Warning KitKat ART-build

Question

I have an application that works fine with KitKat 4.4.2 and ART-build, however I get a warning when scrolling between my fragments. I have tabs + Viewpager using ActionBarSherlock:

01-13 14:26:20.550 28671-28671/com.test.xxx W/art﹕ Attempt to remove local SIRT entry from IRT, ignoring 01-13 14:26:20.640 28671-29243/com.test.xxx W/art: Thread[26,tid=29243,Native,Thread*=0x4486f6b0,peer=0x64a178e8,"Thread-2333"] attached without supplying a name 

Is this something bothering or can I just ignore it? The only information I found about this was in the Android source code:

  void Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, Object* thread_group) { Thread::Attach(thread_name, as_daemon, thread_group); if (thread_name == NULL) { LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; } }