-dontwarn sun.misc.**

-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
   long producerIndex;
   long consumerIndex;
}

-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef {
   rx.internal.util.atomic.LinkedQueueNode producerNode;
   rx.internal.util.atomic.LinkedQueueNode consumerNode;
}