Program: 76008
Project: 76008
Buggy source:
/** 
 * The worker method. It will find the container, create the file if missing or just replace its contents, and open the editor on the newly created file.
 * @param cheatSheetId
 * @param locationPath
 * @param fileName
 * @param showCheatSheet
 * @param monitor
 */
private void doFinish(IPath locationPath,String fileName,String sourceFileName,final String cheatSheetId,final boolean showCheatSheet,IProgressMonitor monitor){
  monitor.beginTask(CREATING + fileName,2);
  final File file=new File(locationPath.toString(),fileName);
  try {
    File container=new File(locationPath.toString());
    if (!container.exists()) {
      container.mkdirs();
    }
    ReportDesignHandle handle=SessionHandleAdapter.getInstance().getSessionHandle().createDesignFromTemplate(sourceFileName);
    if (ReportPlugin.getDefault().getEnableCommentPreference()) {
      handle.setStringProperty(ModuleHandle.COMMENTS_PROP,ReportPlugin.getDefault().getCommentPreference());
    }
    if (isPredifinedTemplate(sourceFileName)) {
      String displayName=handle.getDisplayName();
      if (displayName != null && displayName.trim().length() > 0) {
        handle.setDisplayName(Messages.getString(displayName));
      }
      String description=handle.getDescription();
      if (description != null && description.trim().length() > 0) {
        handle.setDescription(Messages.getString(description));
      }
    }
    handle.saveAs(file.getAbsolutePath());
    handle.close();
  }
 catch (  Exception e) {
    ExceptionHandler.handle(e);
  }
  monitor.worked(1);
  monitor.setTaskName(OPENING_FILE_FOR_EDITING);
  getShell().getDisplay().asyncExec(new Runnable(){
    public void run(){
      IWorkbench workbench=PlatformUI.getWorkbench();
      IWorkbenchWindow window=workbench.getActiveWorkbenchWindow();
      IWorkbenchPage page=window.getActivePage();
      try {
        if (page == null) {
          throw new IllegalArgumentException();
        }
        page.openEditor(new ReportEditorInput(file),IReportEditorContants.DESIGN_EDITOR_ID,true);
        if (showCheatSheet && !cheatSheetId.equals("String_Node_Str")) {
          OpenCheatSheetAction action=new OpenCheatSheetAction(cheatSheetId);
          action.run();
        }
      }
 catch (      Exception e) {
        ExceptionHandler.handle(e);
      }
    }
  }
);
  monitor.worked(1);
}

Fixed version (ground truth):
/** 
 * The worker method. It will find the container, create the file if missing or just replace its contents, and open the editor on the newly created file.
 * @param cheatSheetId
 * @param locationPath
 * @param fileName
 * @param showCheatSheet
 * @param monitor
 */
private void doFinish(IPath locationPath,String fileName,String sourceFileName,final String cheatSheetId,final boolean showCheatSheet,IProgressMonitor monitor){
  monitor.beginTask(CREATING + fileName,2);
  final File file=new File(locationPath.toString(),fileName);
  try {
    File container=new File(locationPath.toString());
    if (!container.exists()) {
      container.mkdirs();
    }
    ReportDesignHandle handle=SessionHandleAdapter.getInstance().getSessionHandle().createDesignFromTemplate(sourceFileName);
    if (ReportPlugin.getDefault().getEnableCommentPreference()) {
      handle.setStringProperty(ModuleHandle.COMMENTS_PROP,ReportPlugin.getDefault().getCommentPreference());
    }
    if (isPredifinedTemplate(sourceFileName)) {
      String displayName=handle.getDisplayName();
      if (displayName != null && displayName.trim().length() > 0) {
        handle.setDisplayName(Messages.getString(displayName));
      }
      String description=handle.getDescription();
      if (description != null && description.trim().length() > 0) {
        handle.setDescription(Messages.getString(description));
      }
    }
    handle.saveAs(file.getAbsolutePath());
    handle.close();
  }
 catch (  Exception e) {
    ExceptionHandler.handle(e);
  }
  monitor.worked(1);
  monitor.setTaskName(OPENING_FILE_FOR_EDITING);
  getShell().getDisplay().asyncExec(new Runnable(){
    public void run(){
      IWorkbench workbench=PlatformUI.getWorkbench();
      IWorkbenchWindow window=workbench.getActiveWorkbenchWindow();
      IWorkbenchPage page=window.getActivePage();
      try {
        if (page == null) {
          throw new IllegalArgumentException();
        }
        page.openEditor(new ReportEditorInput(file),IReportEditorContants.DESIGN_EDITOR_ID,true);
        if (showCheatSheet && !cheatSheetId.equals("String_Node_Str")) {
          Display.getCurrent().getActiveShell().setData(page);
          new OpenCheatSheetAction(cheatSheetId).run();
        }
      }
 catch (      Exception e) {
        ExceptionHandler.handle(e);
      }
    }
  }
);
  monitor.worked(1);
}