This looks similar to something people are seeing with email-ext with the latest as well. If you don't have anything company secret, would you be willing to zip up your entire Jenkins home and post it somewhere?
Sent from my Windows Phone ------------------------------ From: Chris Jones Sent: 1/24/2013 3:46 AM To: jenkinsci-users@googlegroups.com Subject: Jenkins fails to send email This same Jenkins installation is acting really weird -- sometimes the "Loading" overlay doesn't disappear, covering the configuration screen and preventing me from making changes. If I restart Jenkins, sometimes it works. It's been acting that way ever since I installed it yesterday. System is RedHat 6.1, 64-bit. JVM is OpenJDK 1.6.0_20-b20. Here are the installed plugins: mailer 1.4 false false external-monitor-job 1.1 false false ldap 1.2 false true pam-auth 1.0 false false instant-messaging 1.25 true false jabber 1.25 true false ant 1.1 false false javadoc 1.0 false false saferestart 0.2 true false ssh-slaves 0.22 false false cvs 2.7 false true role-strategy 1.1.2 true false translation 1.10 false true subversion 1.45 true true active-directory 1.30 true false maven-plugin ERROR: Processing failed due to a bug in the code. Please report this to jenkinsci-us...@googlegroups.comjava.lang.NullPointerException <http://stacktrace.jenkins-ci.org/search?query=java.lang.NullPointerException> at hudson.tasks.MailSender.createEmptyMail(MailSender.java:312) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.createEmptyMail&entity=method> at hudson.tasks.MailSender.createUnstableMail(MailSender.java:188) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.createUnstableMail&entity=method> at hudson.tasks.MailSender.getMail(MailSender.java:159) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.getMail&entity=method> at hudson.tasks.MailSender.execute(MailSender.java:100) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.execute&entity=method> at hudson.maven.reporters.MavenMailer.end(MavenMailer.java:55) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.reporters.MavenMailer.end&entity=method> at hudson.maven.AbstractMavenBuilder.end(AbstractMavenBuilder.java:103) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.AbstractMavenBuilder.end&entity=method> at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:758) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun&entity=method> at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:592) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.run&entity=method> at hudson.model.Run.execute(Run.java:1543) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Run.execute&entity=method> at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild.run&entity=method> at hudson.model.ResourceController.execute(ResourceController.java:88) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.ResourceController.execute&entity=method> at hudson.model.Executor.run(Executor.java:236) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Executor.run&entity=method> ...and later in the same log: FATAL: nulljava.lang.NullPointerException <http://stacktrace.jenkins-ci.org/search?query=java.lang.NullPointerException> at hudson.tasks.MailSender.createEmptyMail(MailSender.java:312) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.createEmptyMail&entity=method> at hudson.tasks.MailSender.createUnstableMail(MailSender.java:188) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.createUnstableMail&entity=method> at hudson.tasks.MailSender.getMail(MailSender.java:159) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.getMail&entity=method> at hudson.tasks.MailSender.execute(MailSender.java:100) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.MailSender.execute&entity=method> at hudson.maven.reporters.MavenMailer.end(MavenMailer.java:55) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.reporters.MavenMailer.end&entity=method> at hudson.maven.AbstractMavenBuilder.end(AbstractMavenBuilder.java:103) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.AbstractMavenBuilder.end&entity=method> at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:758) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun&entity=method> at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:592) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.run&entity=method> at hudson.model.Run.execute(Run.java:1543) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Run.execute&entity=method> at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild.run&entity=method> at hudson.model.ResourceController.execute(ResourceController.java:88) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.ResourceController.execute&entity=method> at hudson.model.Executor.run(Executor.java:236) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Executor.run&entity=method>
