javax.servlet.ServletException: java.lang.NullPointerException org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:605) org.kohsuke.stapler.Stapler.invoke(Stapler.java:648) org.kohsuke.stapler.Stapler.invoke(Stapler.java:477) org.kohsuke.stapler.Stapler.service(Stapler.java:159) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:95) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) cause mère java.lang.NullPointerException org.jenkins_ci.plugins.pegdown_formatter.ExtensionUtils.combineFlags(ExtensionUtils.java:56) org.jenkins_ci.plugins.pegdown_formatter.ExtensionUtils.toFlags(ExtensionUtils.java:50) org.jenkins_ci.plugins.pegdown_formatter.PegDownFormatter.(PegDownFormatter.java:56) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:532) org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:424) org.kohsuke.stapler.RequestImpl.access$300(RequestImpl.java:76) org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:631) org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:377) org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:373) hudson.security.GlobalSecurityConfiguration.configure(GlobalSecurityConfiguration.java:68) jenkins.model.Jenkins.configureDescriptor(Jenkins.java:2620) jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2583) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:616) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:288) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:151) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:90) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:111) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:563) org.kohsuke.stapler.Stapler.invoke(Stapler.java:648) org.kohsuke.stapler.Stapler.invoke(Stapler.java:477) org.kohsuke.stapler.Stapler.service(Stapler.java:159) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:95) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)