Bug 447088 - [null] @Nullable on fully qualified field type is ignored

Change-Id: If6c26a31b43e484ae42195c441b49ef43d2108e7
Signed-off-by: Stephan Herrmann <stephan.herrmann@berlin.de>
Fix for bug 449619 + bug 448799 + bug 401850
Bug 429940 - Delete unused method.