serviceability/sa/TestJhsdbJstackMixedWithXComp.java#xcomp failed due because stderr has message to report DebuggerException caused by unknown DWARF opcode.
During the discussion, we've reached the conclusion that it is better to add `print_waring()` to notice this case (it is handled in [JDK-8392120](https://bugs.openjdk.org/browse/JDK-8392120): PR #33047), and the exception should not be shown in normal. Thus this PR proposes to show DebuggerException when `LIBSAPROC_DEBUG` environment variable is set in mixed jstack. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8392132: Test serviceability/sa/TestJhsdbJstackMixedWithXComp.java#xcomp failed: Could not find PC in DWARF Changes: https://git.openjdk.org/jdk/pull/33048/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33048&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8392132 Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/33048.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33048/head:pull/33048 PR: https://git.openjdk.org/jdk/pull/33048
