There is an assert in `JvmtiThreadState::cur_stack_depth()` that tends to slow down single stepping a lot when running the debuggee with a debug jvm. See CR for details. The fix is to allow disabling of this assert using the new EnableJVMTIStackDepthAsserts global, which defaults to true.
------------- Commit messages: - Update copyrights - Get rid of asserts that were added to incr() and decre() in previous commit. - Add EnableJVMTIStackDepthAsserts global to control the enabling of the JVMTI stack depth asserts. Changes: https://git.openjdk.java.net/jdk/pull/1835/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1835&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8258652 Stats: 13 lines in 2 files changed: 8 ins; 0 del; 5 mod Patch: https://git.openjdk.java.net/jdk/pull/1835.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1835/head:pull/1835 PR: https://git.openjdk.java.net/jdk/pull/1835
