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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-6014) [Java] Declare variables as ConcurrentMap not ConcurrentHashMap to avoid issues afetr compiling on Java 8
Date Mon, 18 Aug 2014 18:14:18 GMT

    [ https://issues.apache.org/jira/browse/QPID-6014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14100978#comment-14100978
] 

ASF subversion and git services commented on QPID-6014:
-------------------------------------------------------

Commit 1618690 from [~godfrer] in branch 'qpid/trunk'
[ https://svn.apache.org/r1618690 ]

QPID-6014 : [Java] declare variables as ConcurrentMap not ConcurrentHashMap to avoid linking
issues after compiling under Java 8

> [Java] Declare variables as ConcurrentMap not ConcurrentHashMap to avoid issues afetr
compiling on Java 8
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: QPID-6014
>                 URL: https://issues.apache.org/jira/browse/QPID-6014
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Broker, Java Client, Java Common
>            Reporter: Rob Godfrey
>            Assignee: Rob Godfrey
>             Fix For: 0.31
>
>
> 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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