jboner/akka — comment on commit 823a68ac0f77bac7c4a67f643ad50073051e0d2a
File: akka-tutorials/akka-tutorial-first/src/main/java/akka/tutorial/first/java/Pi.java line 19
By patriknw:

I see no reason to have ActorSystem as static field here, move it to calculate method.