Program: 68198
Project: 68198
Buggy source:
public void launch(String filePath){
  init();
  Chart chart=null;
  Serializer serializer=null;
  final File chartFile=new File(filePath);
  InputStream is=null;
  try {
    serializer=SerializerImpl.instance();
    if (chartFile.exists()) {
      is=new FileInputStream(chartFile);
      chart=serializer.read(is);
    }
  }
 catch (  Exception e) {
    WizardBase.displayException(e);
  }
 finally {
    if (is != null) {
      try {
        is.close();
      }
 catch (      IOException e) {
      }
    }
  }
  final ChartWizard chartWizard=new ChartWizard();
  IDataServiceProvider dataProvider=new DefaultDataServiceProviderImpl();
  final ChartWizardContext context=new ChartWizardContext(chart,new SimpleUIServiceProviderImpl(),dataProvider,new SampleStandardDataSheet(dataProvider));
  context.setEnabled(SUBTASK_TITLE,false);
  context.setEnabled(SUBTASK_LEGEND + BUTTON_LAYOUT,false);
  context.setEnabled(SUBTASK_SERIES_Y + BUTTON_LABEL,false);
  context.setEnabled(SUBTASK_SERIES_Y + BUTTON_CURVE,false);
  context.addPredefinedQuery(QUERY_CATEGORY,new String[]{"String_Node_Str","String_Node_Str"});
  context.setRtL(ChartUtil.isRightToLeftLocale(ULocale.getDefault()));
  final Object[] applyData=new Object[1];
  chartWizard.addCustomButton(new ApplyButtonHandler(chartWizard){
    public void run(){
      super.run();
      applyData[0]=context.getModel().copyInstance();
    }
  }
);
  ChartWizardContext contextResult=(ChartWizardContext)chartWizard.open(context);
  OutputStream os=null;
  try {
    os=new FileOutputStream(chartFile);
    if (contextResult != null) {
      serializer.write(contextResult.getModel(),os);
    }
 else     if (applyData[0] != null) {
      serializer.write((Chart)applyData[0],os);
    }
  }
 catch (  Exception e) {
    WizardBase.displayException(e);
  }
 finally {
    if (os != null) {
      try {
        os.close();
      }
 catch (      IOException e) {
      }
    }
  }
}

Fixed version (ground truth):
public void launch(String filePath){
  init();
  Chart chart=null;
  Serializer serializer=null;
  final File chartFile=new File(filePath);
  InputStream is=null;
  try {
    serializer=SerializerImpl.instance();
    if (chartFile.exists()) {
      is=new FileInputStream(chartFile);
      chart=serializer.read(is);
    }
  }
 catch (  Exception e) {
  }
 finally {
    if (is != null) {
      try {
        is.close();
      }
 catch (      IOException e) {
      }
    }
  }
  final ChartWizard chartWizard=new ChartWizard();
  IDataServiceProvider dataProvider=new DefaultDataServiceProviderImpl();
  final ChartWizardContext context=new ChartWizardContext(chart,new SimpleUIServiceProviderImpl(),dataProvider,new SampleStandardDataSheet(dataProvider));
  context.setEnabled(SUBTASK_TITLE,false);
  context.setEnabled(SUBTASK_LEGEND + BUTTON_LAYOUT,false);
  context.setEnabled(SUBTASK_SERIES_Y + BUTTON_LABEL,false);
  context.setEnabled(SUBTASK_SERIES_Y + BUTTON_CURVE,false);
  context.addPredefinedQuery(QUERY_CATEGORY,new String[]{"String_Node_Str","String_Node_Str"});
  context.setRtL(ChartUtil.isRightToLeftLocale(ULocale.getDefault()));
  final Object[] applyData=new Object[1];
  chartWizard.addCustomButton(new ApplyButtonHandler(chartWizard){
    public void run(){
      super.run();
      applyData[0]=context.getModel().copyInstance();
    }
  }
);
  ChartLivePreviewThread livePreviewThread=new ChartLivePreviewThread(dataProvider);
  livePreviewThread.start();
  context.setLivePreviewThread(livePreviewThread);
  ChartWizardContext contextResult=(ChartWizardContext)chartWizard.open(context);
  OutputStream os=null;
  try {
    os=new FileOutputStream(chartFile);
    if (contextResult != null) {
      serializer.write(contextResult.getModel(),os);
    }
 else     if (applyData[0] != null) {
      serializer.write((Chart)applyData[0],os);
    }
  }
 catch (  Exception e) {
    WizardBase.displayException(e);
  }
 finally {
    if (os != null) {
      try {
        os.close();
      }
 catch (      IOException e) {
      }
    }
  }
}