#1459 [eclipse] NPE when creating Report

[Andreas Dangel]

See https://sourceforge.net/p/pmd/discussion/188193/thread/db0b0408/#b212/600d

Stacktrace:

java.lang.NullPointerException
at net.sourceforge.pmd.eclipse.runtime.cmd.RenderReportsCmd.createViolation(RenderReportsCmd.java:252)
at net.sourceforge.pmd.eclipse.runtime.cmd.RenderReportsCmd.createReport(RenderReportsCmd.java:230)
at net.sourceforge.pmd.eclipse.runtime.cmd.RenderReportsCmd.execute(RenderReportsCmd.java:160)
at net.sourceforge.pmd.eclipse.runtime.cmd.JobCommandProcessor$1.run(JobCommandProcessor.java:90)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)