Fix Bug 473555 - File descriptors leak in ExtensibleURLClassLoader

weaver/src/org/aspectj/weaver/bcel/ExtensibleURLClassLoader.java

  * Contributors: 
  *     Matthew Webster, Adrian Colyer, 
  *     Martin Lippert     initial implementation 
+ *     Andy Clement
+ *     Roy Varghese - Bug 473555
  * ******************************************************************/
 
 package org.aspectj.weaver.bcel;
 		int offset = className.lastIndexOf('.');
 		return (offset == -1) ? null : className.substring(0, offset);
 	}
+	
+	@Override
+	public void close() throws IOException {
+		super.close();
+		classPath.closeArchives();
+	}
 
 }