[#noissue] Fix rokectMQ plugin: judge the last char before append properties in ProducerSendInterceptor. #9135
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RocketMq 4.9.1: save 1 byte for each message.
It removes the last char, but the rocketMQ plugin does not judge the last char before append properties. So use rocketMq 4.9.1+ with pinpoint, the last property will be modified.
eg: The last property is DELAY, the following exception will appear in broker.
java.lang.NumberFormatException: For input string: "4Pinpoint-Flags^A0" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at org.apache.rocketmq.common.message.Message.getDelayTimeLevel(Message.java:140) at org.apache.rocketmq.store.CommitLog.asyncPutMessage(CommitLog.java:624) at org.apache.rocketmq.store.DefaultMessageStore.asyncPutMessage(DefaultMessageStore.java:466) at org.apache.rocketmq.broker.processor.SendMessageProcessor.asyncSendMessage(SendMessageProcessor.java:327) at org.apache.rocketmq.broker.processor.SendMessageProcessor.asyncProcessRequest(SendMessageProcessor.java:106) at org.apache.rocketmq.broker.processor.SendMessageProcessor.asyncProcessRequest(SendMessageProcessor.java:87) at org.apache.rocketmq.remoting.netty.NettyRemotingAbstract$1.run(NettyRemotingAbstract.java:227) at org.apache.rocketmq.remoting.netty.RequestTask.run(RequestTask.java:80) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)