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https://issues.apache.org/jira/browse/QPID-6412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Godfrey resolved QPID-6412.
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Resolution: Fixed
Reviewed by me - changes look good and I can see no more instances of fields
being declared of type ConcurrentHashMap.
I do wonder if we can write some sort of check for this that could be picked up
by checkstyle / sonar or equivalent... or even in our IDEs
> Declare variables as ConcurrentMap not ConcurrentHashMap to avoid issues
> after compiling on Java 8
> --------------------------------------------------------------------------------------------------
>
> Key: QPID-6412
> URL: https://issues.apache.org/jira/browse/QPID-6412
> Project: Qpid
> Issue Type: Improvement
> Components: Java Broker, Java Client, Java Common
> Affects Versions: 0.32
> Reporter: Keith Wall
> Assignee: Rob Godfrey
> Fix For: 6.0 [Java]
>
>
> Java 8 redefines the method keySet() on ConcurrentHashMap to return a
> narrower type than the standard return type given in the Map interface. If
> the code is compiled in Java 8 and then run under Java 7 this causes linking
> issues.
> Avoid these issues by always declaring variables in terms of the interface
> ConcurrentMap
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