/internal/jrtfs/JrtFileAttributes.java

@@ -74,16 +74,16 @@
         return node.size();
     }
 
     @Override
     public boolean isSymbolicLink() {
-        return false;
+        return node.isLink();
     }
 
     @Override
     public Object fileKey() {
-        return null;
+        return node.resolveLink(true);
     }
 
     ///////// jrt entry attributes ///////////
     public long compressedSize() {
         return node.compressedSize();