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8008549: NPG: SystemDictionary::find(...) unnecessarily keeps class loaders alive

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SystemDictionary::find(...) should not create and register ClassLoaderData objects for class loaders.

Co-authored-by: Erik Helin <erik.helin@oracle.com>
Reviewed-by: coleenp, acorn
This commit is contained in:
Stefan Karlsson 2013-02-21 17:22:15 +01:00
parent 1a74b23a2f
commit 9ed09d08f5
4 changed files with 20 additions and 6 deletions
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10
hotspot/src/share/vm/classfile/classLoaderData.inline.hpp
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@ -25,9 +25,15 @@
#include "classfile/classLoaderData.hpp"
#include "classfile/javaClasses.hpp"
inline ClassLoaderData* ClassLoaderData::class_loader_data_or_null(oop loader) {
if (loader == NULL) {
return ClassLoaderData::the_null_class_loader_data();
}
return java_lang_ClassLoader::loader_data(loader);
}
inline ClassLoaderData* ClassLoaderData::class_loader_data(oop loader) {
if (loader == NULL) return ClassLoaderData::the_null_class_loader_data();
ClassLoaderData* loader_data = java_lang_ClassLoader::loader_data(loader);
ClassLoaderData* loader_data = class_loader_data_or_null(loader);
assert(loader_data != NULL, "Must be");
return loader_data;
}