Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/5685#discussion_r174225988 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/rest/FlinkHttpObjectAggregator.java --- @@ -0,0 +1,65 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.runtime.rest; + +import org.apache.flink.configuration.RestOptions; +import org.apache.flink.runtime.rest.handler.util.HandlerUtils; +import org.apache.flink.runtime.rest.messages.ErrorResponseBody; + +import org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext; +import org.apache.flink.shaded.netty4.io.netty.handler.codec.TooLongFrameException; +import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject; +import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpResponseStatus; + +import java.util.List; +import java.util.Map; + +/** + * Same as {@link org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObjectDecoder} + * but returns HTTP 413 to the client if the payload exceeds {@link #maxContentLength}. + */ +public class FlinkHttpObjectAggregator extends org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObjectAggregator { + + private final Map<String, String> responseHeaders; + + public FlinkHttpObjectAggregator(final int maxContentLength, final Map<String, String> responseHeaders) { + super(maxContentLength); + this.responseHeaders = responseHeaders; --- End diff -- `checkNotNull` or `@NonNull` missing
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