[JCS-102] JCS.getGroupKeys() always triggers a\ ClassCastException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: jcs-2.0-beta-1
• Fix Version/s: jcs-2.0-beta-1
• Component/s: Composite Cache
• Assignee: Thomas Vandahl
• Reporter: Robert Clark
• Created: 23/Dec/12 21:43
• Updated: 12/Nov/15 12:59
• Resolved: 06/Jan/14 17:21

Description

Using SVN version build Dec 20, 2012:

This code:

JCS<Long, String> jcs = JCS.getInstance("the region");
jcs.getGroupKeys("the group");
jcs.putInGroup(Long.valueOf(1), "the group", "some value");
jcs.getGroupKeys("the group");

will trigger an exception on the second getGroupKeys() call (when there is actually something in the cache)

Exception in thread "main" java.lang.ClassCastException: java.lang.Long cannot be cast to org.apache.jcs.engine.control.group.GroupAttrName
     [java] 	at org.apache.jcs.access.GroupCacheAccess.getGroupKeys(GroupCacheAccess.java:205)
     [java] 	at my.sample.code.Main.main(Main.java:108)