Add ErrorHandler strategy for MessageListener containers [SPR-6142]

[spring-projects-issues]

Mark Fisher opened SPR-6142 and commented

The ErrorHandler interface was added for TaskScheduler implementations in 3.0. However, the interface itself is completely generic and could also be used for handling uncaught errors (other than JMSExceptions, which are already handled by the JMS ExceptionListener) in a MessageListener container rather than logging only.

First, the ErrorHandler interface should be moved from the 'scheduling' package to 'util'.

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Referenced from: commits 616a48a, dedecf7

[spring-projects-issues]

Mark Fisher commented

Moved the ErrorHandler strategy interface to org.springframework.util:
https://fisheye.springsource.org/changelog/spring-framework?cs=1964

This also required some changes to classes/methods that were previously package-protected, since the dependency is shared across multiple sub-packages under 'scheduling'.