On Windows debug build execution of `DrawFocusRect()` may cause an assertion failure. In particular if a component, which is going to gain a focus, has zero size, the function returns `0` because focus rectangle is empty.
It is necessary to check that the focus rectangle is not empty before `DrawFocusRect()` call. ------------- Commit messages: - 8346887: DrawFocusRect() may cause an assertion failure Changes: https://git.openjdk.org/jdk/pull/22973/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22973&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8346887 Stats: 7 lines in 3 files changed: 0 ins; 0 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/22973.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22973/head:pull/22973 PR: https://git.openjdk.org/jdk/pull/22973
