microservice showing errors on Dev environment - spring-boot

Question

I have no idea what kind of errors are these and how it is related to microservice when i m not using any message converting in the code. Any help would be grateful. Thanks in advance! Any idea on below errors?
2020-09-08 04:13:54.304 ERROR [uniban-service,129475cb8b32b7ad,0053b1e337a7defb,true] 11 --- [ask-scheduler-4] o.s.integration.handler.LoggingHandler : org.springframework.messaging.MessagingException: Failed to invoke method; nested exception is org.springframework.messaging.converter.MessageConversionException: Could Not Convert Output
at org.springframework.integration.endpoint.MethodInvokingMessageSource.doReceive(MethodInvokingMessageSource.java:115)
at org.springframework.integration.endpoint.AbstractMessageSource.receive(AbstractMessageSource.java:167)
at org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:250)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:359)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.pollForMessage(AbstractPollingEndpoint.java:328)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.lambda$null$1(AbstractPollingEndpoint.java:275)
at org.springframework.integration.util.ErrorHandlingTaskExecutor.lambda$execute$0(ErrorHandlingTaskExecutor.java:57)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:55)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.lambda$createPoller$2(AbstractPollingEndpoint.java:272)
at org.springframework.cloud.sleuth.instrument.async.TraceRunnable.run(TraceRunnable.java:68)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.messaging.converter.MessageConversionException: Could Not Convert Output
at org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry$FunctionInvocationWrapper.convertOutputValueIfNecessary(SimpleFunctionRegistry.java:674)
at org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry$FunctionInvocationWrapper.doApply(SimpleFunctionRegistry.java:600)
at org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry$FunctionInvocationWrapper.get(SimpleFunctionRegistry.java:463)
at org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry$FunctionInvocationWrapper.get(SimpleFunctionRegistry.java:448)
at org.springframework.cloud.stream.function.PartitionAwareFunctionWrapper.get(PartitionAwareFunctionWrapper.java:86)
at sun.reflect.GeneratedMethodAccessor79.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282)
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:266)
at org.springframework.integration.endpoint.MethodInvokingMessageSource.doReceive(MethodInvokingMessageSource.java:112)
... 19 more
2020-09-08 04:13:54.304 DEBUG [uniban-service,129475cb8b32b7ad,0053b1e337a7defb,true] 11 ---
[ask-scheduler-4] o.s.i.channel.PublishSubscribeChannel : postSend (sent=true) on channel
'bean 'errorChannel'', message: ErrorMessage
[payload=org.springframework.messaging.MessagingException: Failed to invoke method; nested
exception is org.springframework.messaging.converter.MessageConversionException: Could Not
Convert Output, headers={b3=129475cb8b32b7ad-0053b1e337a7defb-1, id=35b1a363-aa5e-ada3-0c23-
5347c337d951, timestamp=1599552834304}]
2020-09-08 04:13:54.304 DEBUG [uniban-service,129475cb8b32b7ad,0053b1e337a7defb,true] 11 ---
[ask-scheduler-4] o.s.c.s.i.m.TracingChannelInterceptor : Will finish the current span after
completion LazySpan(129475cb8b32b7ad/0053b1e337a7defb)

Answer 1

I found the bug. My bug is caused by the jolokia-core. When I upgrade springboot, I do not upgrade springbootadmin synchronouslyenter image description here
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