Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via nabble.com by Unknown author, 2 years ago
java.lang.ClassCastException: net.sf.json.JSONNull cannot be cast to net.sf.json.JSONObject
via Google Groups by glsil...@pssd.com, 2 years ago
java.lang.ClassCastException: net.sf.json.JSONNull cannot be cast to net.sf.json.JSONObject
via Jenkins JIRA by Martin Zellner, 2 years ago
java.lang.RuntimeException: Failed to serialize hudson.model.Actionable#actions for class hudson.model.FreeStyleBuild
via Jenkins JIRA by Martin Zellner, 2 years ago
java.lang.RuntimeException: Failed to serialize hudson.model.Actionable#actions for class hudson.model.FreeStyleBuild
via Jenkins JIRA by Jason Spotswood, 1 year ago
java.lang.ClassCastException: net.sf.json.JSONNull cannot be cast to net.sf.json.JSONObject
via Jenkins JIRA by Jason Spotswood, 2 years ago
java.lang.ClassCastException: net.sf.json.JSONNull cannot be cast to net.sf.json.JSONObject
javax.servlet.ServletException: java.lang.ClassCastException: net.sf.json.JSONNull cannot be cast to net.sf.json.JSONObject at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:719) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:770) at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:384) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:677) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:770) at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:241) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:677) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:770) at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:241) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:677) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:770) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:583) at org.kohsuke.stapler.Stapler.service(Stapler.java:214) at javax.servlet.http.HttpServlet.service(HttpServlet.java:45) at winstone.ServletConfiguration.execute(ServletConfiguration.java:248) at winstone.RequestDispatcher.forward(RequestDispatcher.java:333) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:95) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:50) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at winstone.RequestDispatcher.forward(RequestDispatcher.java:331) at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:227) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:636)