Hello, I found this in the Jenkins issues:
https://issues.jenkins-ci.org/browse/JENKINS-38057 Take a look at the comments below the issue and you will see a few people ran into this and noticed their JAVA was set to a new JAVA 9 version. Once they set it back to JAVA 7 all was OK. Terry On Sun, Jul 9, 2017 at 12:47 PM, Sivaraman, Ram < [email protected]> wrote: > Hello > > I m new Jenkins. Installed Jenkins to learn a few things about it. I > followed the instructions as described here, > > https://www.tutorialspoint.com/jenkins/jenkins_tomcat_setup.htm > > Installed Jenkins and TomCat 7 as perr the instructions and ran the > startup.bat file, after copying Jenkins.war in C:\Users\<myName>\Downloads\ > apache-tomcat-7.0.79-windows-x86\apache-tomcat-7.0.79\webapps folder. > > Also created a new environment variable for java, JAVA_HOME with the path > for Java. > > As soon as I opened the local address to see if Jenkins can access Tomcat, > I got this error, > > *http://localhost:8080/jenkins <http://localhost:8080/jenkins>* > > > > Please guide me where it went wrong, > > > > //************************************************************************ > > A problem occurred while processing the request. Please check our bug > tracker <https://jenkins.io/redirect/issue-tracker> to see if a similar > problem has already been reported. If it is already reported, please vote > and put a comment on it to let us gauge the impact of the problem. If you > think this is a new issue, please file a new issue. When you file an issue, > make sure to add the entire stack trace, along with the version of Jenkins > and relevant plugins. The users list > <https://jenkins.io/redirect/users-mailing-list> might be also useful in > understanding what has happened. > Stack trace > > java.lang.AssertionError: InstanceIdentity is missing its singleton > > at > org.jenkinsci.main.modules.instance_identity.InstanceIdentity.get(InstanceIdentity.java:133) > > at > org.jenkinsci.main.modules.instance_identity.InstanceIdentityRSAProvider.getKeyPair(InstanceIdentityRSAProvider.java:23) > > at > jenkins.model.identity.InstanceIdentityProvider$KeyTypes.get(InstanceIdentityProvider.java:161) > > at > jenkins.model.identity.InstanceIdentityProvider$KeyTypes.getKeyPair(InstanceIdentityProvider.java:210) > > at > jenkins.model.identity.IdentityRootAction.getUrlName(IdentityRootAction.java:42) > > at jenkins.model.Jenkins.getUnprotectedRootActions(Jenkins.java:4672) > > at > jenkins.model.Jenkins.isSubjectToMandatoryReadPermissionCheck(Jenkins.java:4644) > > at jenkins.model.Jenkins.getTarget(Jenkins.java:4622) > > at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:674) > > at org.kohsuke.stapler.Stapler.invoke(Stapler.java:845) > > 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:841) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650) > > at > hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135) > > at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:138) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:86) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > 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:135) > > 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:92) > > 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$1.doFilter(ChainedServletFilter.java:87) > > at > hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:90) > > at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > at > org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > at > hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > at > org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) > > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) > > at > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) > > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) > > at > org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524) > > at > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) > > at > org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190) > > at > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) > > at > org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188) > > at > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253) > > at > org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168) > > at > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) > > at > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) > > at > org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166) > > at > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155) > > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) > > at > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) > > at org.eclipse.jetty.server.Server.handle(Server.java:564) > > at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:317) > > at > org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) > > at > org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279) > > at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110) > > at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124) > > at > org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128) > > at > org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222) > > at > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294) > > at > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:199) > > at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) > > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > > at java.lang.Thread.run(Unknown Source) > > //********************************************************** > ********************* > > > 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