spring-projects/spring-xd — pull request #1311 by sshcherbakov (2014-12-02 13:34:58+00:00)
Title: Improve SimpleDateFormat instantiation in TupleBuilder

The `TupleBuilder.tuple()` call is very expensive.
It can affect Spring Integration flow throughput if called for each message.
This pull request replaces the `SimpleDateFormat` instantiation with static `ThreadLocal` variable.