Moved DelegateGraphics2D to a more appropriate package.
Added tests for SwingTaskExecutor.
Removed unnecessary null check from MemorySensitiveCache.
Removed dead store from ContextAwareWrapperTest
Added a few more tests for AbstractTaskExecutorService.
Removed pointless catch from MultiPhaseTask.
Fixed a problem in InOrderTaskExecutorTest.
Replaced == comparison of Boolean with equals.
Removed unused method from NaturalComparatorTest.
Removed unnecessary call from ExecutorsEx.