[JIRA] (JENKINS-37339) Global security throws NullPointerException after installing Slack Plugin

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bhunt@mac.com (JIRA)

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Aug 11, 2016, 8:45:01 AM8/11/16
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Bryan Hunt created an issue
 
Jenkins / Bug JENKINS-37339
Global security throws NullPointerException after installing Slack Plugin
Issue Type: Bug Bug
Assignee: Kurt Madel
Components: slack-plugin
Created: 2016/Aug/11 12:44 PM
Environment: Jenkins 2.7.2 Slack plugin 2.0.1
Priority: Major Major
Reporter: Bryan Hunt

After installing the slack plugin, if you navigate to the Global Security configuration page, you get a NullPointerException and global security is no longer configurable.
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bhunt@mac.com (JIRA)

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Aug 11, 2016, 9:46:01 AM8/11/16
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Bryan Hunt commented on Bug JENKINS-37339
 
Re: Global security throws NullPointerException after installing Slack Plugin 
javax.servlet.ServletException: java.lang.NullPointerException
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:796)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:86)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	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 jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93)
	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$1.doFilter(ChainedServletFilter.java:87)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
	at jenkins.plugins.slack.webhook.WebhookEndpoint.getUrlName(WebhookEndpoint.java:51)
	at jenkins.model.Jenkins.getDynamic(Jenkins.java:3344)
	at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:324)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:167)
	at org.kohsuke.stapler.MetaClass$11.dispatch(MetaClass.java:378)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
	... 54 more

alex@workpop.com (JIRA)

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Aug 18, 2016, 5:23:03 PM8/18/16
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Kurt Madel any updates on this?

info@martinklinke.com (JIRA)

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Sep 14, 2016, 4:44:01 AM9/14/16
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I have also installed the Slack Plugin and now not even the login page of Jenkins works. The stack trace is similar to the one mentioned in the "Caused by" section, at least it's also the call to WebhookEndpoint.getUrlName where the NPE occurs.

info@martinklinke.com (JIRA)

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Sep 14, 2016, 4:47:02 AM9/14/16
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However, I have deactivated the plugin and reactivated it upon restart (which caused another restart). Now it seems to be working. I can also open the Global Security page without problems.

ryankersh@gmail.com (JIRA)

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Oct 20, 2016, 7:29:01 PM10/20/16
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We installed the plugin for the first time today and ran into the same issue. Jenkins ver. 1.642.4, Slack Notification Plugin 2.0.1. I disabled the plugin and restarted, which got rid of the problem. We'll wait to enable it.

bhunt@mac.com (JIRA)

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Oct 20, 2016, 9:07:01 PM10/20/16
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I believe the plugin works just fine after a restart. I've been running it without problems after a restart.

peter.grape@scania.com (JIRA)

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Nov 18, 2016, 4:35:01 AM11/18/16
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Same here, a restart solves this issue.

kmadel@cloudbees.com (JIRA)

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Oct 7, 2018, 11:34:02 AM10/7/18
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Change By: Kurt Madel
Status: Open Fixed but Unreleased
Resolution: Fixed
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timjacomb1@gmail.com (JIRA)

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Nov 30, 2018, 5:19:04 AM11/30/18
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Change By: Tim Jacomb
Status: Fixed but Unreleased Resolved
Released As: 2.4
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