Bolt is a UDP-based networking library which that offers support for:

• Optional reliability.
• Optional ordering.
• Automatic serialization of large messages into packets.
• Session management.
• High level Client and multi-tenanted Server endpoints.
• Reactive API for easy handling of both messages and connection state events.
• Custom codec registration for message types.
• Session statistics.
• Application level simulation of packet loss, latency and jitter.

Proposed Work

• Publish to maven central
• Single Sender/Receiver threads
• Review all thread sleeps in production code
• Consider 16/32 bit packet checksum (UDP checksum is only 16 bit - not safe enough)
• Optimize bandwidth limit pipe polling
• Compatibility version
• Rendezvous mode
• Discoverable MTU
• Retransmit strategy (aggressive, on NAK)
• Reduce 1+ second startup of local client/server
• Consider making a sequence number class to encapsulate overflow, comparison, etc logic
• Configurable timeout on no response
• Review Javadoc
• Separate to core and api packages
• IPv6 support
• Performance testing high-volume of single packets
• Performance testing, high-volume of large messages
• General performance testing
• Validate thread cleanup
• Improve statistics legibility
• Improve performance of sender onAcknowledgement
• Improve performance in high-packet loss scenarios