DelegatingInvoker fails calling Object.finalize

Just got the following stack trace:

com.thoughtworks.proxy.toys.delegate.DelegationException: Problem invoking protected void java.lang.Object.finalize() throws java.lang.Throwable
at com.thoughtworks.proxy.toys.delegate.DelegatingInvoker.invokeOnDelegate(DelegatingInvoker.java:113)
at com.thoughtworks.proxy.toys.delegate.DelegatingInvoker.invoke(DelegatingInvoker.java:84)
at de.fnogol.swingtools.table.RoutingInvoker.invoke(RoutingInvoker.java:57)
at de.fnogol.swingtools.table.ExceptionSafeInvoker.invoke(ExceptionSafeInvoker.java:45)
at com.thoughtworks.proxy.factory.AbstractProxyFactory$CoincidentalInvocationHandlerAdapter.invoke(AbstractProxyFactory.java:47)
at javax.swing.table.AbstractTableModel$$EnhancerByCGLIB$$e5a4c510.finalize(<generated>)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
at java.lang.ref.Finalizer$3.run(Finalizer.java:148)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.IllegalAccessException: Class com.thoughtworks.proxy.toys.delegate.DelegatingInvoker can not access a member of class java.lang.Object with modifiers "protected"
at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:57)
at java.lang.reflect.Method.invoke(Method.java:317)
at com.thoughtworks.proxy.toys.delegate.DelegatingInvoker.invokeOnDelegate(DelegatingInvoker.java:109)
... 10 more

I'm not sure what the correct fix was – IMHO DelegatingInvoker shoild simply skip calling finalize on the delegate.