This is a copy of https://github.com/openjdk/jdk17/pull/100 so that I can integrate the fix for @seanjmullan.
------------- Commit messages: - [BACKOUT] JDK-8196415 Disable SHA-1 Signed JARs. Changes: https://git.openjdk.java.net/jdk17/pull/113/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk17&pr=113&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8267100 Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod Patch: https://git.openjdk.java.net/jdk17/pull/113.diff Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/113/head:pull/113 PR: https://git.openjdk.java.net/jdk17/pull/113