javax.servlet.ServletException: java.lang.NullPointerException
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javax.servlet.ServletException: java.lang.NullPointerExceptionat org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:796)at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249)at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249)at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249)at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)at org.kohsuke.stapler.Stapler.service(Stapler.java:238)at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:201)at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:178)at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:85)at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:102)at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:129)at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:123)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)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)