TMtech questions

TMtech answers

• Unregister oracle change notification
• Android app getting Push Notification via FCM but not display the message
• Is there a way to block on a socket send() until we get the ack for that packet?
• relation between log4j and apache.commons.logging
• Java: Composite key in hashmaps
• io.undertow.request remote peer closed connection before all data could be read
• get real class name for cdi managed bean