Catch Exception to release allowSendSemaphore
Mock server to respond and close channel in a sync way
Merge branch 'master.flozano' of github.com:flozano/java-apns into master.flozano
Move drainBuffer from onChannelClosed to onDeliveryResult \
Do not drainBuffer from sendMessage, is not needed
All error responses in a sync way
Fix assertions for multithread tests