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https://issues.apache.org/jira/browse/CAMEL-10360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16350003#comment-16350003
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Claus Ibsen commented on CAMEL-10360:
-------------------------------------
I suggest to use the newer camel-mllp component which is more hardened
> IllegalStateException when mina buffer contains duplicate MLLP end bytes
> ------------------------------------------------------------------------
>
> Key: CAMEL-10360
> URL: https://issues.apache.org/jira/browse/CAMEL-10360
> Project: Camel
> Issue Type: Bug
> Components: camel-hl7
> Affects Versions: 2.17.3, 2.18.1
> Reporter: Gijsbert van den Brink
> Priority: Minor
> Attachments: CAMEL10360Test.java
>
>
> We're occasionally seeing the following Mina exception on our production
> environment: "IllegalStateException: doDecode() can't return true when buffer
> is not consumed." (full stack trace below)
> I haven't been able to reproduce the issue, and I don't fully understand the
> problem, but I think it's caused by duplicate messages (or specifically
> duplicate end byte markers) in the Mina IoBuffer that is read by Camel's
> HL7MLLPDecoder.
> Full stack trace (with truncated hex dump):
> org.apache.camel.CamelExchangeException: Error occurred in ResponseHandler.
> Exchange[ID-prdvpn01-zd-messaging-37296-1475153396916-0-335909]. Caused by:
> [org.apache.mina.filter.codec.ProtocolDecoderException -
> java.lang.IllegalStateException: doDecode() can't return true when buffer is
> not consumed. (Hexdump: 0B 4D 53 48 ... 0D 1C 0D 0B 4D 53 48 ... 0D 1C 0D)]
> at
> org.apache.camel.component.mina2.Mina2Producer.doProcess(Mina2Producer.java:178)
> at
> org.apache.camel.component.mina2.Mina2Producer.process(Mina2Producer.java:116)
> at
> org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
> at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
> at
> org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:681)
> at
> org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:609)
> at
> org.apache.camel.processor.MulticastProcessor.process(MulticastProcessor.java:238)
> at
> org.apache.camel.processor.RecipientList.sendToRecipientList(RecipientList.java:170)
> at
> org.apache.camel.processor.RecipientList.process(RecipientList.java:131)
> at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
> at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
> at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
> at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
> at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
> at
> org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
> at
> org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
> at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
> at
> org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:112)
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:721)
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:681)
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:651)
> at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:315)
> at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:233)
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1158)
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1150)
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1047)
> 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)
> Caused by: org.apache.mina.filter.codec.ProtocolDecoderException:
> java.lang.IllegalStateException: doDecode() can't return true when buffer is
> not consumed. (Hexdump: 0B 4D 53 48 ... 0D 1C 0D 0B 4D 53 48 ... 0D 1C 0D)
> at
> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:240)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:542)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:48)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:947)
> at
> org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:74)
> at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:770)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:762)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:704)
> ... 1 common frames omitted
> Caused by: java.lang.IllegalStateException: doDecode() can't return true when
> buffer is not consumed.
> at
> org.apache.mina.filter.codec.CumulativeProtocolDecoder.decode(CumulativeProtocolDecoder.java:184)
> at
> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:231)
> ... 9 common frames omitted
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