_JFilechooser_ returns _null_ for Approve button tool tip in `CUSTOM_DIALOG` mode (`getToolTipText()`). The fallback text has been set to "Choose" text. Observation found in validating the test of PR - #11901.
------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/12198/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12198&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8300549 Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/12198.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12198/head:pull/12198 PR: https://git.openjdk.org/jdk/pull/12198
