Rob Godfrey created QPID-6014:
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Summary: [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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