IDEA-154721 [follow-up] sun.lwawt.macosx.CAccessible leaks

- Fixed a crash in [JavaComponentAccessibility createWithAccessible].
- Revered the changes related to weak JNI wrapping. The (assumed, not specified) theory is that a weak JNI ref, as it's passed to Java, is atomically turns into either a strong java ref or null.
6 files changed