Program: 108210
Project: 108210
Buggy source:
/** 
 * Evaluates the page This checks whether the current settings on the page make any sense. If everything is fine, the settings are being put into the appropriate data container   {@link ImportWizardModel} and the  current page is marked ascomplete by invoking  {@link #setPageComplete(boolean)}. Otherwise an error message is set, which will make sure the user is informed about the reason for the error.
 */
private void evaluatePage(){
  setPageComplete(false);
  setErrorMessage(null);
  tablePreview.setVisible(false);
  if (comboLocation.getText().equals("String_Node_Str")) {
    return;
  }
  try {
    detectLinebreak();
    comboLinebreak.select(selectedLinebreak);
    if (!customSeparator) {
      detectSeparator();
      comboSeparator.select(selectedSeparator);
    }
    readPreview();
  }
 catch (  IOException|IllegalArgumentException e) {
    setErrorMessage(e.getMessage());
    return;
  }
catch (  RuntimeException e) {
    if (e.getCause() != null) {
      setErrorMessage(e.getCause().getMessage());
    }
 else {
      setErrorMessage(e.getMessage());
    }
    return;
  }
  ImportWizardModel data=wizardImport.getData();
  data.setWizardColumns(wizardColumns);
  data.setPreviewData(previewData);
  data.setFirstRowContainsHeader(btnContainsHeader.getSelection());
  data.setFileLocation(comboLocation.getText());
  data.setCsvSeparator(separators[selectedSeparator]);
  data.setCsvDelimiter(delimiters[selectedDelimiter]);
  data.setCsvEscape(escapes[selectedEscape]);
  data.setCsvLinebreak(linebreaks[selectedLinebreak]);
  setPageComplete(true);
}

Fixed version (ground truth):
/** 
 * Evaluates the page This checks whether the current settings on the page make any sense. If everything is fine, the settings are being put into the appropriate data container   {@link ImportWizardModel} and the  current page is marked ascomplete by invoking  {@link #setPageComplete(boolean)}. Otherwise an error message is set, which will make sure the user is informed about the reason for the error.
 */
private void evaluatePage(){
  setPageComplete(false);
  setErrorMessage(null);
  tablePreview.setVisible(false);
  if (comboLocation.getText().equals("String_Node_Str")) {
    return;
  }
  try {
    if (!customLinebreak) {
      detectLinebreak();
      comboLinebreak.select(selectedLinebreak);
    }
    if (!customSeparator) {
      detectSeparator();
      comboSeparator.select(selectedSeparator);
    }
    readPreview();
  }
 catch (  IOException|IllegalArgumentException e) {
    setErrorMessage(e.getMessage());
    return;
  }
catch (  RuntimeException e) {
    if (e.getCause() != null) {
      setErrorMessage(e.getCause().getMessage());
    }
 else {
      setErrorMessage(e.getMessage());
    }
    return;
  }
  ImportWizardModel data=wizardImport.getData();
  data.setWizardColumns(wizardColumns);
  data.setPreviewData(previewData);
  data.setFirstRowContainsHeader(btnContainsHeader.getSelection());
  data.setFileLocation(comboLocation.getText());
  data.setCsvSeparator(separators[selectedSeparator]);
  data.setCsvDelimiter(delimiters[selectedDelimiter]);
  data.setCsvEscape(escapes[selectedEscape]);
  data.setCsvLinebreak(linebreaks[selectedLinebreak]);
  setPageComplete(true);
}