Looking for TestNG results report in workspace using pattern: */.xml
ERROR: Publisher hudson.plugins.testng.Publisher aborted due to exception
java.lang.NullPointerException
at hudson.plugins.testng.parser.ResultsParser.finishSuite(ResultsParser.java:267)
at hudson.plugins.testng.parser.ResultsParser.parse(ResultsParser.java:166)
at hudson.plugins.testng.TestNGBuildAction.loadResults(TestNGBuildAction.java:105)
at hudson.plugins.testng.Publisher.perform(Publisher.java:103)
at hudson.tasks.BuildStepMonitor$2.perform(BuildStepMonitor.java:27)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:694)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:669)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:647)
at hudson.model.Build$RunnerImpl.post2(Build.java:162)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:616)
at hudson.model.Run.run(Run.java:1429)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)

I have other jobs that are configured in the same way (cloned the failing one) and these jobs are not failing (no exception is thrown).