Program: 142246
Project: 142246
Buggy source:
@Override protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  btnRunTest.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      ConnectionDiagnosticTask<ConnectionDiagnosticActivity> mConnectionDiagnosticTask=new ConnectionDiagnosticTask<ConnectionDiagnosticActivity>(getApplicationContext(),CommCareApplication._().getCurrentApp().getCommCarePlatform()){
        @Override protected void deliverResult(        ConnectionDiagnosticActivity receiver,        ConnectionDiagnosticTask.Test failedTest){
          if (failedTest == ConnectionDiagnosticTask.Test.isOnline || failedTest == ConnectionDiagnosticTask.Test.googlePing) {
            String displayMessage=failedTest == ConnectionDiagnosticTask.Test.isOnline ? Localization.get("String_Node_Str") : Localization.get("String_Node_Str");
            receiver.txtInteractiveMessages.setText(localize(displayMessage));
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.settingsButton.setVisibility(View.VISIBLE);
          }
 else           if (failedTest == ConnectionDiagnosticTask.Test.commCarePing) {
            receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.reportButton.setVisibility(View.VISIBLE);
          }
 else           if (failedTest == null) {
            receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.settingsButton.setVisibility(View.INVISIBLE);
            receiver.reportButton.setVisibility(View.INVISIBLE);
          }
          return;
        }
        @Override protected void deliverUpdate(        ConnectionDiagnosticActivity receiver,        String... update){
          receiver.txtInteractiveMessages.setText((Localization.get("String_Node_Str")));
        }
        @Override protected void deliverError(        ConnectionDiagnosticActivity receiver,        Exception e){
          receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
          receiver.TransplantStyle(txtInteractiveMessages,R.layout.template_text_notification_problem);
        }
      }
;
      mConnectionDiagnosticTask.connect(ConnectionDiagnosticActivity.this);
      mConnectionDiagnosticTask.execute();
    }
  }
);
  this.settingsButton.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
    }
  }
);
  this.reportButton.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      SharedPreferences settings=CommCareApplication._().getCurrentApp().getAppPreferences();
      String url=settings.getString("String_Node_Str",null);
      if (url != null) {
        LogSubmissionTask reportSubmitter=new LogSubmissionTask(CommCareApplication._(),true,CommCareApplication._().getSession().startDataSubmissionListener(R.string.submission_logs_title),url);
        reportSubmitter.execute();
        ConnectionDiagnosticActivity.this.finish();
        Toast.makeText(CommCareApplication._(),Localization.get("String_Node_Str"),Toast.LENGTH_LONG).show();
      }
 else {
        Logger.log(ConnectionDiagnosticTask.CONNECTION_DIAGNOSTIC_REPORT,logUnsetPostURLMessage);
        ConnectionDiagnosticActivity.this.txtInteractiveMessages.setText(MarkupUtil.localizeStyleSpannable(ConnectionDiagnosticActivity.this,"String_Node_Str"));
        ConnectionDiagnosticActivity.this.txtInteractiveMessages.setVisibility(View.VISIBLE);
      }
    }
  }
);
}

Fixed version (ground truth):
@Override protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  btnRunTest.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      ConnectionDiagnosticTask<ConnectionDiagnosticActivity> mConnectionDiagnosticTask=new ConnectionDiagnosticTask<ConnectionDiagnosticActivity>(getApplicationContext(),CommCareApplication._().getCurrentApp().getCommCarePlatform()){
        @Override protected void deliverResult(        ConnectionDiagnosticActivity receiver,        ConnectionDiagnosticTask.Test failedTest){
          if (failedTest == ConnectionDiagnosticTask.Test.isOnline || failedTest == ConnectionDiagnosticTask.Test.googlePing) {
            String displayMessage=failedTest == ConnectionDiagnosticTask.Test.isOnline ? Localization.get("String_Node_Str") : Localization.get("String_Node_Str");
            receiver.txtInteractiveMessages.setText(displayMessage);
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.settingsButton.setVisibility(View.VISIBLE);
          }
 else           if (failedTest == ConnectionDiagnosticTask.Test.commCarePing) {
            receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.reportButton.setVisibility(View.VISIBLE);
          }
 else           if (failedTest == null) {
            receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
            receiver.txtInteractiveMessages.setVisibility(View.VISIBLE);
            receiver.settingsButton.setVisibility(View.INVISIBLE);
            receiver.reportButton.setVisibility(View.INVISIBLE);
          }
          return;
        }
        @Override protected void deliverUpdate(        ConnectionDiagnosticActivity receiver,        String... update){
          receiver.txtInteractiveMessages.setText((Localization.get("String_Node_Str")));
        }
        @Override protected void deliverError(        ConnectionDiagnosticActivity receiver,        Exception e){
          receiver.txtInteractiveMessages.setText(Localization.get("String_Node_Str"));
          receiver.TransplantStyle(txtInteractiveMessages,R.layout.template_text_notification_problem);
        }
      }
;
      mConnectionDiagnosticTask.connect(ConnectionDiagnosticActivity.this);
      mConnectionDiagnosticTask.execute();
    }
  }
);
  this.settingsButton.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
    }
  }
);
  this.reportButton.setOnClickListener(new OnClickListener(){
    @Override public void onClick(    View v){
      SharedPreferences settings=CommCareApplication._().getCurrentApp().getAppPreferences();
      String url=settings.getString("String_Node_Str",null);
      if (url != null) {
        LogSubmissionTask reportSubmitter=new LogSubmissionTask(CommCareApplication._(),true,CommCareApplication._().getSession().startDataSubmissionListener(R.string.submission_logs_title),url);
        reportSubmitter.execute();
        ConnectionDiagnosticActivity.this.finish();
        Toast.makeText(CommCareApplication._(),Localization.get("String_Node_Str"),Toast.LENGTH_LONG).show();
      }
 else {
        Logger.log(ConnectionDiagnosticTask.CONNECTION_DIAGNOSTIC_REPORT,logUnsetPostURLMessage);
        ConnectionDiagnosticActivity.this.txtInteractiveMessages.setText(MarkupUtil.localizeStyleSpannable(ConnectionDiagnosticActivity.this,"String_Node_Str"));
        ConnectionDiagnosticActivity.this.txtInteractiveMessages.setVisibility(View.VISIBLE);
      }
    }
  }
);
}