while (!vstack.isEmpty()) { Item v = vstack.pop(); if (v.isStack()) {  if (VirtualStack.checkOperandStack) { vstack.operandStack.pop(v); } } v.release(eContext); }
	public final void visit_return() { 		if(countBytecode) { counters.getCounter("return").inc(); }				stackFrame.emitReturn();		assertCondition(vstack.isEmpty(), "vstack should be empty; it is ",				vstack);	}