public InputStreamZippedJarVisitor(URL url,
    Filter[] filters) 
{
	     
		super( url, filters );
}

 public InputStreamZippedJarVisitor(String fileName,
    Filter[] filters) 
{
		super( fileName, filters );
}

 protected  void doProcessElements() throws IOException 
{
		JarInputStream jis;
		try {
			jis = new JarInputStream( jarUrl.openStream() );
		}
		catch (Exception ze) {
			//really should catch IOException but Eclipse is buggy and raise NPE...
			log.warn( "Unable to find file (ignored): " + jarUrl, ze );
			return;
		}
		JarEntry entry;
		while ( ( entry = jis.getNextJarEntry() ) != null ) {
			if ( !entry.isDirectory() ) {
				int size;
				byte[] tmpByte = new byte[ 4096 ];
				byte[] entryBytes = new byte[0];
				for ( ; ; ) {
					size = jis.read( tmpByte );
					if ( size == -1 ) break;
					byte[] current = new byte[ entryBytes.length + size ];
					System.arraycopy( entryBytes, 0, current, 0, entryBytes.length );
					System.arraycopy( tmpByte, 0, current, entryBytes.length, size );
					entryBytes = current;
				}
				//this is bad cause we actually read everything instead of walking it lazily
				addElement(
						entry.getName(),
						new ByteArrayInputStream( entryBytes ),
						new ByteArrayInputStream( entryBytes )
				);
			}
		}
		jis.close();
}