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via JDK Bug System by J. Duke, 1 year ago
[Ljavax.management.openmbean.CompositeData; cannot be cast to java.util.List
java.lang.ClassCastException: [Ljavax.management.openmbean.CompositeData; cannot be cast to java.util.List	at undefined.$Proxy0.getDiagnosticOptions(Unknown Source)	at undefined.Dummy.main(Dummy.java:17)