title: Creating connection with Android and Firebird JDBC
body: <p>I'm having a problem in create an android connection with Firebird database, the app is crashing whenever executes the line of connection.</p>
  
  <p>Code:</p>
  
  <pre><code>cod = ""+edit[0].getText();
  cod = String.format("%14s", cod).replace(' ', '0');
  String query = "SELECT DS_PRO FROM PROD WHERE CD_PRO = '"+cod+"'";
  try{
      Class.forName("org.firebirdsql.jdbc.FBDriver").newInstance();
      System.err.println("jdbc created");
  }catch(Exception e){
      System.err.println("Cannot create connection");
  }
  
  try{
      Properties props = new Properties();
      props.setProperty("user", "POINTER");
      props.setProperty("password", "pwdb");
      props.setProperty("encoding", "WIN1252");
      try{
          System.err.println("creating connection");
          java.sql.Connection connection = DriverManager.getConnection("jdbc:firebirdsql:192.168.0.196/3050:C:/Fenix/FENIX.FDB",props);
          System.err.println("created connection");
      }
      catch(Exception e){
          System.err.println("error in connection to server");
          System.err.println(e.getMessage());
      }
  }
  catch(Exception e){
      System.err.println("error in connection to server");
      System.err.println(e.getMessage());
  }
  </code></pre>
  
  <p>This is the message in logcat of eclipse:</p>
  
  <pre><code>01-29 09:22:44.774: W/System.err(28820): jdbc created
  01-29 09:22:44.774: W/System.err(28820): creating connection
  01-29 09:22:44.974: E/AndroidRuntime(28820): FATAL EXCEPTION: AsyncTask #3
  01-29 09:22:44.974: E/AndroidRuntime(28820): Process: com.example.testeconnection, PID: 28820
  01-29 09:22:44.974: E/AndroidRuntime(28820): java.lang.RuntimeException: An error occured while executing doInBackground()
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at android.os.AsyncTask$3.done(AsyncTask.java:300)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.FutureTask.run(FutureTask.java:242)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.lang.Thread.run(Thread.java:811)
  01-29 09:22:44.974: E/AndroidRuntime(28820): Caused by: java.lang.ExceptionInInitializerError
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at org.firebirdsql.jdbc.FBDriverPropertyManager.&lt;clinit&gt;(FBDriverPropertyManager.java:142)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at org.firebirdsql.jdbc.AbstractDriver.connect(AbstractDriver.java:103)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.sql.DriverManager.getConnection(DriverManager.java:179)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at com.example.testeconnection.BdConnect.doInBackground(BdConnect.java:55)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at com.example.testeconnection.BdConnect.doInBackground(BdConnect.java:1)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at android.os.AsyncTask$2.call(AsyncTask.java:288)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    ... 4 more
  01-29 09:22:44.974: E/AndroidRuntime(28820): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.Set java.util.Properties.entrySet()' on a null object reference
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at org.firebirdsql.jdbc.FBConnectionHelper.loadDpbParameterTypes(FBConnectionHelper.java:289)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    at org.firebirdsql.jdbc.FBConnectionHelper.&lt;clinit&gt;(FBConnectionHelper.java:106)
  01-29 09:22:44.974: E/AndroidRuntime(28820):    ... 11 more
  </code></pre>
  
  <p>somebody have any information of this error?</p>