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src/hotspot/share/prims/jvmtiRedefineClasses.cpp
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rev 58565 : 8238358: Implementation of JEP 371: Hidden Classes
Reviewed-by: duke
Contributed-by: mandy.chung@oracle.com, lois.foltan@oracle.com, david.holmes@oracle.com, harold.seigel@oracle.com, serguei.spitsyn@oracle.com, alex.buckley@oracle.com, jamsheed.c.m@oracle.com
rev 58568 : [mq]: hidden-class-4
@@ -148,12 +148,12 @@
_res = JVMTI_ERROR_NULL_POINTER;
return false;
}
oop mirror = JNIHandles::resolve_non_null(_class_defs[i].klass);
- // classes for primitives and arrays and vm unsafe anonymous classes cannot be redefined
- // check here so following code can assume these classes are InstanceKlass
+ // classes for primitives, arrays, hidden and vm unsafe anonymous classes
+ // cannot be redefined.
if (!is_modifiable_class(mirror)) {
_res = JVMTI_ERROR_UNMODIFIABLE_CLASS;
return false;
}
}
@@ -291,12 +291,13 @@
// classes for arrays cannot be redefined
if (k == NULL || !k->is_instance_klass()) {
return false;
}
- // Cannot redefine or retransform an unsafe anonymous class.
- if (InstanceKlass::cast(k)->is_unsafe_anonymous()) {
+ // Cannot redefine or retransform a hidden or an unsafe anonymous class.
+ if (InstanceKlass::cast(k)->is_hidden() ||
+ InstanceKlass::cast(k)->is_unsafe_anonymous()) {
return false;
}
return true;
}
@@ -1237,15 +1238,16 @@
// Set redefined class handle in JvmtiThreadState class.
// This redefined class is sent to agent event handler for class file
// load hook event.
state->set_class_being_redefined(the_class, _class_load_kind);
+ ClassLoadInfo cl_info(protection_domain);
InstanceKlass* scratch_class = SystemDictionary::parse_stream(
the_class_sym,
the_class_loader,
- protection_domain,
&st,
+ cl_info,
THREAD);
// Clear class_being_redefined just to be sure.
state->clear_class_being_redefined();
// TODO: if this is retransform, and nothing changed we can skip it
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