In the build process, unwanted UL error/warning messages can pollute stdout and influence the build process/results.
An example is the polluted blocked.certs file from https://bugs.openjdk.org/browse/JDK-8357691 . ------------- Commit messages: - JDK-8368960 Changes: https://git.openjdk.org/jdk/pull/27588/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27588&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8368960 Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/27588.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27588/head:pull/27588 PR: https://git.openjdk.org/jdk/pull/27588
