The following test timed out in the JDK16 CI:

closed/java/awt/FileDialog/FileDialogBufferOverflowTest/FileDialogBufferOverflowTest.html

Here's a snippet from the log file:

elapsed time (seconds): 240.251
----------System.out:(1/26)----------
Timeout refired 240 times
----------System.err:(1/219)----------
2020-10-26 21:11:26.965 java[30073:14469439] +[NSXPCSharedListener endpointForReply:withListenerName:]: an error occurred while attempting to obtain endpoint for listener 'com.apple.view-bridge': Connection interrupted
----------rerun:(41/6125)*----------