javax.servlet.ServletException: java.lang.NullPointerException
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:726)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:777)
	at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:381)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:684)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:777)
	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:239)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:684)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:777)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:586)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:217)
	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:96)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
	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$1.doFilter(ChainedServletFilter.java:84)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:47)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
	at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:227)
	at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
	at java.util.concurrent.Executors$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$1.run(BoundedExecutorService.java:77)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
	at hudson.plugins.testng.TestNGProjectAction.populateDataSetBuilder(TestNGProjectAction.java:220)
	at hudson.plugins.testng.TestNGProjectAction.doGraph(TestNGProjectAction.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:297)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:160)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:95)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:111)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:684)
	... 42 more

analysis-collector	1.36	true	false
analysis-core	1.50	true	false
ant	1.2	true	false
checkstyle	3.35	true	false
credentials	1.4	true	false
cvs	2.9	true	true
external-monitor-job	1.1	true	false
findbugs	4.49	true	false
git	1.4.0	true	false
git-client	1.0.7	true	false
gradle	1.23	true	false
javadoc	1.1	true	false
ldap	1.5	true	true
mailer	1.5	true	false
maven-plugin	1.522	true	false
pam-auth	1.1	true	true
ssh-credentials	0.4	true	true
ssh-slaves	0.27	true	true
subversion	1.50	true	true
testng-plugin	1.2	true	false
translation	1.10	true	false
warnings	4.27	true