@Override
public void execute(AbstractInsnNode insn, Interpreter interpreter) throws AnalyzerException {

    boolean never = false;
    if (never) {
        super.execute(insn, interpreter);
        return;
    }

    int insnOpcode = insn.getOpcode();

    if (insnOpcode == Opcodes.MONITORENTER || insnOpcode == Opcodes.MONITOREXIT) {
        Value pop = pop();
        interpreter.unaryOperation(insn, pop);

        int local = -1;
        for (int i = 0; i < getLocals(); i++) {
            if (getLocal(i) == pop) local = i;
        }

        if (local > -1) {
            if (insnOpcode == Opcodes.MONITORENTER) {
                monitorEnter(local);
            } else {
                monitorExit(local);
            }
        }

    } else {
        super.execute(insn, interpreter);
    }
}
 

@Override
public void execute(AbstractInsnNode insn, Interpreter interpreter) throws AnalyzerException {

    boolean never = false;
    if (never) {
        super.execute(insn, interpreter);
        return;
    }

    int insnOpcode = insn.getOpcode();

    if (insnOpcode == Opcodes.MONITORENTER || insnOpcode == Opcodes.MONITOREXIT) {
        Value pop = pop();
        interpreter.unaryOperation(insn, pop);

        int local = -1;
        for (int i = 0; i < getLocals(); i++) {
            if (getLocal(i) == pop) local = i;
        }

        if (local > -1) {
            if (insnOpcode == Opcodes.MONITORENTER) {
                monitorEnter(local);
            } else {
                monitorExit(local);
            }
        }

    } else {
        super.execute(insn, interpreter);
    }
}
 

@Override
public void execute(AbstractInsnNode insn, Interpreter interpreter) throws AnalyzerException {

    boolean never = false;
    if (never) {
        super.execute(insn, interpreter);
        return;
    }

    int insnOpcode = insn.getOpcode();

    if (insnOpcode == Opcodes.MONITORENTER || insnOpcode == Opcodes.MONITOREXIT) {
        Value pop = pop();
        interpreter.unaryOperation(insn, pop);

        int local = -1;
        for (int i = 0; i < getLocals(); i++) {
            if (getLocal(i) == pop) local = i;
        }

        if (local > -1) {
            if (insnOpcode == Opcodes.MONITORENTER) {
                monitorEnter(local);
            } else {
                monitorExit(local);
            }
        }

    } else {
        super.execute(insn, interpreter);
    }
}
 

public MethodAnalyzer(Interpreter<V> interpreter) {
  super(interpreter);
}
 

@Override
public void execute(AbstractInsnNode insn, Interpreter<BasicValue> interpreter) throws AnalyzerException {
    this.current = insn;
    super.execute(insn, interpreter);
}