Artem Bilan 31b0f54f4b Various polishing and optimizations ...

* Check for `null` package in the `JacksonJsonUtils`.
Also don't call `this.delegate.typeFromId()` the second time
* Increase wait timeout in the `QueueChannelTests`
* Check `ZookeeperMetadataStore.addListener()` for `null`

**Cherry-pick to 4.3.x**

2017-07-14 16:33:07 -04:00

..

main

Various polishing and optimizations

2017-07-14 16:33:07 -04:00

test

Various polishing and optimizations

2017-07-14 16:33:07 -04:00