Fix issue jetty#5499

this PR let the ByteAccumulator recyclable. after invoke ByteAccumulator.transferTo method
we can invoke ByteAccumulator.recycle method to reuse byte[] via ByteAccumulator.newByteArray method

Signed-off-by: Baoyi <chen.bao.yi@qq.com>

jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/extensions/compress/CompressExtension.java

@@ -211,7 +211,7 @@ protected void decompress(ByteAccumulator accumulator, ByteBuffer buf) throws Da
                 read = inflater.inflate(output);
                 if (read <= 0)
                 {
-                    if (read == 0 && LOG.isDebugEnabled())
+                    if (LOG.isDebugEnabled())
                         LOG.debug("Decompress: read 0 {}", toDetail(inflater));
                     break;
                 }