Daniel Chaffelson created NIFI-7995:
---------------------------------------

             Summary: Requesting create Parameter Context via API with 
Parameters null generates an NPE
                 Key: NIFI-7995
                 URL: https://issues.apache.org/jira/browse/NIFI-7995
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.12.1, 1.10.0
            Reporter: Daniel Chaffelson


org.apache.nifi.web.api.ParameterContextResource.validateParameterNames(ParameterContextResource.java:403)
gets very upset if you submit a JSON with null for the Parameter listing 
instead of an empty or populated list. It is a minor thing, but probably worth 
tidying up in the validator.

Discovered because NiPyAPI defaults to Python 'None' for unpopulated properties.

 

Full logged error is:
2020-11-09 13:20:28,612 ERROR [NiFi Web Server-22] 
o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred: 
java.lang.NullPointerException. Returning Internal Server Error response.
java.lang.NullPointerException: null
        at 
org.apache.nifi.web.api.ParameterContextResource.validateParameterNames(ParameterContextResource.java:403)
        at 
org.apache.nifi.web.api.ParameterContextResource.createParameterContext(ParameterContextResource.java:199)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:76)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:148)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:191)
        at 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:200)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:103)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:493)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:415)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:104)
        at 
org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
        at 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
        at 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
        at 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
        at 
org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
        at 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:370)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229)
        at 
org.eclipse.jetty.servlet.ServletHolder$NotAsyncServlet.service(ServletHolder.java:1395)
        at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:755)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1617)
        at 
org.apache.nifi.web.filter.RequestLogger.doFilter(RequestLogger.java:66)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:100)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:100)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:100)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:100)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:100)
        at 
org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at org.apache.nifi.web.filter.TimerFilter.doFilter(TimerFilter.java:51)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.apache.nifi.web.filter.ExceptionFilter.doFilter(ExceptionFilter.java:46)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1596)
        at 
org.eclipse.jetty.servlets.DoSFilter.doFilterChain(DoSFilter.java:472)
        at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:325)
        at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:295)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.apache.nifi.web.security.headers.XContentTypeOptionsFilter.doFilter(XContentTypeOptionsFilter.java:48)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.apache.nifi.web.security.headers.XSSProtectionFilter.doFilter(XSSProtectionFilter.java:48)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.apache.nifi.web.security.headers.ContentSecurityPolicyFilter.doFilter(ContentSecurityPolicyFilter.java:47)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.apache.nifi.web.security.headers.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:48)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:767)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221)
        at 
org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at org.eclipse.jetty.server.Server.handle(Server.java:500)
        at 
org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270)
        at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
        at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
        at java.lang.Thread.run(Thread.java:748)
 



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