MODE-2272 Java Sequencer Should Be Thread-Safe
The JavaFileSequencer was holding state by a field referencing the source file recorder. I removed that field and now the sequencer creates a new JdtRecorder each time JavaFileSequencer.execute is called. Also removed some constants and a method that was not being used. Test case also added. However, on rare occasions, running the test case in Eclipse still throws the NodeNotFoundInParentExceptiondocumented in the issue.
Test case is now being ignored.
Merge pull request #1201 from elvisisking/MODE-2272

MODE-2272 Java Sequencer Should Be Thread-Safe