Merge "Need to check empty not null for String"

import android.os.Parcel;

import android.os.Parcelable;

import android.telephony.CarrierConfigManager;

import android.text.TextUtils;

import android.util.Log;

import android.content.res.Resources;

import java.util.ArrayList;

import java.util.Arrays;

    public int getWcdmaLevel() {

        int level = SIGNAL_STRENGTH_NONE_OR_UNKNOWN;

        if (mWcdmaDefaultSignalMeasurement == null) {

        if (TextUtils.isEmpty(mWcdmaDefaultSignalMeasurement)) {

            Log.wtf(LOG_TAG, "getWcdmaLevel - WCDMA default signal measurement is invalid.");

            return level;

        }