Craig Patrick created NIFI-14935:
------------------------------------
Summary: Trying to commit processor flow to registry fails out
with null pointer exception when Reference Parameter is empty
Key: NIFI-14935
URL: https://issues.apache.org/jira/browse/NIFI-14935
Project: Apache NiFi
Issue Type: Bug
Components: Core UI
Affects Versions: 2.0.0
Environment: All
Reporter: Craig Patrick
When trying to commit a process flow to registry, if the parameter context
being used contains a reference parameter to a service - and the parameter is
empty or null - the process fails with an unknown error in the UI and a "null
pointer exception" in the logs.
Use case:
a process flow which has an invokeHttp processor in it, which uses a
`{{{}Reference Parameter{}}}` to an SSL service to allow https connections. If
this parameter is empty / null, ANY processors using the same context will not
be committed to the registry due to this "unable to find componentId" issue.
This is a full stack trace:
{code:java}
2025-09-03 14:14:37,537 ERROR [NiFi Web Server-976]
o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred:
java.lang.NullPointerException: Cannot invoke
"String.getBytes(java.nio.charset.Charset)" because "componentId" is null.
Returning Internal Server Error response.java.lang.NullPointerException: Cannot
invoke "String.getBytes(java.nio.charset.Charset)" because "componentId" is
null at
org.apache.nifi.registry.flow.mapping.ComponentIdLookup.lambda$static$0(ComponentIdLookup.java:26)
at
org.apache.nifi.registry.flow.mapping.ComponentIdLookup$1.getComponentId(ComponentIdLookup.java:54)
at
org.apache.nifi.registry.flow.mapping.ComponentIdLookup.getComponentId(ComponentIdLookup.java:35)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.getId(NiFiRegistryFlowMapper.java:314)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.mapParameter(NiFiRegistryFlowMapper.java:928)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.lambda$mapParameters$14(NiFiRegistryFlowMapper.java:906)
at
java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at
java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1939)
at
java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at
java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at
java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
at
java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at
java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.mapParameters(NiFiRegistryFlowMapper.java:911)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.mapParameterContext(NiFiRegistryFlowMapper.java:886)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.mapParameterContexts(NiFiRegistryFlowMapper.java:868)
at
org.apache.nifi.registry.flow.mapping.NiFiRegistryFlowMapper.mapParameterContexts(NiFiRegistryFlowMapper.java:859)
at
org.apache.nifi.web.StandardNiFiServiceFacade.createVersionedParameterContexts(StandardNiFiServiceFacade.java:5452)
at
org.apache.nifi.web.StandardNiFiServiceFacade.registerFlowWithFlowRegistry(StandardNiFiServiceFacade.java:5141)
at
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580) at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:355)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)
at
org.apache.nifi.web.NiFiServiceFacadeLock.proceedWithReadLock(NiFiServiceFacadeLock.java:161)
at
org.apache.nifi.web.NiFiServiceFacadeLock.registerLock(NiFiServiceFacadeLock.java:144)
at
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580) at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:637)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:627)
at
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:71)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:720)
at
org.apache.nifi.web.StandardNiFiServiceFacade$$SpringCGLIB$$0.registerFlowWithFlowRegistry(<generated>)
at
org.apache.nifi.web.api.VersionsResource.lambda$saveToFlowRegistry$10(VersionsResource.java:608)
at
org.apache.nifi.web.api.ApplicationResource.withWriteLock(ApplicationResource.java:575)
at
org.apache.nifi.web.api.VersionsResource.saveToFlowRegistry(VersionsResource.java:585)
at
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580) at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:146)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:189)
at
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:93)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:478)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:400)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:274)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248) at
org.glassfish.jersey.internal.Errors$1.call(Errors.java:244) at
org.glassfish.jersey.internal.Errors.process(Errors.java:292) at
org.glassfish.jersey.internal.Errors.process(Errors.java:274) at
org.glassfish.jersey.internal.Errors.process(Errors.java:244) at
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:266)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:253)
at
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:696)
at
org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:397) at
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:349) at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:358)
at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:312)
at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
at
org.eclipse.jetty.ee10.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1379)
at
org.eclipse.jetty.ee10.servlet.ServletHolder.handle(ServletHolder.java:736) at
org.eclipse.jetty.ee10.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1614)
at
org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365)
at
org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.apache.nifi.web.security.log.AuthenticationUserFilter.doFilterInternal(AuthenticationUserFilter.java:57)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.oauth2.server.resource.web.authentication.BearerTokenAuthenticationFilter.doFilterInternal(BearerTokenAuthenticationFilter.java:145)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:94)
at
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:56)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.apache.nifi.web.security.csrf.CsrfCookieFilter.doFilterInternal(CsrfCookieFilter.java:43)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:131)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.apache.nifi.web.security.csrf.SkipReplicatedCsrfFilter.doFilterInternal(SkipReplicatedCsrfFilter.java:59)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:62)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
at
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:233)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:191)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:362)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:278)
at
org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:205) at
org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at
org.apache.nifi.web.filter.ExceptionFilter.doFilter(ExceptionFilter.java:44) at
org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:208) at
org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at
org.eclipse.jetty.ee10.servlets.DoSFilter.doFilterChain(DoSFilter.java:462) at
org.apache.nifi.web.server.filter.DataTransferExcludedDoSFilter.doFilterChain(DataTransferExcludedDoSFilter.java:51)
at org.eclipse.jetty.ee10.servlets.DoSFilter.doFilter(DoSFilter.java:317)
at org.eclipse.jetty.ee10.servlets.DoSFilter.doFilter(DoSFilter.java:282)
at org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at
org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at
org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
at
org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:205) at
org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at
org.apache.nifi.web.server.log.RequestAuthenticationFilter.doFilterInternal(RequestAuthenticationFilter.java:59)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at
org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:205) at
org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at
org.eclipse.jetty.ee10.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1547)
at
org.eclipse.jetty.ee10.servlet.ServletChannel.dispatch(ServletChannel.java:824)
at
org.eclipse.jetty.ee10.servlet.ServletChannel.handle(ServletChannel.java:436)
at
org.eclipse.jetty.ee10.servlet.ServletHandler.handle(ServletHandler.java:464)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:575) at
org.eclipse.jetty.ee10.servlet.SessionHandler.handle(SessionHandler.java:717)
at
org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1060)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:181)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:181)
at org.eclipse.jetty.server.Server.handle(Server.java:182) at
org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
at
org.eclipse.jetty.util.thread.Invocable$ReadyTask.run(Invocable.java:105) at
org.eclipse.jetty.http2.server.internal.HttpStreamOverHTTP2$1.run(HttpStreamOverHTTP2.java:135)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164)
at java.base/java.lang.Thread.run(Thread.java:1583){code}
I will be submitting an additional ticket for further issue regarding use of
Reference Parameter
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