[ 
https://issues.apache.org/jira/browse/NIFI-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14989926#comment-14989926
 ] 

Tony Kurc edited comment on NIFI-1098 at 11/4/15 5:12 PM:
----------------------------------------------------------

behavior before:

UI reports:
{noformat}
Configuration Error
Unable to get UpdateAttribute[id=279433cb-e7e2-4fbe-a02e-33ddc8ff19d6] 
criteria: java.lang.NullPointerException
{noformat}

Stack trace in log:
{noformat}
2015-11-04 11:59:33,176 ERROR [NiFi Web Server-20] 
o.a.n.update.attributes.api.RuleResource Unable to get 
UpdateAttribute[id=279433cb-e7e2-4fbe-a02e-33ddc8ff19d6] criteria: ja
va.lang.NullPointerException
java.lang.NullPointerException: null
        at 
org.apache.nifi.update.attributes.api.RuleResource.getCriteria(RuleResource.java:599)
 [classes/:na]
        at 
org.apache.nifi.update.attributes.api.RuleResource.searchRules(RuleResource.java:419)
 [classes/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
~[na:1.8.0_45]
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[na:1.8.0_45]
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[na:1.8.0_45]
        at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45]
        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.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-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
 [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:107)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.apache.nifi.web.security.x509.X509AuthenticationFilter.doFilter(X509AuthenticationFilter.java:111)
 [nifi-web-security-0.3.1-SNAPSHOT.jar:0.3.1-SNAPSHOT]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.apache.nifi.web.security.authorization.NodeAuthorizedUserFilter.doFilter(NodeAuthorizedUserFilter.java:121)
 [nifi-web-security-0.3.1-SNAPSHOT.jar:0.3.1-SNAPSHOT]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
 [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) 
[jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) 
[jetty-security-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) 
[jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at org.eclipse.jetty.server.Server.handle(Server.java:499) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
[jetty-io-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
 [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) 
[jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
{noformat}


was (Author: tkurc):
behavior before:

UI reports:
{noformat}
Configuration Error
Unable to get UpdateAttribute[id=279433cb-e7e2-4fbe-a02e-33ddc8ff19d6] 
criteria: java.lang.NullPointerException
{noformat}

{noformat}
2015-11-04 11:59:33,176 ERROR [NiFi Web Server-20] 
o.a.n.update.attributes.api.RuleResource Unable to get 
UpdateAttribute[id=279433cb-e7e2-4fbe-a02e-33ddc8ff19d6] criteria: ja
va.lang.NullPointerException
java.lang.NullPointerException: null
        at 
org.apache.nifi.update.attributes.api.RuleResource.getCriteria(RuleResource.java:599)
 [classes/:na]
        at 
org.apache.nifi.update.attributes.api.RuleResource.searchRules(RuleResource.java:419)
 [classes/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
~[na:1.8.0_45]
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[na:1.8.0_45]
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[na:1.8.0_45]
        at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45]
        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.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-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
 [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:107)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.apache.nifi.web.security.x509.X509AuthenticationFilter.doFilter(X509AuthenticationFilter.java:111)
 [nifi-web-security-0.3.1-SNAPSHOT.jar:0.3.1-SNAPSHOT]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.apache.nifi.web.security.authorization.NodeAuthorizedUserFilter.doFilter(NodeAuthorizedUserFilter.java:121)
 [nifi-web-security-0.3.1-SNAPSHOT.jar:0.3.1-SNAPSHOT]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
 [spring-security-web-3.2.7.RELEASE.jar:3.2.7.RELEASE]
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
 [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
 [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) 
[jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) 
[jetty-security-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) 
[jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
 [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at org.eclipse.jetty.server.Server.handle(Server.java:499) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) 
[jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
[jetty-io-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
 [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529]
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) 
[jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
{noformat}

> "Copy from existing rule (optional)" not working in Advanced tab of 
> UpdateAttribute processor
> ---------------------------------------------------------------------------------------------
>
>                 Key: NIFI-1098
>                 URL: https://issues.apache.org/jira/browse/NIFI-1098
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core UI
>    Affects Versions: 0.3.0
>            Reporter: Matthew Clarke
>            Assignee: Matt Gilman
>             Fix For: 0.4.0
>
>         Attachments: 0001-NIFI-1098.patch
>
>
> "Copy from existing rule (optional)" not working in Advanced tab of 
> UpdateAttribute processor in the "New Rule" pop-up window.



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