On Fri, 7 Oct 2022 19:54:54 GMT, Kevin Walls <kev...@openjdk.org> wrote:
> There are a few changes we can make to better understand the LingeredApp test
> when it goes wrong:
>
> startAppExactJvmOpts() should not try and call finishApp unless the process
> isAlive, that just creates a misleading exception.
>
> waitAppReady() is really waitAppReadyOrCrashed(), and should not timeout
> immediately after the 1 second sleep, or we lose a second of our timeout
> value (not critical with a long timeout, but seems more honest).
>
> Show how long we waited when startup/crashing times out.
>
> Show how long a good startup takes, so we have a basic for comparison when it
> fails.
>
> Show if there are hs_err/core/mdmp files in the working directory after
> startup/crash attempt.
>
> Also, in open/test/lib/jdk/test/lib/util/CoreUtils.java:
>
> "Move core file" often seems unnecessary, core/mdmp usually being created in
> the current directory. But getCoreFileLocation() performs Files.move() which
> takes enough time to not be a no-op.
test/lib/jdk/test/lib/apps/LingeredApp.java line 480:
> 478: FilenameFilter filter = (dir, file) ->
> (file.startsWith("hs_err_pid") || file.startsWith("core") ||
> file.endsWith("mdmp"));
> 479: for (File f : new File(".").listFiles(filter)) {
> 480: System.out.println(f);
Printing the size can be useful for core files.
-------------
PR: https://git.openjdk.org/jdk/pull/10613
