revert invalid changes

Signed-off-by: Ludovic Orban <[email protected]>

jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/handler/gzip/GzipResponseAndCallback.java

@@ -72,6 +72,7 @@ private enum GZState
     private final int _bufferSize;
     private final boolean _syncFlush;
     private DeflaterPool.Entry _deflaterEntry;
+    private RetainableByteBuffer _buffer;
     private boolean _last;
 
     public GzipResponseAndCallback(GzipHandler handler, Request request, Response response, Callback callback)
@@ -302,7 +303,6 @@ private class GzipBufferCB extends IteratingNestedCallback
     {
         private final ByteBuffer _content;
         private final boolean _last;
-        private RetainableByteBuffer _buffer;
 
         public GzipBufferCB(boolean complete, Callback callback, ByteBuffer content)
         {
@@ -321,13 +321,6 @@ public GzipBufferCB(boolean complete, Callback callback, ByteBuffer content)
                 LOG.debug("GzipBufferCB(complete={}, callback={}, content={})", complete, callback, BufferUtil.toDetailString(content));
         }
 
-        @Override
-        protected void onCompleteSuccess()
-        {
-            cleanup();
-            super.onCompleteSuccess();
-        }
-
         @Override
         protected void onCompleteFailure(Throwable x)
         {
@@ -349,6 +342,7 @@ protected Action process() throws Exception
                 // then the trailer has been generated and written below.
                 // We have finished compressing the entire content, so
                 // cleanup and succeed.
+                cleanup();
                 return Action.SUCCEEDED;
             }