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8227046: compiler implementation for sealed classes

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8225056: VM support for sealed classes
8227044: javax.lang.model for sealed classes
8227045: Preview APIs support for sealed classes
8227047: Javadoc for sealed types
8245854: JVM TI Specification for sealed classes

Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Jan Lahoda <jan.lahoda@oracle.com>
Reviewed-by: mcimadamore, forax, darcy, dholmes, jlahoda, lfoltan, mchung, sspitsyn, vromero
This commit is contained in:
Vicente Romero 2020-06-01 17:00:40 -04:00
parent 567692e4ae
commit d42bfef8a4
139 changed files with 6877 additions and 192 deletions
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27
src/hotspot/share/prims/jvm.cpp
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@ -2101,6 +2101,33 @@ JVM_ENTRY(jobjectArray, JVM_GetNestMembers(JNIEnv* env, jclass current))
}
JVM_END
JVM_ENTRY(jobjectArray, JVM_GetPermittedSubclasses(JNIEnv* env, jclass current))
{
JVMWrapper("JVM_GetPermittedSubclasses");
assert(!java_lang_Class::is_primitive(JNIHandles::resolve_non_null(current)), "should not be");
Klass* c = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(current));
assert(c->is_instance_klass(), "must be");
InstanceKlass* ik = InstanceKlass::cast(c);
{
JvmtiVMObjectAllocEventCollector oam;
Array<u2>* subclasses = ik->permitted_subclasses();
int length = subclasses == NULL ? 0 : subclasses->length();
objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
length, CHECK_NULL);
objArrayHandle result(THREAD, r);
for (int i = 0; i < length; i++) {
int cp_index = subclasses->at(i);
// This returns <package-name>/<class-name>.
Symbol* klass_name = ik->constants()->klass_name_at(cp_index);
assert(klass_name != NULL, "Unexpected null klass_name");
Handle perm_subtype_h = java_lang_String::create_from_symbol(klass_name, CHECK_NULL);
result->obj_at_put(i, perm_subtype_h());
}
return (jobjectArray)JNIHandles::make_local(THREAD, result());
}
}
JVM_END
// Constant pool access //////////////////////////////////////////////////////////
JVM_ENTRY(jobject, JVM_GetClassConstantPool(JNIEnv *env, jclass cls))