Charlie Meyer created NIFI-4841:
-----------------------------------
Summary: NPE when reverting local modifications to a versioned
process group
Key: NIFI-4841
URL: https://issues.apache.org/jira/browse/NIFI-4841
Project: Apache NiFi
Issue Type: Bug
Reporter: Charlie Meyer
I created a process group via importing from the registry. I then made a few
modifications including settings properties and connecting some components. I
then attempted to revert my local changes so I could update the flow to a newer
version. When reverting the local changes, NiFi threw a NPE with the following
stack trace:
{noformat}
2018-02-05 17:18:52,356 INFO [Version Control Update Thread-1]
org.apache.nifi.web.api.VersionsResource Stopping 1 Processors
2018-02-05 17:18:52,477 ERROR [Version Control Update Thread-1]
org.apache.nifi.web.api.VersionsResource Failed to update flow to new version
java.lang.NullPointerException: null
at
org.apache.nifi.web.dao.impl.StandardProcessGroupDAO.scheduleComponents(StandardProcessGroupDAO.java:179)
at
org.apache.nifi.web.dao.impl.StandardProcessGroupDAO$$FastClassBySpringCGLIB$$10a99b47.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
at
org.apache.nifi.web.dao.impl.StandardProcessGroupDAO$$EnhancerBySpringCGLIB$$bc287b8b.scheduleComponents(<generated>)
at
org.apache.nifi.web.StandardNiFiServiceFacade$3.update(StandardNiFiServiceFacade.java:981)
at
org.apache.nifi.web.revision.NaiveRevisionManager.updateRevision(NaiveRevisionManager.java:120)
at
org.apache.nifi.web.StandardNiFiServiceFacade.scheduleComponents(StandardNiFiServiceFacade.java:976)
at
org.apache.nifi.web.StandardNiFiServiceFacade$$FastClassBySpringCGLIB$$358780e0.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
at
org.apache.nifi.web.NiFiServiceFacadeLock.proceedWithWriteLock(NiFiServiceFacadeLock.java:173)
at
org.apache.nifi.web.NiFiServiceFacadeLock.scheduleLock(NiFiServiceFacadeLock.java:102)
at sun.reflect.GeneratedMethodAccessor557.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
at
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
at
org.apache.nifi.web.StandardNiFiServiceFacade$$EnhancerBySpringCGLIB$$8a758fa4.scheduleComponents(<generated>)
at
org.apache.nifi.web.util.LocalComponentLifecycle.stopComponents(LocalComponentLifecycle.java:125)
at
org.apache.nifi.web.util.LocalComponentLifecycle.scheduleComponents(LocalComponentLifecycle.java:66)
at
org.apache.nifi.web.api.VersionsResource.updateFlowVersion(VersionsResource.java:1365)
at
org.apache.nifi.web.api.VersionsResource.lambda$null$22(VersionsResource.java:1305)
at
org.apache.nifi.web.api.concurrent.AsyncRequestManager$2.run(AsyncRequestManager.java:109)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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){noformat}
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