android utility functions

Util.java

package com.example.test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.json.JSONArray;

import android.util.Log;

public class Util {
  
  public static String readStream(InputStream in){
    Log.v("Util", "readStream");
    BufferedReader reader = null;
    String json = "";
    try {
      String line = "";
      reader = new BufferedReader(new InputStreamReader(in));
      while((line = reader.readLine()) != null){
        json += line; 
      }
    }catch(IOException e){
      e.printStackTrace();
    }finally{
      if(reader != null){
        try {
          reader.close();
        }catch(IOException e){
          e.printStackTrace();
        }
      }
    }
    return json;
  }

  public static JSONArray parseJson(String json){
    Log.v("Util", "parseJson");
    JSONArray data = null;

    try{
      data = new JSONArray(json);
    }catch(Exception e){
      e.printStackTrace();
    }

    if(null == data){
      try{
        data = new JSONArray("[]");
      }catch(Exception e){
        e.printStackTrace();
      }
    }

    return data;
  }
}