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8243586: Optimize calls to SystemDictionaryShared::define_shared_package for classpath

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Define_shared_package only needs to be called once for each package in a jar specified in the shared class path.

Reviewed-by: iklam, dholmes, minqi
This commit is contained in:
Calvin Cheung 2020-07-01 21:05:14 +00:00
parent 4b85bd546e
commit dc74336a65
7 changed files with 118 additions and 22 deletions
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14
src/hotspot/share/classfile/systemDictionaryShared.cpp
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@ -872,7 +872,19 @@ Handle SystemDictionaryShared::init_security_info(Handle class_loader, InstanceK
// the corresponding SystemDictionaryShared::get_shared_xxx() function.
Handle manifest = get_shared_jar_manifest(index, CHECK_(pd));
Handle url = get_shared_jar_url(index, CHECK_(pd));
define_shared_package(class_name, class_loader, manifest, url, CHECK_(pd));
int index_offset = index - ClassLoaderExt::app_class_paths_start_index();
if (index_offset < PackageEntry::max_index_for_defined_in_class_path()) {
if (pkg_entry == NULL || !pkg_entry->is_defined_by_cds_in_class_path(index_offset)) {
// define_shared_package only needs to be called once for each package in a jar specified
// in the shared class path.
define_shared_package(class_name, class_loader, manifest, url, CHECK_(pd));
if (pkg_entry != NULL) {
pkg_entry->set_defined_by_cds_in_class_path(index_offset);
}
}
} else {
define_shared_package(class_name, class_loader, manifest, url, CHECK_(pd));
}
pd = get_shared_protection_domain(class_loader, index, url, CHECK_(pd));
}
}