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From "Brian Ghigiarelli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-535) Cannot create templates from nested processor groups
Date Wed, 22 Apr 2015 14:24:58 GMT

    [ https://issues.apache.org/jira/browse/NIFI-535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14507155#comment-14507155
] 

Brian Ghigiarelli commented on NIFI-535:
----------------------------------------

Following the stacktraces, the X position in the PositionDTO is a null Double object and is
throwing the NPE when auto unboxing [here|https://github.com/apache/incubator-nifi/blob/f6d9354bfb08a2351aca0b5f2356b766f7e5550e/nifi/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/util/SnippetUtils.java#L197].

> Cannot create templates from nested processor groups
> ----------------------------------------------------
>
>                 Key: NIFI-535
>                 URL: https://issues.apache.org/jira/browse/NIFI-535
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 0.1.0
>         Environment: Mac OSX Yosemite 10.10.3
> Java 1.8 u31
>            Reporter: Brian Ghigiarelli
>
> From the latest 'develop' branch, NiFi throws an exception when we attempt to create
a template from nested processor groups.
> Steps to reproduce (done from both an empty canvas and a canvas with existing processors
/ groups):
> # Add a processor group called "Outer"
> # Navigate into "Outer"
> # Add a GetFile processor
> # Add a processor group "Inner"
> # Navigate into "Inner"
> # Add a processor "PutFile"
> # Navigate back to the top-level canvas
> # Select the "Outer" processor group
> # Click the "Create Template" button in the middle of the toolbar
> # Enter a name and click the "Create" button
> # The UI redirects to the error page with the display: "An unexpected error has occurred.
Please check the logs for additional details."
> So, the hierarchy of processors / groups is:
> * Outer
> ** GetFile
> ** Inner
> *** PutFile
> The nifi-user.log file contains a single stacktrace for this error:
> {code}
> 2015-04-22 10:06:49,994 ERROR [NiFi Web Server-18] 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.util.SnippetUtils.addControllerServicesToSnippet(SnippetUtils.java:197)
~[classes/:na]
>         at org.apache.nifi.web.util.SnippetUtils.addControllerServicesToSnippet(SnippetUtils.java:203)
~[classes/:na]
>         at org.apache.nifi.web.util.SnippetUtils.addControllerServicesToSnippet(SnippetUtils.java:203)
~[classes/:na]
>         at org.apache.nifi.web.util.SnippetUtils.populateFlowSnippet(SnippetUtils.java:191)
~[classes/:na]
>         at org.apache.nifi.web.StandardNiFiServiceFacade$27.execute(StandardNiFiServiceFacade.java:996)
~[classes/:0.1.0-incubating-SNAPSHOT]
>         at org.apache.nifi.web.StandardNiFiServiceFacade$27.execute(StandardNiFiServiceFacade.java:985)
~[classes/:0.1.0-incubating-SNAPSHOT]
>         at org.apache.nifi.web.StandardOptimisticLockingManager.configureFlow(StandardOptimisticLockingManager.java:84)
~[nifi-web-optimistic-locking-0.1.0-incubating-SNAPSHOT.jar:0.1.0-incubating-SNAPSHOT]
>         at org.apache.nifi.web.StandardNiFiServiceFacade.createSnippet(StandardNiFiServiceFacade.java:985)
~[classes/:0.1.0-incubating-SNAPSHOT]
>         at org.apache.nifi.web.StandardNiFiServiceFacade$$FastClassBySpringCGLIB$$358780e0.invoke(<generated>)
~[spring-core-4.1.4.RELEASE.jar:0.1.0-incubating-SNAPSHOT]
>         at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.apache.nifi.web.NiFiServiceFacadeLock.createLock(NiFiServiceFacadeLock.java:40)
~[classes/:0.1.0-incubating-SNAPSHOT]
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_31]
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_31]
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_31]
>         at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_31]
>         at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:68)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.apache.nifi.web.StandardNiFiServiceFacade$$EnhancerBySpringCGLIB$$684a2a06.createSnippet(<generated>)
~[spring-core-4.1.4.RELEASE.jar:0.1.0-incubating-SNAPSHOT]
>         at org.apache.nifi.web.api.SnippetResource.createSnippet(SnippetResource.java:332)
~[classes/:na]
>         at org.apache.nifi.web.api.SnippetResource.createSnippet(SnippetResource.java:263)
~[classes/:na]
>         at org.apache.nifi.web.api.SnippetResource$$FastClassBySpringCGLIB$$527dc323.invoke(<generated>)
~[spring-core-4.1.4.RELEASE.jar:na]
>         at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64)
~[spring-security-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
~[spring-aop-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.apache.nifi.web.api.SnippetResource$$EnhancerBySpringCGLIB$$823b2eb0.createSnippet(<generated>)
~[spring-core-4.1.4.RELEASE.jar:na]
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_31]
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_31]
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_31]
>         at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_31]
>         at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
~[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
[jersey-server-1.19.jar:1.19]
>         at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
[jersey-servlet-1.19.jar:1.19]
>         at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
[jersey-servlet-1.19.jar:1.19]
>         at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
[jersey-servlet-1.19.jar:1.19]
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api-3.1.0.jar:3.1.0]
>         at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808) [jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.apache.nifi.web.filter.NodeRequestFilter.doFilter(NodeRequestFilter.java:91)
[classes/:na]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:83)
[jetty-servlets-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:300) [jetty-servlets-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.apache.nifi.web.filter.RequestLogger.doFilter(RequestLogger.java:67) [classes/:na]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:94)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.apache.nifi.web.security.x509.X509AuthenticationFilter.doFilter(X509AuthenticationFilter.java:121)
[nifi-web-security-0.1.0-incubating-SNAPSHOT.jar:0.1.0-incubating-SNAPSHOT]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.apache.nifi.web.security.authorization.NodeAuthorizedUserFilter.doFilter(NodeAuthorizedUserFilter.java:121)
[nifi-web-security-0.1.0-incubating-SNAPSHOT.jar:0.1.0-incubating-SNAPSHOT]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[spring-web-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
[spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
>         at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
[spring-web-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
[spring-web-4.1.4.RELEASE.jar:4.1.4.RELEASE]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.apache.nifi.web.filter.ThreadLocalFilter.doFilter(ThreadLocalFilter.java:39)
[classes/:na]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.apache.nifi.web.filter.TimerFilter.doFilter(TimerFilter.java:53) [classes/:na]
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
[jetty-security-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
[jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.Server.handle(Server.java:497) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
[jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
[jetty-io-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
[jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
[jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_31]
> {code}



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