I was using the updated Zephyr for JIRA plug-in.  

It was working fine.  But all of a sudden, I started getting the following error:
Recording test results
[ZapiTestResultReporter] [INFO] Examining test results...
Build result is FAILURE
Total Test Cases : 6ERROR: Build step failed with exception
java.lang.NullPointerException
at com.thed.zephyr.jenkins.utils.rest.TestCaseUtil.executeTests(TestCaseUtil.java:404)
at com.thed.zephyr.jenkins.utils.rest.TestCaseUtil.processTestCaseDetails(TestCaseUtil.java:564)
at com.thed.zephyr.jenkins.reporter.ZfjReporter.perform(ZfjReporter.java:99)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:736)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:682)
at hudson.model.Build$BuildExecution.post2(Build.java:186)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:627)
at hudson.model.Run.execute(Run.java:1762)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:421)
Build step 'Publish test result to Zephyr for JIRA' marked build as failure
Finished: FAILURE