Hi, I have a 2 node cache, and I use ClusterCacheLoader (JBossCache 1.4.1.SP3).
I set inactiveOnStartup to true on startup of the AS, and as I deploy
applications taht uses the cache, I activate the regions it uses
programatically.
Problem is that when I deploy an app, in node one, it works perfectly. Then I
deploy/start application in node 2, an exception is thrown.
| java.lang.NullPointerException
| at
org.jboss.cache.loader.ClusteredCacheLoader.callRemote(ClusteredCacheLoader.java:98)
| at
org.jboss.cache.loader.ClusteredCacheLoader.getChildrenNames(ClusteredCacheLoader.java:66)
| at
org.jboss.cache.loader.AsyncCacheLoader.getChildrenNames(AsyncCacheLoader.java:157)
|
I downloaded the source code, and fixed my problem by doing this:
replaced (in ClusteredCacheLoader):
| if (((Boolean) clusteredGetResp.get(0)).booleanValue())
|
with:
| Boolean resp = (Boolean) ((clusteredGetResp!=null &&
clusteredGetResp.size()>0)? clusteredGetResp.get(0):null);
| if (resp !=null && resp.booleanValue())
|
Also, I have seen this is not aplicable to 2.0 branch, as it uses Java 5
features.
I don`t know if this is a bug, or I`m doing something wrong. Probably you can
evaluate it better than I.
Another question is in documentation it states that whenever you want to use
region activation/inactivation with cacheloader, the cacheloader should
implement ExtendedCacheLoader, which ClusteredCacheLoader does not.
Thanks
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