--- a/hotspot/src/share/vm/prims/jvm.cpp Thu Mar 19 09:13:24 2009 -0700
+++ b/hotspot/src/share/vm/prims/jvm.cpp Fri Mar 20 23:19:36 2009 -0700
@@ -1242,7 +1242,7 @@
// Throws an exception if outer klass has not declared k as
// an inner klass
- Reflection::check_for_inner_class(k, inner_klass, CHECK_NULL);
+ Reflection::check_for_inner_class(k, inner_klass, true, CHECK_NULL);
result->obj_at_put(members, inner_klass->java_mirror());
members++;
@@ -1265,16 +1265,29 @@
JVM_ENTRY(jclass, JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass))
- const int inner_class_info_index = 0;
- const int outer_class_info_index = 1;
-
+{
// ofClass is a reference to a java_lang_Class object.
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
! Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_instance()) {
return NULL;
}
- instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+ symbolOop simple_name = NULL;
+ klassOop outer_klass
+ = instanceKlass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass))
+ )->compute_enclosing_class(simple_name, CHECK_NULL);
+ if (outer_klass == NULL) return NULL; // already a top-level class
+ if (simple_name == NULL) return NULL; // an anonymous class (inside a method)
+ return (jclass) JNIHandles::make_local(env, Klass::cast(outer_klass)->java_mirror());
+}
+JVM_END
+
+// should be in instanceKlass.cpp, but is here for historical reasons
+klassOop instanceKlass::compute_enclosing_class_impl(instanceKlassHandle k,
+ symbolOop& simple_name_result, TRAPS) {
+ Thread* thread = THREAD;
+ const int inner_class_info_index = inner_class_inner_class_info_offset;
+ const int outer_class_info_index = inner_class_outer_class_info_offset;
if (k->inner_classes()->length() == 0) {
// No inner class info => no declaring class
@@ -1288,35 +1301,51 @@
bool found = false;
klassOop ok;
instanceKlassHandle outer_klass;
+ bool inner_is_member = false;
+ int simple_name_index = 0;
// Find inner_klass attribute
- for(int i = 0; i < i_length && !found; i+= 4) {
+ for (int i = 0; i < i_length && !found; i += inner_class_next_offset) {
int ioff = i_icls->ushort_at(i + inner_class_info_index);
int ooff = i_icls->ushort_at(i + outer_class_info_index);
-
- if (ioff != 0 && ooff != 0) {
+ int noff = i_icls->ushort_at(i + inner_class_inner_name_offset);
+ if (ioff != 0) {
// Check to see if the name matches the class we're looking for
// before attempting to find the class.
if (i_cp->klass_name_at_matches(k, ioff)) {
klassOop inner_klass = i_cp->klass_at(ioff, CHECK_NULL);
- if (k() == inner_klass) {
- found = true;
+ found = (k() == inner_klass);
+ if (found && ooff != 0) {
ok = i_cp->klass_at(ooff, CHECK_NULL);
outer_klass = instanceKlassHandle(thread, ok);
+ simple_name_index = noff;
+ inner_is_member = true;
}
}
}
}
+ if (found && outer_klass.is_null()) {
+ // It may be anonymous; try for that.
+ int encl_method_class_idx = k->enclosing_method_class_index();
+ if (encl_method_class_idx != 0) {
+ ok = i_cp->klass_at(encl_method_class_idx, CHECK_NULL);
+ outer_klass = instanceKlassHandle(thread, ok);
+ inner_is_member = false;
+ }
+ }
+
// If no inner class attribute found for this class.
- if (!found) return NULL;
+ if (outer_klass.is_null()) return NULL;
// Throws an exception if outer klass has not declared k as an inner klass
- Reflection::check_for_inner_class(outer_klass, k, CHECK_NULL);
-
- return (jclass)JNIHandles::make_local(env, outer_klass->java_mirror());
-JVM_END
-
+ // We need evidence that each klass knows about the other, or else
+ // the system could allow a spoof of an inner class to gain access rights.
+ Reflection::check_for_inner_class(outer_klass, k, inner_is_member, CHECK_NULL);
+
+ simple_name_result = (inner_is_member ? i_cp->symbol_at(simple_name_index) : symbolOop(NULL));
+ return outer_klass();
+}
JVM_ENTRY(jstring, JVM_GetClassSignature(JNIEnv *env, jclass cls))
assert (cls != NULL, "illegal class");