--- old/src/hotspot/share/classfile/javaClasses.cpp 2019-10-10 17:16:29.457932436 -0700 +++ new/src/hotspot/share/classfile/javaClasses.cpp 2019-10-10 17:16:29.205923392 -0700 @@ -1051,7 +1051,7 @@ Klass *ak = (Klass*)(archived_m->metadata_field(_array_klass_offset)); assert(ak != NULL || t == T_VOID, "should not be NULL"); if (ak != NULL) { - Klass *reloc_ak = MetaspaceShared::get_relocated_klass(ak); + Klass *reloc_ak = MetaspaceShared::get_relocated_klass(ak, true); archived_m->metadata_field_put(_array_klass_offset, reloc_ak); } @@ -1196,7 +1196,7 @@ // The archived mirror's field at _klass_offset is still pointing to the original // klass. Updated the field in the archived mirror to point to the relocated // klass in the archive. - Klass *reloc_k = MetaspaceShared::get_relocated_klass(as_Klass(mirror)); + Klass *reloc_k = MetaspaceShared::get_relocated_klass(as_Klass(mirror), true); log_debug(cds, heap, mirror)( "Relocate mirror metadata field at _klass_offset from " PTR_FORMAT " ==> " PTR_FORMAT, p2i(as_Klass(mirror)), p2i(reloc_k)); @@ -1206,7 +1206,7 @@ // higher array klass if exists. Relocate the pointer. Klass *arr = array_klass_acquire(mirror); if (arr != NULL) { - Klass *reloc_arr = MetaspaceShared::get_relocated_klass(arr); + Klass *reloc_arr = MetaspaceShared::get_relocated_klass(arr, true); log_debug(cds, heap, mirror)( "Relocate mirror metadata field at _array_klass_offset from " PTR_FORMAT " ==> " PTR_FORMAT, p2i(arr), p2i(reloc_arr)); @@ -1215,6 +1215,19 @@ return archived_mirror; } +void java_lang_Class::update_archived_mirror_native_pointers(oop archived_mirror) { + Klass* k = ((Klass*)archived_mirror->metadata_field(_klass_offset)); + if (k != NULL) { // k is NULL for the primitive classes such as java.lang.Byte::TYPE + archived_mirror->metadata_field_put(_klass_offset, (Klass*)(address(k) + MetaspaceShared::mapping_delta())); + } + + Klass* ak = ((Klass*)archived_mirror->metadata_field(_array_klass_offset)); + if (ak != NULL) { + archived_mirror->metadata_field_put(_array_klass_offset, (Klass*)(address(ak) + MetaspaceShared::mapping_delta())); + } +} + + // Returns true if the mirror is updated, false if no archived mirror // data is present. After the archived mirror object is restored, the // shared klass' _has_raw_archived_mirror flag is cleared. @@ -1236,6 +1249,7 @@ } log_debug(cds, mirror)("Archived mirror is: " PTR_FORMAT, p2i(m)); + update_archived_mirror_native_pointers(m); // mirror is archived, restore assert(HeapShared::is_archived_object(m), "must be archived mirror object");