Code cleanup.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@477 48fcbb9e-5639-0410-8b25-842128a4905d
Code cleanup.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@478 48fcbb9e-5639-0410-8b25-842128a4905d
Code cleanup (restored compatiblity with Java 6).

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@479 48fcbb9e-5639-0410-8b25-842128a4905d