java.lang.IllegalArgumentException: Mixer not supported: Loopback [plughw:0,1], version 5.13.0-1018-oracle
at java.desktop/javax.sound.sampled.AudioSystem.getMixer(AudioSystem.java:210)
at DefaultMixers.testMixers(DefaultMixers.java:89)
at DefaultMixers.main(DefaultMixers.java:72)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1570)

JavaTest Message: Test threw exception: java.lang.IllegalArgumentException: Mixer not supported: Loopback [plughw:0,1], version 5.13.0-1018-oracle
JavaTest Message: shutting down test