title: sendDataMessage always causes Null Pointer Exception
body: <p>hopefully I can get some help on an issue I have been having.  I am using the "android.telephony.SmsManager" class to send a Data text message through calling API function:
  "sendDataMessage(...)" and each time the function is called, I get a null pointer exception.  I have done my research, and found that this can be caused by trying to send too large of a data message (on the order of 133 bytes or more).  I am sending 5 bytes - so I know I am not above the limit.  I do not get the null pointer exception on the emulator (although I know there are other issues with the emulator not properly sending Data SMS messages, so perhaps I would get an error if the emulator worked).  My code is as follows:</p>
  
  <pre><code>SmsManager sm = SmsManager.getDefault();
  int SMS_PORT = 8091;
  sm.sendDataMessage("5555551212", null, (short)SMS_PORT, "hello".getBytes(), null, null);
  </code></pre>
  
  <p>Per the API documentation, the 3 arguments that I have as "null" above are allowed to be null.  I have also tried sending intents to the last 2 arguments, and a string in the 2nd argument, but still get the null pointer exception.</p>
  
  <p>Note that I am getting this exception when I run on my android phone.  I am running on gingerbread, and am using the correct API level for GB.  My android manafest file does have the proper permissions to send an SMS.</p>
  
  <p>A logcat of the null pointer exception is as follows:</p>
  
  <pre><code>E/AndroidRuntime( 1690): FATAL EXCEPTION: main
  E/AndroidRuntime( 1690): java.lang.IllegalStateException: Could not execute method of the activity
  E/AndroidRuntime( 1690):        at android.view.View$1.onClick(View.java:2144)
  E/AndroidRuntime( 1690):        at android.view.View.performClick(View.java:2485)
  E/AndroidRuntime( 1690):        at android.view.View$PerformClick.run(View.java:9081)
  E/AndroidRuntime( 1690):        at android.os.Handler.handleCallback(Handler.java:587)
  E/AndroidRuntime( 1690):        at android.os.Handler.dispatchMessage(Handler.java:92)
  E/AndroidRuntime( 1690):        at android.os.Looper.loop(Looper.java:130)
  E/AndroidRuntime( 1690):        at android.app.ActivityThread.main(ActivityThread.java:3686)
  E/AndroidRuntime( 1690):        at java.lang.reflect.Method.invokeNative(Native Method)
  E/AndroidRuntime( 1690):        at java.lang.reflect.Method.invoke(Method.java:507)
  E/AndroidRuntime( 1690):        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
  E/AndroidRuntime( 1690):        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
  E/AndroidRuntime( 1690):        at dalvik.system.NativeStart.main(Native Method)
  E/AndroidRuntime( 1690): Caused by: java.lang.reflect.InvocationTargetException
  E/AndroidRuntime( 1690):        at java.lang.reflect.Method.invokeNative(Native Method)
  E/AndroidRuntime( 1690):        at java.lang.reflect.Method.invoke(Method.java:507)
  E/AndroidRuntime( 1690):        at android.view.View$1.onClick(View.java:2139)
  E/AndroidRuntime( 1690):        ... 11 more
  E/AndroidRuntime( 1690): Caused by: java.lang.NullPointerException
  E/AndroidRuntime( 1690):        at android.os.Parcel.readException(Parcel.java:1328)
  E/AndroidRuntime( 1690):        at android.os.Parcel.readException(Parcel.java:1276)
  E/AndroidRuntime( 1690):        at com.android.internal.telephony.ISms$Stub$Proxy.sendData(ISms.java:359)
  E/AndroidRuntime( 1690):        at android.telephony.SmsManager.sendDataMessage(SmsManager.java:212)
  E/AndroidRuntime( 1690):        at com.test.datasmstest.DataSMSTestActivity.DoClick(DataSMSTestActivity.java:55)
  E/AndroidRuntime( 1690):        ... 14 more
  </code></pre>
  
  <p>Any ideas - would any more information be useful to help solve this problem?</p>
  
  <p>Thanks!</p>