SA-JDI reported the following exception when calling StackFrame.thisObject():

# ERROR: sun.jvm.hotspot.utilities.AssertionFailure: type check
# ERROR: at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32)
# ERROR: at sun.jvm.hotspot.runtime.StackValue.getObject(StackValue.java:59)
# ERROR: at sun.jvm.hotspot.runtime.StackValueCollection.oopHandleAt(StackValueCollection.java:51)
# ERROR: at sun.jvm.hotspot.jdi.StackFrameImpl.thisObject(StackFrameImpl.java:126)

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