This PR adds the exception documentation as per the ExecutorService API contract. I also took the liberty of adding @Override-annotations to be clear about intent.
------------- Commit messages: - 8296543 - adding javadoc for thrown exceptions from AbstractExecutorService methods Changes: https://git.openjdk.org/jdk/pull/18966/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18966&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8296543 Stats: 31 lines in 1 file changed: 31 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18966.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18966/head:pull/18966 PR: https://git.openjdk.org/jdk/pull/18966
