The following test frequently times out in the slowdebug config
during my stress testing:

java/util/stream/boottest/java.base/java/util/stream/SpinedBufferTest.java

Here are snippets from the log file:

#section:testng
----------messages:(6/300)----------
command: testng java.base/java.util.stream.SpinedBufferTest
reason: Assumed action based on file name: run testng java.base/java.util.stream.SpinedBufferTest
Mode: othervm [test or library overrides a system module]
Timeout information:
--- Timeout information end.
elapsed time (seconds): 1527.202
----------configuration:(6/539)----------


<snip>

test java.util.stream.SpinedBufferTest.testSpliterator([I@58545962, java.util.stream.SpinedBuffer@233385f4): success
test java.util.stream.SpinedBufferTest.testSpliterator([I@58545962, java.util.stream.SpinedBuffer@6273ca5): success
test java.util.stream.SpinedBufferTest.testSpliterator([I@f7833ca, java.util.stream.SpinedBuffer@5c8ad794): success
----------System.err:(0/0)----------
----------rerun:(41/5940)*----------

<snip>

result: Error. Program `/System/Volumes/Data/work/shared/bug_hunt/thread_SMR_stress/jdk20_exp.git/build/macosx-aarch64-normal-server-slowdebug/images/jdk/bin/java' timed out (timeout set to 1440000ms, elapsed time including timeout handling was 1527198ms).