$ /opt/jtreg/4.0/linux/bin/jtdiff play/t*/
Error: Unexpected exception occured!
java.lang.NullPointerException
at com.sun.javatest.diff.SimpleReporter.print(SimpleReporter.java:134)
at com.sun.javatest.diff.SimpleReporter.writeI18N(SimpleReporter.java:130)
at com.sun.javatest.diff.SimpleReporter.writeHead(SimpleReporter.java:79)
at com.sun.javatest.diff.SimpleReporter.write(SimpleReporter.java:67)
at com.sun.javatest.diff.Diff.diff(Diff.java:84)
at com.sun.javatest.diff.StandardDiff.report(StandardDiff.java:38)
at com.sun.javatest.diff.Main.run(Main.java:275)
at com.sun.javatest.diff.Main.run(Main.java:251)
at com.sun.javatest.diff.Main.main(Main.java:197)