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 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040258#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...