Javatest 4.2.1_b10

- Start the tool
- Open WD, run a few tests.
- File/Create Report, create HTML report based on Last Test Run filter. Verify everything is OK.
- File/Exit. Restart Harness. Open same WD.
- File/Create Report, create HTML report based on Last Test Run filter. You'll see "Unable to create report: null" message. Nothing more.

Problem 1: unexpected exception is caught and kept hidden in harness.
Exception should be printed into console in com.sun.javatest.exec.NewReportDialog.listener.new ActionListener() {...}.doBgReport(Settings)

Problem 2, the main problem: Report is not created.