"unimplemented Not counting objects in space" What means this Android log?

By Log tag: art
By Log message:
static void art::Dbg::DdmSendHeapSegments(bool) unimplemented Not counting objects in 
space SpaceTypeImageSpace begin=0x7097f000,end=0x712f4000,size=9MB,name="/data/dalvik-
cache/x86/system@framework@boot.art"]

Hello. I have question with it Android log. What is it? Maybe someone know?