public MethodCall(String method_name, Object[] args, String[] signature) { this.method_name=method_name; this.args=args; this.signature=signature; this.mode=SIGNATURE;
public MethodCall() {
    public MethodCall(String method_name, Object[] args, String[] signature) {        this.method_name=method_name;        this.args=args;        this.signature=signature;        this.mode=SIGNATURE;    }