1 /*
   2  * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "classfile/classLoaderData.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "oops/oop.inline.hpp"
  28 
  29 inline ClassLoaderData* ClassLoaderData::class_loader_data_or_null(oop loader) {
  30   if (loader == NULL) {
  31     return ClassLoaderData::the_null_class_loader_data();
  32   }
  33   return java_lang_ClassLoader::loader_data(loader);
  34 }
  35 
  36 inline ClassLoaderData* ClassLoaderData::class_loader_data(oop loader) {
  37   ClassLoaderData* loader_data = class_loader_data_or_null(loader);
  38   assert(loader_data != NULL, "Must be");
  39   return loader_data;
  40 }
  41 
  42 
  43 inline ClassLoaderData *ClassLoaderDataGraph::find_or_create(Handle loader, TRAPS) {
  44   guarantee(loader() != NULL && loader()->is_oop(), "Loader must be oop");
  45   // Gets the class loader data out of the java/lang/ClassLoader object, if non-null
  46   // it's already in the loader_data, so no need to add
  47   ClassLoaderData* loader_data= java_lang_ClassLoader::loader_data(loader());
  48   if (loader_data) {
  49      return loader_data;
  50   }
  51   return ClassLoaderDataGraph::add(loader, false, THREAD);
  52 }
--- EOF ---