Program: 102499
Project: 102499
Buggy source:
/** 
 * Records an activity based on space lifecyle event and the activity object.
 * @param event the space lifecyle event
 * @param activityMessage the message of activity object
 * @param titleId the title of activity (comment)
 * @param templateParams 
 */
private void recordActivity(SpaceLifeCycleEvent event,String activityMessage,String titleId,Map<String,String> templateParams){
  Space space=event.getSpace();
  Identity spaceIdentity=identityManager.getOrCreateIdentity(SpaceIdentityProvider.NAME,space.getPrettyName(),false);
  Identity identity=identityManager.getOrCreateIdentity(OrganizationIdentityProvider.NAME,event.getTarget(),false);
  String activityId=getStorage().getProfileActivityId(spaceIdentity.getProfile(),Profile.AttachedActivityType.SPACE);
  if (activityId != null) {
    try {
      if (!"String_Node_Str".equals(activityMessage)) {
        ExoSocialActivity comment=createComment(activityMessage,titleId,null,SPACE_APP_ID,identity,templateParams);
        ExoSocialActivity activity=(ExoSocialActivityImpl)activityManager.getActivity(activityId);
        activity.setTitle(space.getMembers().length + "String_Node_Str");
        activityManager.updateActivity(activity);
        activityManager.saveComment(activity,comment);
      }
    }
 catch (    Exception e) {
      LOG.debug("String_Node_Str");
      activityId=null;
    }
  }
  if (activityId == null) {
    ExoSocialActivity activity=new ExoSocialActivityImpl();
    activity.setType(SPACE_PROFILE_ACTIVITY);
    activity.setTitle("String_Node_Str");
    if (Space.HIDDEN.equals(space.getVisibility())) {
      activity.isHidden(true);
    }
    activityManager.saveActivityNoReturn(spaceIdentity,activity);
    getStorage().updateProfileActivityId(spaceIdentity,activity.getId(),Profile.AttachedActivityType.SPACE);
    if (SPACE_CREATED_TITLE_ID.equals(titleId))     titleId=USER_JOINED_TITLE_ID;
    ExoSocialActivity comment=createComment(activityMessage,titleId,null,SPACE_APP_ID,identity,templateParams);
    activityManager.saveComment(activity,comment);
  }
}

Fixed version (ground truth):
/** 
 * Records an activity based on space lifecyle event and the activity object.
 * @param event the space lifecyle event
 * @param activityMessage the message of activity object
 * @param titleId the title of activity (comment)
 * @param templateParams 
 */
private void recordActivity(SpaceLifeCycleEvent event,String activityMessage,String titleId,Map<String,String> templateParams){
  Space space=event.getSpace();
  Identity spaceIdentity=identityManager.getOrCreateIdentity(SpaceIdentityProvider.NAME,space.getPrettyName(),false);
  Identity identity=identityManager.getOrCreateIdentity(OrganizationIdentityProvider.NAME,event.getTarget(),false);
  String activityId=getStorage().getProfileActivityId(spaceIdentity.getProfile(),Profile.AttachedActivityType.SPACE);
  if (activityId != null) {
    try {
      if (!"String_Node_Str".equals(activityMessage)) {
        ExoSocialActivity comment=createComment(activityMessage,titleId,null,SPACE_APP_ID,identity,templateParams);
        ExoSocialActivity activity=(ExoSocialActivityImpl)activityManager.getActivity(activityId);
        activityManager.saveComment(activity,comment);
      }
    }
 catch (    Exception e) {
      LOG.debug("String_Node_Str");
      activityId=null;
    }
  }
  if (activityId == null) {
    ExoSocialActivity activity=new ExoSocialActivityImpl();
    activity.setType(SPACE_PROFILE_ACTIVITY);
    activity.setTitle("String_Node_Str");
    if (Space.HIDDEN.equals(space.getVisibility())) {
      activity.isHidden(true);
    }
    activityManager.saveActivityNoReturn(spaceIdentity,activity);
    getStorage().updateProfileActivityId(spaceIdentity,activity.getId(),Profile.AttachedActivityType.SPACE);
    if (SPACE_CREATED_TITLE_ID.equals(titleId))     titleId=USER_JOINED_TITLE_ID;
    ExoSocialActivity comment=createComment(activityMessage,titleId,null,SPACE_APP_ID,identity,templateParams);
    activityManager.saveComment(activity,comment);
  }
}