[jbosscache-issues] [JBoss JIRA] Created: (JBCACHE-1515) Evicition Algorithms Can Fail In Overflow Situations

[Jimmy Wilson (JIRA)]

Evicition Algorithms Can Fail In Overflow Situations
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                 Key: JBCACHE-1515
                 URL: https://jira.jboss.org/jira/browse/JBCACHE-1515
             Project: JBoss Cache
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Eviction
    Affects Versions: 1.4.1.SP13
            Reporter: Jimmy Wilson
            Assignee: Jimmy Wilson
             Fix For: 1.4.X


The configuration for LRU time-to-live (TTL) takes a value in seconds, and casts it as an int. This value is then manipulated dynamically to determine if a cache entry should be evicted. The problem with the LRUAlgorithm (line 50) is that it multiplies the int value by 1000 and compares it to another long (neither the TTL nor the conversion factor are cast to long). If the configured TTL is more than 2,147,484 (1/1000 of Integer.MAX_VALUE), the result of the multiplication will be a negative number and eviction will always be triggered immediately. This problem can be corrected by changing the multiplier from "1000" to "1000L".

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