The following test timed out in the JDK18 CI:

java/nio/channels/Channels/TransferTo.java

Here's a snippet from the log file:

#section:testng
----------messages:(6/206)----------
command: testng TransferTo
reason: User specified action: run testng/othervm TransferTo
Mode: othervm [/othervm specified]
Timeout information:
--- Timeout information end.
elapsed time (seconds): 501.775
----------configuration:(0/0)----------
----------System.out:(5/308)----------
Seed from RandomFactory = 7611183328771965387L
Timeout refired 480 times
test TransferTo.testMoreThanTwoGB(): success
test TransferTo.testNullPointerException(TransferTo$2@2e92724a, TransferTo$4@a6dd5b5): success
test TransferTo.testNullPointerException(TransferTo$3@fb1475a, TransferTo$1@6b95eb64): success
----------System.err:(0/0)----------
----------rerun:(35/7401)*----------

<snip>

result: Error. Program `/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-18+23-1484/macosx-aarch64.jdk/jdk-18.jdk/Contents/Home/bin/java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 501765ms).