spring-projects/spring-integration — pull request #1256 by artembilan (2014-08-13 12:06:13+00:00)
Title: INT-3495 Add `error-channel` to <tail-inbound-channel-adapter>

JIRA: https://jira.spring.io/browse/INT-3495

* Fix `AbstractEndpoint` JavaDoc

**Cherry-pick to 4.0.x & 3.0.x** only the first commit, because we can't change XSD for maintenance versions.