1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2018 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef HOTSPOT_SHARE_CLASSFILE_CLASSLOADERHIERARCHYDCMD_HPP_
  27 #define HOTSPOT_SHARE_CLASSFILE_CLASSLOADERHIERARCHYDCMD_HPP_
  28 
  29 #include "services/diagnosticCommand.hpp"
  30 
  31 class ClassLoaderHierarchyDCmd: public DCmdWithParser {
  32   DCmdArgument<bool> _show_classes;
  33   DCmdArgument<bool> _verbose;
  34   DCmdArgument<bool> _fold;
  35 public:
  36 
  37   ClassLoaderHierarchyDCmd(outputStream* output, bool heap);
  38 
  39   static const char* name() {
  40     return "VM.classloaders";
  41   }
  42 
  43   static const char* description() {
  44     return "Prints classloader hierarchy.";
  45   }
  46   static const char* impact() {
  47       return "Medium: Depends on number of class loaders and classes loaded.";
  48   }
  49   static const JavaPermission permission() {
  50     JavaPermission p = {"java.lang.management.ManagementPermission",
  51                         "monitor", NULL};
  52     return p;
  53   }
  54   static int num_arguments();
  55   virtual void execute(DCmdSource source, TRAPS);
  56 
  57 };
  58 
  59 #endif /* HOTSPOT_SHARE_CLASSFILE_CLASSLOADERHIERARCHYDCMD_HPP_ */