- The callback_error_ handle was never being setup.

runtime/vm/dart.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/dart.h"
 
 #include "vm/code_observers.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
 #include "vm/flags.h"
@@ skipping 211 matching lines @@
   StubCode::Init(isolate);
   // TODO(regis): Reenable this code for arm and mips when possible.
 #if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64)
   isolate->megamorphic_cache_table()->InitMissHandler();
 #endif
   if (FLAG_heap_trace) {
     isolate->heap()->trace()->Init(isolate);
   }
   isolate->heap()->EnableGrowthControl();
   isolate->set_init_callback_data(data);
+  Api::SetupAcquiredError(isolate);
   if (FLAG_print_class_table) {
     isolate->class_table()->Print();
   }
   return Error::null();
 }
 
 
 void Dart::ShutdownIsolate() {
   Isolate* isolate = Isolate::Current();
   void* callback_data = isolate->init_callback_data();
@@ skipping 13 matching lines @@
   return predefined_handles_->handles_.AllocateScopedHandle();
 }
 
 
 bool Dart::IsReadOnlyHandle(uword address) {
   ASSERT(predefined_handles_ != NULL);
   return predefined_handles_->handles_.IsValidScopedHandle(address);
 }
 
 }  // namespace dart