1 /*
   2  * Copyright (c) 2011, 2013, 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 #ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
  26 #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
  27 
  28 #include "memory/specialized_oop_closures.hpp"
  29 #include "oops/instanceKlass.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
  33 // not add any field.  It is added to walk the dependencies for the class loader
  34 // key that this class loader points to.  This is how the loader_data graph is
  35 // walked and dependant class loaders are kept alive.  I thought we walked
  36 // the list later?
  37 
  38 class InstanceClassLoaderKlass: public InstanceKlass {
  39   friend class VMStructs;
  40   friend class InstanceKlass;
  41 
  42   // Constructor
  43   InstanceClassLoaderKlass(int vtable_len, int itable_len, int static_field_size, int nonstatic_oop_map_size, ReferenceType rt, AccessFlags access_flags, bool is_anonymous)
  44     : InstanceKlass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt, access_flags, is_anonymous) {}
  45 
  46 public:
  47   virtual bool oop_is_instanceClassLoader() const { return true; }
  48 

   1 /*
   2  * Copyright (c) 2011, 2015, 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 #ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
  26 #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
  27 
  28 #include "gc/shared/specialized_oop_closures.hpp"
  29 #include "oops/instanceKlass.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
  33 // not add any field.  It is added to walk the dependencies for the class loader
  34 // key that this class loader points to.  This is how the loader_data graph is
  35 // walked and dependant class loaders are kept alive.  I thought we walked
  36 // the list later?
  37 
  38 class InstanceClassLoaderKlass: public InstanceKlass {
  39   friend class VMStructs;
  40   friend class InstanceKlass;
  41 
  42   // Constructor
  43   InstanceClassLoaderKlass(int vtable_len, int itable_len, int static_field_size, int nonstatic_oop_map_size, ReferenceType rt, AccessFlags access_flags, bool is_anonymous)
  44     : InstanceKlass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt, access_flags, is_anonymous) {}
  45 
  46 public:
  47   virtual bool oop_is_instanceClassLoader() const { return true; }
  48