Hi,
I use camel 2.12.2 and created a processor. When I deploy the
application I got vague error messages in log like this:
Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
org.apache.camel.CamelExecutionException: Exception occurred during
execution on the exchange: Exchange[JmsMessage[JmsMessageID:
ID:test-ubt-43435-1390545930388-1:1:143014:1:1]]
at
org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1368)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.impl.DefaultExchange.setException(DefaultExchange.java:283)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:66)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.Pipeline.process(Pipeline.java:118)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:105)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:87)[camel-core-2.12.2.jar:2.12.2]
at
org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:103)[camel-jms-2.12.2.jar:2.12.2]
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1103)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1095)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:992)[spring-jms-3.2.4.RELEASE.jar:3.2.4.RELEASE]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[:1.7.0_25]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[:1.7.0_25]
at java.lang.Thread.run(Thread.java:724)[:1.7.0_25]
By this message, I could not figure out what happened actually. Finally
I had to add try-catch(Throwable) in my processor.process() method. I
then found it's an NoClassDefFoundError. It's actually a classpath
setting problem. But I was not able to figure out it by the log of
camel. I believe Camel should log this error clearly instead of the
vague messages above.
