Null pointer exception in ExtendedEmailPublisher after updated jenkins it's plugin and build script- Jenkins ver. 1.536 - Email Extension Plugin ver. 2.35.1

[mubbashir]

Hi guys, 

Today I had updated jenkins and it's plugin, after the update I am getting some weird exception as soon as jenkins is done with scm This will only happen if the build script of a job is updated.

After updating the build script I wasn't able to save the job (see below the exception 1 )

- I open the advance option of the editable email and there were couple of empty values in the triggers advance option

- I deleted all the triggers, added new triggers

- I was able to save the the job

- On  executing the build I got null pointer exception  (see below the exception 2 , couldn't find the complete stack trace)

I removed the editable email notifications from post build actions run the build it worked fine. 

I got the same null pointer exception on adding the editable email notification again. 

Any thoughts?

_____

Exception 1 (unable to save the job):

Oops!

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Stack trace

javax.servlet.ServletException: java.lang.RuntimeException: Failed to instantiate class hudson.plugins.emailext.ExtendedEmailPublisher from {"project_recipient_list":"$DEFAULT_RECIPIENTS","project_replyto":"$DEFAULT_RECIPIENTS","project_content_type":"default","project_default_subject":"$DEFAULT_SUBJECT","project_default_content":"$DEFAULT_CONTENT","project_attachments":"","project_attach_buildlog":"0","project_presend_script":"","project_save_output":false,"project_triggers":[{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""}],"stapler-class":"hudson.plugins.emailext.ExtendedEmailPublisher","kind":"hudson.plugins.emailext.ExtendedEmailPublisher"}
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:777)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:841)
at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:248)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:727)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:841)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:630)
at org.kohsuke.stapler.Stapler.service(Stapler.java:224)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:174)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at jenkins.security.ApiTokenFilter.doFilter(ApiTokenFilter.java:64)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.RuntimeException: Failed to instantiate class hudson.plugins.emailext.ExtendedEmailPublisher from {"project_recipient_list":"$DEFAULT_RECIPIENTS","project_replyto":"$DEFAULT_RECIPIENTS","project_content_type":"default","project_default_subject":"$DEFAULT_SUBJECT","project_default_content":"$DEFAULT_CONTENT","project_attachments":"","project_attach_buildlog":"0","project_presend_script":"","project_save_output":false,"project_triggers":[{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""}],"stapler-class":"hudson.plugins.emailext.ExtendedEmailPublisher","kind":"hudson.plugins.emailext.ExtendedEmailPublisher"}
at hudson.model.Descriptor.newInstance(Descriptor.java:578)
at hudson.model.Descriptor.newInstancesFromHeteroList(Descriptor.java:916)
at hudson.model.Descriptor.newInstancesFromHeteroList(Descriptor.java:901)
at hudson.util.DescribableList.rebuildHetero(DescribableList.java:203)
at hudson.model.Project.submit(Project.java:208)
at hudson.model.Job.doConfigSubmit(Job.java:1136)
at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:787)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:297)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:160)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:95)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:120)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:727)
... 61 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.plugins.emailext.ExtendedEmailPublisher from {"project_recipient_list":"$DEFAULT_RECIPIENTS","project_replyto":"$DEFAULT_RECIPIENTS","project_content_type":"default","project_default_subject":"$DEFAULT_SUBJECT","project_default_content":"$DEFAULT_CONTENT","project_attachments":"","project_attach_buildlog":"0","project_presend_script":"","project_save_output":false,"project_triggers":[{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""}],"stapler-class":"hudson.plugins.emailext.ExtendedEmailPublisher","kind":"hudson.plugins.emailext.ExtendedEmailPublisher"}
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:589)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:400)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:396)
at hudson.model.Descriptor.newInstance(Descriptor.java:569)
... 77 more
Caused by: java.lang.IllegalArgumentException: Failed to convert the project_triggers parameter of the constructor public hudson.plugins.emailext.ExtendedEmailPublisher(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,int,java.lang.String,boolean,java.util.List,hudson.plugins.emailext.MatrixTriggerMode)
at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:686)
at org.kohsuke.stapler.RequestImpl.access$100(RequestImpl.java:81)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:587)
... 80 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.plugins.emailext.plugins.EmailTrigger from {"stapler-class":"","kind":""}
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:589)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:634)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:400)
at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:684)
... 82 more
Caused by: java.lang.IllegalArgumentException: Class is specified in JSON, but no such class found in classLoader hudson.PluginManager$UberClassLoader
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:583)
... 85 more
Caused by: java.lang.ClassNotFoundException: 
at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:985)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:578)
... 85 more

Exception 2 (unable to execute the job)

WARNING: Publisher hudson.plugins.emailext.ExtendedEmailPublisher aborted due to exception

java.lang.NullPointerException

        at hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:243)

        at hudson.plugins.emailext.ExtendedEmailPublisher.perform(ExtendedEmailPublisher.java:232)

        at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)

        at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:781)

        at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:753)

        at hudson.model.Build$BuildExecution.cleanUp(Build.java:192)

        at hudson.model.Run.execute(Run.java:1710)

        at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)

        at hudson.model.ResourceController.execute(ResourceController.java:88)

        at hudson.model.Executor.run(Executor.java:230)

[Daniel Beck]

I think we had this just yesterday, try removing and adding the email-ext publisher, then make sure to add a trigger (e.g. 'Success').

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[mubbashir]

I tried the same after posting to the mailing list, didn't help :( 

It actually went back to the same thing where I wasn't able to save the job :(

[Slide]

Seems like something from the form is not making it through to the post with the values for the DataBoundConstructor of the triggers.

"project_triggers":[{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""},{"stapler-class":"","kind":""}]

I'm not familiar enough with stapler to know why that could happen.

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[Ulli Hafner]

I'm not sure if this is related but it seems that 1.536 changed the JSON binding (Jenkins core) which also breaks my plug-ins: https://issues.jenkins-ci.org/browse/JENKINS-20199

Ulli

[Ahmed Mubbashir Khan]

Version 2.36 seems to have fixed it.

https://wiki.jenkins-ci.org/display/JENKINS/Email-ext+plugin

Regards,
----------------------------------
Ahmed Mubbashir Khan
"I don't make Software, I make it better"

http://about.me/mubbashir