我有基于Apache Camel 的简单POC应用程序试图从 IBM MQ 中提取消息并将其发布到 Apache kafka 。我看到日志文件不断滚动，但有以下异常。我在这个问题上做了一些搜索并没多大帮助。
我还发现在Apache NiFi项目中针对同样的问题进行了修复。不确定是否需要在Apache Camel / Kafka项目中应用相同的修复程序。这是JIRA URL。
https://issues.apache.org/jira/browse/NIFI-4976
使用的骆驼版本 - 2.21.1
这是完整的堆栈跟踪，
org.apache.camel.RuntimeCamelException: Failed to extract body due to: com.ibm.msg.client.jms.DetailedJMSException: JMSCMQ1049: The character set '1208(UTF-8) Unmappable Action: REPORT Unmappable Replacement: 63' cannot convert some or all of the string '[B@b1beb88'
An attempt was made to send or receive string data using a character set not capable of translating the strings content.
Only encode a message using a character set known to be appropriate for the string data being transmitted..
at org.apache.camel.component.jms.JmsBinding.extractBodyFromJms(JmsBinding.java:172)
at org.apache.camel.component.jms.JmsMessage.createBody(JmsMessage.java:221)
at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:54)
at org.apache.camel.component.kafka.KafkaProducer.createRecorder(KafkaProducer.java:172)
at org.apache.camel.component.kafka.KafkaProducer.process(KafkaProducer.java:259)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.component.direct.DirectBlockingProducer.process(DirectBlockingProducer.java:53)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:113)
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:317)
at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:235)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1166)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1158)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1055)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.ibm.msg.client.jms.DetailedJMSException: JMSCMQ1049: The character set '1208(UTF-8) Unmappable Action: REPORT Unmappable Replacement: 63' cannot convert some or all of the string '[B@b1beb88'
at sun.reflect.GeneratedConstructorAccessor75.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.ibm.msg.client.commonservices.j2se.NLSServices.createException(NLSServices.java:319)
at com.ibm.msg.client.commonservices.nls.NLSServices.createException(NLSServices.java:226)
at com.ibm.msg.client.wmq.common.internal.WMQUtils.computeTextFromBytes(WMQUtils.java:382)
at com.ibm.msg.client.wmq.common.internal.WMQUtils.computeTextFromByteBuffer(WMQUtils.java:421)
at com.ibm.msg.client.wmq.common.internal.messages.WMQTextMessage.getText(WMQTextMessage.java:240)
at com.ibm.msg.client.jms.internal.JmsTextMessageImpl.getText(JmsTextMessageImpl.java:205)
at com.ibm.jms.JMSTextMessage.getText(JMSTextMessage.java:124)
at org.apache.camel.component.jms.JmsBinding.extractBodyFromJms(JmsBinding.java:157)
... 26 common frames omitted
Caused by: java.nio.charset.MalformedInputException: Input length = 1
at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:816)
at com.ibm.mq.jmqi.system.JmqiCodepage.bytesToString(JmqiCodepage.java:745)
at com.ibm.msg.client.wmq.common.internal.WMQUtils.computeTextFromBytes(WMQUtils.java:375)
... 31 common frames omitted