"java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location" is thrown when getLocationOnScreen method is invoked for JTableHeader while testing JFileChooser demo. It seems that in getLocationOfScreen method we are trying to access the parent location but that is not visible and ICSE is thrown.
Fix is to handle the exception and can be verified using the steps mentioned in [JDK-8332550](https://bugs.openjdk.org/browse/JDK-8332550). CI testing is green and link is mentioned in JBS. ------------- Commit messages: - IllegalComponentStateException fix Changes: https://git.openjdk.org/jdk/pull/19391/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19391&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8332550 Stats: 10 lines in 1 file changed: 9 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/19391.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19391/head:pull/19391 PR: https://git.openjdk.org/jdk/pull/19391
