At multiple places in native glass code we don't have appropriate NULL checks which might result in null pointer access.
Added appropriate checks and all test run is green. ------------- Commit messages: - 8315074: Possible null pointer access in native glass Changes: https://git.openjdk.org/jfx/pull/1223/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1223&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8315074 Stats: 105 lines in 8 files changed: 70 ins; 7 del; 28 mod Patch: https://git.openjdk.org/jfx/pull/1223.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1223/head:pull/1223 PR: https://git.openjdk.org/jfx/pull/1223
