Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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1.2.0
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None
Description
If the user trying to retrieve bulletins doesn't have permissions to view a bulletin, a NullPointerException is thrown:
2017-05-11 03:59:15,960 ERROR [NiFi Web Server-14020] 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.cluster.manager.BulletinMerger.lambda$mergeBulletins$0(BulletinMerger.java:79) at java.util.stream.Collectors.lambda$groupingBy$45(Collectors.java:907) at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) at org.apache.nifi.cluster.manager.BulletinMerger.mergeBulletins(BulletinMerger.java:79) at org.apache.nifi.cluster.manager.ComponentEntityMerger.merge(ComponentEntityMerger.java:62) at org.apache.nifi.cluster.manager.ProcessGroupEntityMerger.merge(ProcessGroupEntityMerger.java:29) at org.apache.nifi.cluster.manager.ProcessGroupsEntityMerger.mergeProcessGroups(ProcessGroupsEntityMerger.java:37) at org.apache.nifi.cluster.coordination.http.endpoints.FlowMerger.mergeResponses(FlowMerger.java:153) at org.apache.nifi.cluster.coordination.http.endpoints.FlowMerger.mergeResponses(FlowMerger.java:46) at org.apache.nifi.cluster.coordination.http.endpoints.AbstractSingleDTOEndpoint.merge(AbstractSingleDTOEndpoint.java:48) at org.apache.nifi.cluster.coordination.http.StandardHttpResponseMapper.mapResponses(StandardHttpResponseMapper.java:188) at org.apache.nifi.cluster.coordination.http.replication.StandardAsyncClusterResponse.getMergedResponse(StandardAsyncClusterResponse.java:219) at org.apache.nifi.cluster.coordination.http.replication.StandardAsyncClusterResponse.awaitMergedResponse(StandardAsyncClusterResponse.java:236) at org.apache.nifi.web.api.ApplicationResource.replicateNodeResponse(ApplicationResource.java:994) at org.apache.nifi.web.api.ApplicationResource.replicate(ApplicationResource.java:962) at org.apache.nifi.web.api.ApplicationResource.replicate(ApplicationResource.java:946) at org.apache.nifi.web.api.ApplicationResource.replicate(ApplicationResource.java:921) at org.apache.nifi.web.api.FlowResource.getFlow(FlowResource.java:371) at sun.reflect.GeneratedMethodAccessor812.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) at org.apache.nifi.web.filter.RequestLogger.doFilter(RequestLogger.java:66) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:59) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate(NiFiAuthenticationFilter.java:83) at org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter(NiFiAuthenticationFilter.java:57) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621) at org.apache.nifi.web.filter.TimerFilter.doFilter(TimerFilter.java:51) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1613) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1593) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1239) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1562) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1141) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:118) at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:561) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:564) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110) at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:258) at org.eclipse.jetty.io.ssl.SslConnection$3.succeeded(SslConnection.java:147) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124) at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:122) at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke(ExecutingExecutionStrategy.java:58) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:201) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:133) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590) at java.lang.Thread.run(Thread.java:748)
This appears to be due to believing that the Bulletin will be set in the BulletinEntity, but DtoFactory creates a bulletin thus:
public BulletinEntity createBulletinEntity(final BulletinDTO dto, final boolean canRead) { final BulletinEntity entity = new BulletinEntity(); if (dto != null) { entity.setId(dto.getId()); entity.setSourceId(dto.getSourceId()); entity.setGroupId(dto.getGroupId()); entity.setTimestamp(dto.getTimestamp()); entity.setNodeAddress(dto.getNodeAddress()); entity.setCanRead(canRead); if (canRead) { entity.setBulletin(dto); } } return entity; }
So the bulletin may not be populated
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