src/share/vm/classfile/javaClasses.cpp

@@ -2555,11 +2555,31 @@
   InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass());
   jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
   *offset = value;
 }
 
+// Support for java_lang_invoke_DirectMethodHandle
 
+int java_lang_invoke_DirectMethodHandle::_member_offset;
+
+oop java_lang_invoke_DirectMethodHandle::member(oop dmh) {
+  oop member_name = NULL;
+  bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh);
+  assert(is_dmh, "a DirectMethodHandle oop is expected");
+  if (is_dmh) {
+    member_name = dmh->obj_field(member_offset_in_bytes());
+  }
+  return member_name;
+}
+
+void java_lang_invoke_DirectMethodHandle::compute_offsets() {
+  Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass();
+  if (klass_oop != NULL && EnableInvokeDynamic) {
+    compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature());
+  }
+}
+
 // Support for java_lang_invoke_MethodHandle
 
 int java_lang_invoke_MethodHandle::_type_offset;
 int java_lang_invoke_MethodHandle::_form_offset;
 

@@ -3203,10 +3223,11 @@
   java_lang_ClassLoader::compute_offsets();
   java_lang_Thread::compute_offsets();
   java_lang_ThreadGroup::compute_offsets();
   if (EnableInvokeDynamic) {
     java_lang_invoke_MethodHandle::compute_offsets();
+    java_lang_invoke_DirectMethodHandle::compute_offsets();
     java_lang_invoke_MemberName::compute_offsets();
     java_lang_invoke_LambdaForm::compute_offsets();
     java_lang_invoke_MethodType::compute_offsets();
     java_lang_invoke_CallSite::compute_offsets();
   }