Issue 4260 - Replace Apache Commons Lang classes

src/org/adblockplus/android/ProxyService.java

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package org.adblockplus.android;
 
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.ServerSocket;
 import java.net.UnknownHostException;
 import java.util.Properties;
 
 import org.adblockplus.android.configurators.ProxyConfigurator;
 import org.adblockplus.android.configurators.ProxyConfigurators;
 import org.adblockplus.android.configurators.ProxyRegistrationType;
-import org.apache.commons.lang.StringUtils;
+import org.adblockplus.android.StringUtils;
 
 import sunlabs.brazil.server.Server;
 import sunlabs.brazil.util.Base64;
 import android.annotation.SuppressLint;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ skipping 549 matching lines @@
     @Override
     public void log(final int level, final Object obj, final String message)
     {
       if (level <= logLevel)
       {
         Log.println(7 - level, obj != null ? obj.toString() : TAG, message);
       }
     }
   }
 }