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  1. ,

    You need to set the type property in your bean XML file. <property name="targetType" value="some value" />

  2. ,
    Expert tip

    If you're using boot 1.4.x you need to modify the @springBootTest annotation to @SpringBootTest(classes = DataFlowServerConfiguration.class). 1.3.8 doesn't have this problem as well.

Solutions on the web

via Spring JIRA by Thomas Risberg, 1 year ago
error occurred in message handler [org.springframework.integration.aggregator.AggregatingMessageHandler#0]
via Spring JIRA by Thomas Risberg, 1 year ago
error occurred in message handler [org.springframework.integration.aggregator.AggregatingMessageHandler#0]
via Stack Overflow by Aman
, 2 years ago
error occurred in message handler [org.springframework.integration.gemfire.outbound.CacheWritingMessageHandler#0]; nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1004E:(pos 8): Method call: Method getField(java.lang.String) cannot be found on java.lang.String type
via Spring JIRA by Ilayaperumal Gopinathan, 1 year ago
error occurred in message handler [moduleDeployer]
via Spring JIRA by Ilayaperumal Gopinathan, 1 year ago
error occurred in message handler [moduleDeployer]
via Stack Overflow by Developer
, 1 year ago
error occurred in message handler [org.springframework.integration.kafka.outbound.KafkaProducerMessageHandler#1]; nested exception is org.apache.kafka.common.errors.SerializationException: Can't convert value of class common.vo.GcmNotificationVo to class common.serializer.MicrosoftAccountSyncRequestVoSerializer specified in value.serializer
java.lang.IllegalStateException: Null correlation not allowed.  Maybe the CorrelationStrategy is failing?	at org.springframework.util.Assert.state(Assert.java:385)	at org.springframework.integration.aggregator.AbstractCorrelatingMessageHandler.handleMessageInternal(AbstractCorrelatingMessageHandler.java:383)	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)	at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.handleMessage(SimpleMessageHandlerMetrics.java:106)	at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.invoke(SimpleMessageHandlerMetrics.java:86)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)	at com.sun.proxy.$Proxy84.handleMessage(Unknown Source)	at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)	at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:101)	at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:97)	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77)	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:255)	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:223)	at sun.reflect.GeneratedMethodAccessor89.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)	at org.springframework.integration.monitor.DirectChannelMetrics.monitorSend(DirectChannelMetrics.java:113)	at org.springframework.integration.monitor.DirectChannelMetrics.doInvoke(DirectChannelMetrics.java:97)	at org.springframework.integration.monitor.DirectChannelMetrics.invoke(DirectChannelMetrics.java:91)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)	at com.sun.proxy.$Proxy78.send(Unknown Source)	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:109)	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:44)	at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:94)	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.sendMessage(AbstractReplyProducingMessageHandler.java:260)	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.sendReplyMessage(AbstractReplyProducingMessageHandler.java:241)	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.produceReply(AbstractReplyProducingMessageHandler.java:205)	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleResult(AbstractReplyProducingMessageHandler.java:199)	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:177)	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)	at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)	at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:101)	at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:97)	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77)	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:255)	at org.springframework.xd.dirt.integration.redis.RedisMessageBus$1$1.doWithRetry(RedisMessageBus.java:251)	at org.springframework.xd.dirt.integration.redis.RedisMessageBus$1$1.doWithRetry(RedisMessageBus.java:247)	at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:263)	at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:168)	at org.springframework.xd.dirt.integration.redis.RedisMessageBus$1.doSend(RedisMessageBus.java:247)	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:255)	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:223)	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:109)	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:44)	at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:94)	at org.springframework.integration.endpoint.MessageProducerSupport.sendMessage(MessageProducerSupport.java:98)	at org.springframework.integration.redis.inbound.RedisQueueMessageDrivenEndpoint.popMessageAndSend(RedisQueueMessageDrivenEndpoint.java:211)	at org.springframework.integration.redis.inbound.RedisQueueMessageDrivenEndpoint.access$300(RedisQueueMessageDrivenEndpoint.java:50)	at org.springframework.integration.redis.inbound.RedisQueueMessageDrivenEndpoint$ListenerTask.run(RedisQueueMessageDrivenEndpoint.java:290)	at org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52)	at java.lang.Thread.run(Thread.java:744)