org.springframework.messaging.converter.MessageConversionException: Cannot convert from [[B] to [org.gasmart.websocket.Message] for GenericMessage [payload=byte[33], headers={simpMessageType=MESSAGE, stompCommand=SEND, nativeHeaders={destination=[/app/chatchannel], content-type=[text/plain;charset=UTF-8], content-length=[33]}, simpSessionAttributes={ip=/127.0.0.1:59629}, simpHeartbeat=[J@147a2bf, contentType=text/plain;charset=UTF-8, lookupDestination=/chatchannel, simpSessionId=79431feb8b5f4a9497492ccc64f8965f, simpDestination=/app/chatchannel}]

Stack Overflow | Sergio | 6 months ago
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    How configure the Spring Sockjs Java Client message converters

    Stack Overflow | 6 months ago | Sergio
    org.springframework.messaging.converter.MessageConversionException: Cannot convert from [[B] to [org.gasmart.websocket.Message] for GenericMessage [payload=byte[33], headers={simpMessageType=MESSAGE, stompCommand=SEND, nativeHeaders={destination=[/app/chatchannel], content-type=[text/plain;charset=UTF-8], content-length=[33]}, simpSessionAttributes={ip=/127.0.0.1:59629}, simpHeartbeat=[J@147a2bf, contentType=text/plain;charset=UTF-8, lookupDestination=/chatchannel, simpSessionId=79431feb8b5f4a9497492ccc64f8965f, simpDestination=/app/chatchannel}]

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    Root Cause Analysis

    1. org.springframework.messaging.converter.MessageConversionException

      Cannot convert from [[B] to [org.gasmart.websocket.Message] for GenericMessage [payload=byte[33], headers={simpMessageType=MESSAGE, stompCommand=SEND, nativeHeaders={destination=[/app/chatchannel], content-type=[text/plain;charset=UTF-8], content-length=[33]}, simpSessionAttributes={ip=/127.0.0.1:59629}, simpHeartbeat=[J@147a2bf, contentType=text/plain;charset=UTF-8, lookupDestination=/chatchannel, simpSessionId=79431feb8b5f4a9497492ccc64f8965f, simpDestination=/app/chatchannel}]

      at org.springframework.messaging.handler.annotation.support.PayloadArgumentResolver.resolveArgument()
    2. Spring Messaging
      ExecutorSubscribableChannel$SendTask.run
      1. org.springframework.messaging.handler.annotation.support.PayloadArgumentResolver.resolveArgument(PayloadArgumentResolver.java:124)
      2. org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:112)
      3. org.springframework.messaging.handler.invocation.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:138)
      4. org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:107)
      5. org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMatch(AbstractMethodMessageHandler.java:502)
      6. org.springframework.messaging.simp.annotation.support.SimpAnnotationMethodMessageHandler.handleMatch(SimpAnnotationMethodMessageHandler.java:497)
      7. org.springframework.messaging.simp.annotation.support.SimpAnnotationMethodMessageHandler.handleMatch(SimpAnnotationMethodMessageHandler.java:87)
      8. org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessageInternal(AbstractMethodMessageHandler.java:461)
      9. org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessage(AbstractMethodMessageHandler.java:399)
      10. org.springframework.messaging.support.ExecutorSubscribableChannel$SendTask.run(ExecutorSubscribableChannel.java:135)
      10 frames
    3. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames