----------System.out:(4/64)----------
Testing: Metal
Testing: Nimbus
Testing: CDE/Motif
Testing: GTK+
----------System.err:(11/642)----------
java.lang.RuntimeException: [GTK+ opaque=true]
at TestJTabbedPaneBackgroundColor.main(TestJTabbedPaneBackgroundColor.java:91)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1576)