Program: 66678
Project: 66678
Buggy source:
/** 
 * Clean up the execution context before finishing using it
 */
public void close(){
  if (extendedItemManager != null) {
    extendedItemManager.close();
    extendedItemManager=null;
  }
  if (engineExtensionManager != null) {
    engineExtensionManager.close();
    engineExtensionManager=null;
  }
  if (scriptContext != null) {
    scriptContext.close();
    scriptContext=null;
  }
  if (bookmarkManager != null) {
    bookmarkManager.close();
    bookmarkManager=null;
  }
  if (dataSource != null) {
    try {
      dataSource.close();
    }
 catch (    IOException e) {
      log.log(Level.SEVERE,"String_Node_Str",e);
    }
    dataSource=null;
  }
  if (dataEngine != null) {
    dataEngine.shutdown();
    dataEngine=null;
  }
  if (closeClassLoader && applicationClassLoader instanceof ApplicationClassLoader) {
    ((ApplicationClassLoader)applicationClassLoader).close();
  }
  IStatusHandler handler=task.getStatusHandler();
  if (handler != null) {
    handler.finish();
  }
  applicationClassLoader=null;
  engine=null;
  executor=null;
  tocBuilder=null;
  configs=null;
  params=null;
  persistentBeans=null;
  transientBeans=null;
  pageVariables=null;
  docWriter=null;
  reportIR=null;
  appContext=null;
  reportContext=null;
  renderOption=null;
  reportDoc=null;
  reportContent=null;
  design=null;
  content=null;
  rsets=null;
  reportHandles=null;
  errors.clear();
  stringFormatters=null;
  numberFormatters=null;
  dateFormatters=null;
  pageBreakListeners=null;
  eventHandlerManager=null;
  progressMonitor=null;
  element=null;
}

Fixed version (ground truth):
/** 
 * Clean up the execution context before finishing using it
 */
public void close(){
  if (extendedItemManager != null) {
    extendedItemManager.close();
    extendedItemManager=null;
  }
  if (engineExtensionManager != null) {
    engineExtensionManager.close();
    engineExtensionManager=null;
  }
  if (scriptContext != null) {
    unRegisterDataObject();
    scriptContext.close();
    scriptContext=null;
  }
  if (bookmarkManager != null) {
    bookmarkManager.close();
    bookmarkManager=null;
  }
  if (dataSource != null) {
    try {
      dataSource.close();
    }
 catch (    IOException e) {
      log.log(Level.SEVERE,"String_Node_Str",e);
    }
    dataSource=null;
  }
  if (dataEngine != null) {
    dataEngine.shutdown();
    dataEngine=null;
  }
  if (closeClassLoader && applicationClassLoader instanceof ApplicationClassLoader) {
    ((ApplicationClassLoader)applicationClassLoader).close();
  }
  IStatusHandler handler=task.getStatusHandler();
  if (handler != null) {
    handler.finish();
  }
  applicationClassLoader=null;
  engine=null;
  executor=null;
  tocBuilder=null;
  configs=null;
  params=null;
  persistentBeans=null;
  transientBeans=null;
  pageVariables=null;
  docWriter=null;
  reportIR=null;
  appContext=null;
  reportContext=null;
  renderOption=null;
  reportDoc=null;
  reportContent=null;
  design=null;
  content=null;
  rsets=null;
  reportHandles=null;
  errors.clear();
  stringFormatters=null;
  numberFormatters=null;
  dateFormatters=null;
  pageBreakListeners=null;
  eventHandlerManager=null;
  progressMonitor=null;
  element=null;
}