Hi David,
The "fake exception" was never meant to give you a stack trace, but only
indicate which line the failure happened at. Unfortunately you are hitting:
void exitOnError(jvmtiError error) {
if (!NSK_JVMTI_VERIFY(error)) {
exit(error);
}
}
So this isn't really the point of failure, just a detection of it after,
and buried in a C call. An example of the "fake exception" doing better
would be https://bugs.openjdk.java.net/browse/JDK-8224555:
# ERROR: tc02t001.cpp, 126: line == lines[enterEventsCount] || line ==
(lines[enterEventsCount] + 1)
# verified assertion is FALSE
if (!NSK_VERIFY(line == lines[enterEventsCount] ||
line == (lines[enterEventsCount] + 1))) {
I haven't looked at NSK_JVMTI_VERIFY yet, but possibly it could do
better, and maybe exitOnError would play a role in that (would need to
be macroized) so we know who is calling exitOnError().
Chris
On 11/4/19 3:10 PM, David Holmes wrote:
I'm investigating some JVM TI scenario test failures following a
change I made in hotspot. The log shows:
The following fake exception stacktrace is for failure analysis.
nsk.share.Fake_Exception_for_RULE_Creation: (jvmti_tools.cpp:683) error
at nsk_lvcomplain(nsk_tools.cpp:172)
# ERROR: jvmti_tools.cpp, 683: error
# jvmti error: code=52, name=JVMTI_ERROR_INTERRUPT
and that is it. This stacktrace is completely useless as it doesn't
show from where nsk_lvcomplain is called!
Does anyone know how this is supposed to work and whether there is
some way for me to get a real stacktrace?
Thanks,
David
