The following one liner crashes with the stack trace below:

var MyClass = Java.extend(java.lang.Object);

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:603)
at java.util.ArrayList.get(ArrayList.java:381)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory.getGeneratedClassName(JavaAdapterFactory.java:290)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory.<init>(JavaAdapterFactory.java:263)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory.<init>(JavaAdapterFactory.java:139)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory$5.run(JavaAdapterFactory.java:1128)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory$5.run(JavaAdapterFactory.java:1124)
at java.security.AccessController.doPrivileged(Native Method)
at jdk.nashorn.internal.runtime.linker.JavaAdapterFactory.createAdapterInfo(JavaAdapterFactory.java:1124)
[.. more frames removed ..]