With try/finally ensure final synchronized block is called, which sets q_ to null when last/only job.
With try/finally ensure final synchronized block is called, which sets q_ to null when last/only job.

foam-framework/foam2,foam-framework/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,jacksonic/vjlofvhjfgm,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2