public void visitLookupSwitchInsn(final Label dflt, final int[] keys,
			final Label[] labels) {
		if (mv != null) {
			mv.visitLookupSwitchInsn(dflt, keys, labels);
		}
		execute(Opcodes.LOOKUPSWITCH, 0, null);
		this.locals = null;
		this.stack = null;
	}