NB 5.0beta2, JDK 6.0 build 62
I use asm library (http://asm.objectweb.org/doc/tutorial-asm-2.0.html)

type
class Foo implements org.objectweb.asm.MethodVisitor
{
}
and ask NB to implement all abstract methods
you will get two problematic methods:

    public void visitTableSwitchInsn(int min, int max, Label dflt, Label[]
labels[]) {
    }

    public void visitLookupSwitchInsn(Label dflt, int[] keys[], Label[] labels[]) {
    }

but labels and keys params should be one-dimension arrays, such as

    public void visitTableSwitchInsn(int min, int max, Label dflt, Label[] labels) {
    }

    public void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels) {
    }

Unfortunatelly, I was unable to reproduce this problem with simplier test :(