The type of the Unsafe base offset constant is int, which may cause overflow when adding int offsets, such as 8343925 (PR #22012). 8343984 (PR #22027) fixes most of the offset overflows in JDK, but ArraysSupport and CRC32C are still unfixed.
@liach proposed the idea of changing the Unsafe base offset to long, which is a complete solution to the Unsafe offset overflow. After discussing with @liach, I submitted this PR to implement @liach's idea. ------------- Commit messages: - long Unsafe offset Changes: https://git.openjdk.org/jdk/pull/22095/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22095&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8344168 Stats: 70 lines in 21 files changed: 0 ins; 0 del; 70 mod Patch: https://git.openjdk.org/jdk/pull/22095.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22095/head:pull/22095 PR: https://git.openjdk.org/jdk/pull/22095
