Program: 63958
Project: 63958
Buggy source:
@Override public boolean isRequestValid(UriInfo uri,Map<String,Object> additionalParams){
  Object query=null;
  Object dbQuery=null;
  if ((additionalParams != null) && (!additionalParams.isEmpty())) {
    dbQuery=additionalParams.get(DB_QUERY);
    query=additionalParams.get(QUERY);
    if ((dbQuery != null) && ((dbQuery instanceof ObjectLevelReadQuery) || (dbQuery instanceof ReadAllQuery))) {
      List<Expression> orderBy=null;
      if (dbQuery instanceof ReadAllQuery) {
        orderBy=((ReadAllQuery)dbQuery).getOrderByExpressions();
      }
 else       if (dbQuery instanceof ObjectLevelReadQuery) {
        orderBy=((ObjectLevelReadQuery)dbQuery).getOrderByExpressions();
      }
      if ((orderBy != null) && (!orderBy.isEmpty())) {
        return false;
      }
    }
  }
  Map<String,Object> queryParameters=getQueryParameters(uri);
  String paramLimit=(String)queryParameters.get(QueryParameters.JPARS_PAGING_LIMIT);
  String paramOffset=(String)queryParameters.get(QueryParameters.JPARS_PAGING_OFFSET);
  if ((paramLimit == null) && (paramOffset == null)) {
    return false;
  }
  if (paramOffset != null) {
    offset=paramOffset;
  }
 else {
    offset=Integer.toString(SystemDefaults.JPARS_DEFAULT_PAGE_OFFSET);
  }
  if (paramLimit != null) {
    limit=paramLimit;
  }
 else {
    limit=Integer.toString(SystemDefaults.JPARS_DEFAULT_PAGE_LIMIT);
  }
  try {
    if ((offset != null) && (limit != null)) {
      if ((Integer.parseInt(offset) >= 0) && (Integer.parseInt(limit) > 0)) {
        if (query != null) {
          ((Query)query).setFirstResult((Integer.parseInt(offset)));
          ((Query)query).setMaxResults((Integer.parseInt(limit)));
        }
 else         if ((dbQuery != null) && (dbQuery instanceof ReadAllQuery)) {
          ((ReadAllQuery)dbQuery).setFirstResult((Integer.parseInt(offset)));
          ((ReadAllQuery)dbQuery).setMaxRows((Integer.parseInt(limit)));
        }
 else         if ((dbQuery != null) && (dbQuery instanceof DirectReadQuery)) {
          ((DirectReadQuery)dbQuery).setFirstResult((Integer.parseInt(offset)));
          ((DirectReadQuery)dbQuery).setMaxRows((Integer.parseInt(limit)));
        }
        return true;
      }
    }
  }
 catch (  NumberFormatException ex) {
  }
  return false;
}

Fixed version (ground truth):
@Override public boolean isRequestValid(UriInfo uri,Map<String,Object> additionalParams){
  Object query=null;
  Object dbQuery=null;
  if ((additionalParams != null) && (!additionalParams.isEmpty())) {
    dbQuery=additionalParams.get(DB_QUERY);
    query=additionalParams.get(QUERY);
    if ((dbQuery != null) && ((dbQuery instanceof ObjectLevelReadQuery) || (dbQuery instanceof ReadAllQuery))) {
      List<Expression> orderBy=null;
      if (dbQuery instanceof ReadAllQuery) {
        orderBy=((ReadAllQuery)dbQuery).getOrderByExpressions();
      }
 else       if (dbQuery instanceof ObjectLevelReadQuery) {
        orderBy=((ObjectLevelReadQuery)dbQuery).getOrderByExpressions();
      }
      if ((orderBy == null) || (orderBy.isEmpty())) {
        return false;
      }
    }
  }
  Map<String,Object> queryParameters=getQueryParameters(uri);
  String paramLimit=(String)queryParameters.get(QueryParameters.JPARS_PAGING_LIMIT);
  String paramOffset=(String)queryParameters.get(QueryParameters.JPARS_PAGING_OFFSET);
  if ((paramLimit == null) && (paramOffset == null)) {
    return false;
  }
  if (paramOffset != null) {
    offset=paramOffset;
  }
 else {
    offset=Integer.toString(SystemDefaults.JPARS_DEFAULT_PAGE_OFFSET);
  }
  if (paramLimit != null) {
    limit=paramLimit;
  }
 else {
    limit=Integer.toString(SystemDefaults.JPARS_DEFAULT_PAGE_LIMIT);
  }
  try {
    if ((offset != null) && (limit != null)) {
      if ((Integer.parseInt(offset) >= 0) && (Integer.parseInt(limit) > 0)) {
        if (query != null) {
          ((Query)query).setFirstResult((Integer.parseInt(offset)));
          ((Query)query).setMaxResults((Integer.parseInt(limit)));
        }
 else         if ((dbQuery != null) && (dbQuery instanceof ReadAllQuery)) {
          ((ReadAllQuery)dbQuery).setFirstResult((Integer.parseInt(offset)));
          ((ReadAllQuery)dbQuery).setMaxRows((Integer.parseInt(limit)));
        }
 else         if ((dbQuery != null) && (dbQuery instanceof DirectReadQuery)) {
          ((DirectReadQuery)dbQuery).setFirstResult((Integer.parseInt(offset)));
          ((DirectReadQuery)dbQuery).setMaxRows((Integer.parseInt(limit)));
        }
        return true;
      }
    }
  }
 catch (  NumberFormatException ex) {
  }
  return false;
}