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8165896: Use "open" flag from JVM_DefineModule to export all module packages

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Implemented VM side of open modules, which export all their packages unqualifiedly. Automatic modules and unnamed modules are treated internally as open modules.

Reviewed-by: alanb, hseigel, lfoltan
This commit is contained in:
Rachel Protacio 2017-04-24 12:08:28 -04:00
parent f9e13c6d3f
commit 9947f147f6
28 changed files with 205 additions and 93 deletions
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14
hotspot/src/share/vm/classfile/moduleEntry.cpp
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@ -172,6 +172,12 @@ void ModuleEntry::set_read_walk_required(ClassLoaderData* m_loader_data) {
}
}
// Set whether the module is open, i.e. all its packages are unqualifiedly exported
void ModuleEntry::set_is_open(bool is_open) {
assert_lock_strong(Module_lock);
_is_open = is_open;
}
// Returns true if the module has a non-empty reads list. As such, the unnamed
// module will return false.
bool ModuleEntry::has_reads_list() const {
@ -271,6 +277,7 @@ ModuleEntry* ModuleEntry::new_unnamed_module_entry(Handle module_handle, ClassLo
}
entry->set_loader_data(cld);
entry->_is_open = true;
TRACE_INIT_ID(entry);
@ -324,7 +331,8 @@ ModuleEntryTable::~ModuleEntryTable() {
free_buckets();
}
ModuleEntry* ModuleEntryTable::new_entry(unsigned int hash, Handle module_handle, Symbol* name,
ModuleEntry* ModuleEntryTable::new_entry(unsigned int hash, Handle module_handle,
bool is_open, Symbol* name,
Symbol* version, Symbol* location,
ClassLoaderData* loader_data) {
assert(Module_lock->owned_by_self(), "should have the Module_lock");
@ -351,6 +359,7 @@ ModuleEntry* ModuleEntryTable::new_entry(unsigned int hash, Handle module_handle
entry->set_loader_data(loader_data);
entry->set_version(version);
entry->set_location(location);
entry->set_is_open(is_open);
if (ClassLoader::is_in_patch_mod_entries(name)) {
entry->set_is_patched();
@ -371,6 +380,7 @@ void ModuleEntryTable::add_entry(int index, ModuleEntry* new_entry) {
}
ModuleEntry* ModuleEntryTable::locked_create_entry_or_null(Handle module_handle,
bool is_open,
Symbol* module_name,
Symbol* module_version,
Symbol* module_location,
@ -381,7 +391,7 @@ ModuleEntry* ModuleEntryTable::locked_create_entry_or_null(Handle module_handle,
if (lookup_only(module_name) != NULL) {
return NULL;
} else {
ModuleEntry* entry = new_entry(compute_hash(module_name), module_handle, module_name,
ModuleEntry* entry = new_entry(compute_hash(module_name), module_handle, is_open, module_name,
module_version, module_location, loader_data);
add_entry(index_for(module_name), entry);
return entry;