question: get the meta information of the replica that matches the block id concode_field_sep Map<String,Map<Long,ReplicaInfo>> map concode_elem_sep Object mutex concode_field_sep ReplicaInfo add concode_elem_sep void initBlockPool concode_elem_sep void cleanUpBlockPool concode_elem_sep int size concode_elem_sep void addAll concode_elem_sep Object getMutext concode_elem_sep Collection<ReplicaInfo> replicas concode_elem_sep String[] getBlockPoolList concode_elem_sep void checkBlockPool concode_elem_sep void checkBlock concode_elem_sep ReplicaInfo remove concode_elem_sep ReplicaInfo remove
target: ReplicaInfo function ( String arg0 , long arg1 ) { checkBlockPool ( arg0 ) ; synchronized ( mutex ) { Map < Long , ReplicaInfo > loc0 = map . get ( arg0 ) ; return loc0 != null ? loc0 . get ( arg1 ) : null ; } }