Program: 39932
Project: 39932
Buggy source:
@Override public PmphGroup addEditorSelcetionGroup(String sessionId,List<PmphGroupMember> list,Long textbookId) throws CheckedServiceException {
  PmphUser pmphUser=SessionUtil.getPmphUserBySessionId(sessionId);
  if (null == pmphUser || null == pmphUser.getId()) {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.NULL_PARAM,"String_Node_Str");
  }
  if (list.size() > 0) {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.NULL_PARAM,"String_Node_Str");
  }
  Textbook textbook=textbookService.getTextbookById(textbookId);
  list.get(0).setTextbookId(textbookId);
  list.get(0).setMaterialId(textbook.getMaterialId());
  String groupImage=RouteUtil.DEFAULT_GROUP_IMAGE;
  PmphGroup pmphGroup=new PmphGroup();
  if (ObjectUtil.isNull(pmphGroupDao.getPmphGroupByGroupName(textbook.getTextbookName()))) {
    pmphGroup.setGroupName(textbook.getTextbookName());
  }
 else {
    Long count=pmphGroupDao.getPmphGroupCount();
    pmphGroup.setGroupName(textbook.getTextbookName() + count);
  }
  pmphGroup.setGroupImage(groupImage);
  pmphGroup.setBookId(textbookId);
  pmphGroup.setFounderId(pmphUser.getId());
  pmphGroupDao.addPmphGroup(pmphGroup);
  if (null != pmphGroup.getId()) {
    PmphGroupMember pmphGroupMember=new PmphGroupMember();
    pmphGroupMember.setGroupId(pmphGroup.getId());
    pmphGroupMember.setIsFounder(true);
    pmphGroupMember.setUserId(pmphUser.getId());
    pmphGroupMember.setDisplayName(pmphUser.getRealname());
    pmphGroupMemberService.addPmphGroupMember(pmphGroupMember);
    pmphGroupMemberService.addPmphGroupMemberOnGroup(pmphGroup.getId(),list,sessionId);
  }
 else {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.OBJECT_NOT_FOUND,"String_Node_Str");
  }
  return pmphGroup;
}

Fixed version (ground truth):
@Override public PmphGroup addEditorSelcetionGroup(String sessionId,List<PmphGroupMember> list,Long textbookId) throws CheckedServiceException {
  PmphUser pmphUser=SessionUtil.getPmphUserBySessionId(sessionId);
  if (null == pmphUser || null == pmphUser.getId()) {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.NULL_PARAM,"String_Node_Str");
  }
  if (list.size() == 0) {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.NULL_PARAM,"String_Node_Str");
  }
  Textbook textbook=textbookService.getTextbookById(textbookId);
  list.get(0).setTextbookId(textbookId);
  list.get(0).setMaterialId(textbook.getMaterialId());
  String groupImage=RouteUtil.DEFAULT_GROUP_IMAGE;
  PmphGroup pmphGroup=new PmphGroup();
  if (ObjectUtil.isNull(pmphGroupDao.getPmphGroupByGroupName(textbook.getTextbookName()))) {
    pmphGroup.setGroupName(textbook.getTextbookName());
  }
 else {
    Long count=pmphGroupDao.getPmphGroupCount();
    pmphGroup.setGroupName(textbook.getTextbookName() + count);
  }
  pmphGroup.setGroupImage(groupImage);
  pmphGroup.setBookId(textbookId);
  pmphGroup.setFounderId(pmphUser.getId());
  pmphGroupDao.addPmphGroup(pmphGroup);
  if (null != pmphGroup.getId()) {
    PmphGroupMember pmphGroupMember=new PmphGroupMember();
    pmphGroupMember.setGroupId(pmphGroup.getId());
    pmphGroupMember.setIsFounder(true);
    pmphGroupMember.setUserId(pmphUser.getId());
    pmphGroupMember.setDisplayName(pmphUser.getRealname());
    pmphGroupMemberService.addPmphGroupMember(pmphGroupMember);
    pmphGroupMemberService.addPmphGroupMemberOnGroup(pmphGroup.getId(),list,sessionId);
  }
 else {
    throw new CheckedServiceException(CheckedExceptionBusiness.GROUP,CheckedExceptionResult.OBJECT_NOT_FOUND,"String_Node_Str");
  }
  return pmphGroup;
}