src/hotspot/share/runtime/sharedRuntime.cpp

@@ -1052,10 +1052,25 @@
 
   // Find caller and bci from vframe
   methodHandle caller(THREAD, vfst.method());
   int          bci   = vfst.bci();
 
+  // Substitutability test implementation piggy backs on static call resolution
+  Bytecodes::Code code = caller->java_code_at(bci);
+  if (code == Bytecodes::_if_acmpeq || code == Bytecodes::_if_acmpne) {
+    bc = Bytecodes::_invokestatic;
+    methodHandle attached_method = extract_attached_method(vfst);
+    assert(attached_method.not_null(), "must have attached method");
+    LinkResolver::resolve_invoke(callinfo, receiver, attached_method, bc, CHECK_NH);
+#ifdef ASSERT
+    SystemDictionary::ValueBootstrapMethods_klass()->initialize(CHECK_NH);
+    Method* is_subst = SystemDictionary::ValueBootstrapMethods_klass()->find_method(vmSymbols::isSubstitutable_name(), vmSymbols::object_object_boolean_signature());
+    assert(callinfo.selected_method() == is_subst, "must be isSubstitutable method");
+#endif
+    return receiver;
+  }
+
   Bytecode_invoke bytecode(caller, bci);
   int bytecode_index = bytecode.index();
   bc = bytecode.invoke_code();
 
   methodHandle attached_method = extract_attached_method(vfst);

@@ -1355,20 +1370,10 @@
   // make sure caller is not getting deoptimized
   // and removed before we are done with it.
   // CLEANUP - with lazy deopt shouldn't need this lock
   nmethodLocker caller_lock(caller_nm);
 
-  if (!is_virtual && !is_optimized) {
-    SimpleScopeDesc ssd(caller_nm, caller_frame.pc());
-    Bytecode bc(ssd.method(), ssd.method()->bcp_from(ssd.bci()));
-    // Substitutability test implementation piggy backs on static call resolution
-    if (bc.code() == Bytecodes::_if_acmpeq || bc.code() == Bytecodes::_if_acmpne) {
-      SystemDictionary::ValueBootstrapMethods_klass()->initialize(CHECK_NULL);
-      return SystemDictionary::ValueBootstrapMethods_klass()->find_method(vmSymbols::isSubstitutable_name(), vmSymbols::object_object_boolean_signature());
-    }
-  }
-
   // determine call info & receiver
   // note: a) receiver is NULL for static calls
   //       b) an exception is thrown if receiver is NULL for non-static calls
   CallInfo call_info;
   Bytecodes::Code invoke_code = Bytecodes::_illegal;