The following test failed in the JDK21 CI:

com/sun/jdi/RedefineIntConstantToLong.java

Here's a snippet from the log file:

> cont
[debuggee] **** public long m2(long j) with value: 2000
[jdb] >
[jdb] Breakpoint hit: "thread=main", RedefineIntConstantToLongTarg.doit(), line=66 bci=20
[jdb] 66 if (r1 != r2) { // @1 breakpoint
[jdb]
[jdb] main[1]
> where
[jdb] [1] RedefineIntConstantToLongTarg.doit (RedefineIntConstantToLong.java:66)
[jdb] [2] RedefineIntConstantToLongTarg.main (RedefineIntConstantToLong.java:74)
[jdb] main[1]
> cont
[debuggee] SUCCESS: Expected value: 2000 Actual value: 2000
[jdb] >
=======================================
Exception thrown during test execution: waitForPrompt timed out after 240 seconds, looking for '<?[a-zA-Z0-9_-]*>?\\[[1-9][0-9]*\\] [ >]*$', in 1 lines
=======================================
> quit
Timeout refired 480 times
[jdb] >
----------System.err:(17/1158)*----------
java.lang.RuntimeException: waitForPrompt timed out after 240 seconds, looking for '<?[a-zA-Z0-9_-]*>?\\[[1-9][0-9]*\\] [ >]*$', in 1 lines
at lib.jdb.Jdb.waitForPrompt(Jdb.java:220)
at lib.jdb.Jdb.command(Jdb.java:240)
at lib.jdb.Jdb.quit(Jdb.java:265)
at lib.jdb.Jdb.shutdown(Jdb.java:108)
at lib.jdb.JdbTest.shutdown(JdbTest.java:136)
at lib.jdb.JdbTest.run(JdbTest.java:103)
at RedefineIntConstantToLong.main(RedefineIntConstantToLong.java:81)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)

JavaTest Message: Test threw exception: java.lang.RuntimeException: waitForPrompt timed out after 240 seconds, looking for '<?[a-zA-Z0-9_-]*>?\\[[1-9][0-9]*\\] [ >]*$', in 1 lines
JavaTest Message: shutting down test


Please note that this sighting does not mention
"SocketException: Connection reset" so I think this is
a different failure than this one:

JDK-8282356 2 com/sun/jdi failed due to "SocketException: Connection reset"

which also has a com/sun/jdi/RedefineIntConstantToLong.java sighting.