**Overview:** This test primarily focuses on the verifying the SOURCE value in the Oracle provided OpenJDK build. In the cases except these, in order for the SOURCE value to be more flexible, there have been process added where the SOURCE value is empty.
**Confirmation of the program after the fix:** After Fix CheckReleaseFile.java was verified against various SOURCE values, including both empty and non-empty cases, to ensure that it processes them correctly. The verification was performed using both internally built OpenJDK and Oracle's OpenJDK build. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Initial Commit Changes: https://git.openjdk.org/jdk/pull/31399/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=31399&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8385987 Stats: 5 lines in 1 file changed: 1 ins; 0 del; 4 mod Patch: https://git.openjdk.org/jdk/pull/31399.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/31399/head:pull/31399 PR: https://git.openjdk.org/jdk/pull/31399
