OL9 IPv6 only configured system

----------messages:(7/383)----------
command: main SetLoopbackMode
reason: User specified action: run main/othervm SetLoopbackMode
started: Thu May 18 18:38:29 ICT 2023
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.base --add-exports java.base/java.net=ALL-UNNAMED --add-opens java.base/java.net=ALL-UNNAMED
finished: Thu May 18 18:38:31 ICT 2023
elapsed time (seconds): 2.306
----------configuration:(5/139)----------
Boot Layer
  add modules: java.base
  add exports: java.base/java.net ALL-UNNAMED
  add opens: java.base/java.net ALL-UNNAMED

----------System.out:(20/404)----------
IPv6 can be used
Default network interface: null

Test will use multicast group: /ff01:0:0:0:0:0:0:1
NetworkInterface.getByInetAddress(grp): null

******************

Loopback mode is disabled.
/[0:0:0:0:0:0:0:0]:49324
Packet not received - correct.

******************

Loopback mode is enabled.
/[0:0:0:0:0:0:0:0]:49324
Packet not received (packet excepted as loopback is enabled)

******************

----------System.err:(11/592)----------
java.lang.RuntimeException: Test failed
at SetLoopbackMode.main(SetLoopbackMode.java:146)
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$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1592)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Test failed
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test failed