Some files of this project come from GWT as described: - com.android.sched.util.collect.* come from com.google.gwt.dev.util.collect - com.android.sched.util.json.* come from com.google.gwt.dev.json - com.android.sched.util.log and com.android.sched.util.log.speedtracer: Event, EvenType, Tracer, Format, SpeedTracer, SpeedTracerEventType was created with fragment of com.google.gwt.dev.util.log.speedtracer.*