4130 }

  4131 

  4132 // Caller needs ResourceMark.

  4133 const char* java_lang_ClassLoader::describe_external(const oop loader) {

  4134   ClassLoaderData *cld = ClassLoaderData::class_loader_data(loader);

  4135   const char* name = cld->loader_name_and_id();

  4136 

  4137   // bootstrap loader

  4138   if (loader == NULL) {

  4139     return name;

  4140   }

  4141 

  4142   bool well_known_loader = SystemDictionary::is_system_class_loader(loader) ||

  4143                            SystemDictionary::is_platform_class_loader(loader);

  4144 

  4145   stringStream ss;

  4146   ss.print("%s (instance of %s", name, loader->klass()->external_name());

  4147   if (!well_known_loader) {

  4148     oop pl = java_lang_ClassLoader::parent(loader);

  4149     ClassLoaderData *pl_cld = ClassLoaderData::class_loader_data(pl);

  4150     const char* parentName = pl_cld->loader_name_and_id();

  4151     if (pl != NULL) {

  4152       ss.print(", child of %s %s", parentName, pl->klass()->external_name());

  4153     } else {

  4154       // bootstrap loader

  4155       ss.print(", child of %s", parentName);

  4156     }

  4157   }

  4158   ss.print(")");

  4159 

  4160   return ss.as_string();