[jira] [Resolved] (JCS-79) NullPointerException: defaultAuxValues in CompositeCacheManager

["Thomas Vandahl (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JCS-79?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Vandahl resolved JCS-79.
-------------------------------

       Resolution: Fixed
    Fix Version/s: jcs-1.4-dev

Fixed in SVN
                
> NullPointerException: defaultAuxValues in CompositeCacheManager
> ---------------------------------------------------------------
>
>                 Key: JCS-79
>                 URL: https://issues.apache.org/jira/browse/JCS-79
>             Project: JCS
>          Issue Type: Bug
>          Components: Composite Cache
>    Affects Versions: jcs-1.3
>         Environment: java version "1.6.0_20"
> Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-9M3165)
> Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
>            Reporter: Graham Leggett
>            Assignee: Aaron Smuts
>             Fix For: jcs-1.4-dev
>
>
> When an attempt is made to use torque's JCS support, JCS crashes on initialisation with a NullPointerException as below.
> The cause is that CompositeCacheConfiguration.parseRegion is passed a parameter called "value", and this value is not guarded against being null. The failure happens on this line:
>         StringTokenizer st = new StringTokenizer( value, "," );
> If value is a required string, a proper error message explaining exactly what the problem is, and exactly what the end user must do to fix it should be thrown.
> Looking further, the "value" comes from this field in CompositeCacheManager:
>     /** The default auxiliary caches to be used if not preconfigured */
>     protected String defaultAuxValues;
> This field is given no default value, and no documentation exists explaining how an end user might populate this value, or what the significance of this value is.
> The full stack trace looks like this:
> Caused by: java.lang.NullPointerException
> 	at java.util.StringTokenizer.<init>(StringTokenizer.java:182)
> 	at java.util.StringTokenizer.<init>(StringTokenizer.java:204)
> 	at org.apache.jcs.engine.control.CompositeCacheConfigurator.parseRegion(CompositeCacheConfigurator.java:321)
> 	at org.apache.jcs.engine.control.CompositeCacheConfigurator.parseRegion(CompositeCacheConfigurator.java:283)
> 	at org.apache.jcs.engine.control.CompositeCacheManager.getCache(CompositeCacheManager.java:448)
> 	at org.apache.jcs.engine.control.CompositeCacheManager.getCache(CompositeCacheManager.java:387)
> 	at org.apache.jcs.engine.control.CompositeCacheManager.getCache(CompositeCacheManager.java:374)
> 	at org.apache.jcs.JCS.getInstance(JCS.java:66)

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