I think I found the solution, perhaps it is gonna be usefull for someone.

The code below could be used as an example:


| //getting the cache's eviction RegionManager
| RegionManager regionMgr = cache.getEvictionRegionManager();
|
| //Creating your own EvictionConfiguration
| FIFOConfiguration config = new FIFOConfiguration();
| ((FIFOConfiguration) config).setMaxNodes(10);
|
| //New instance of an EvictionPolicy
| FIFOEviction eviction = new FIFOPolicy();
| //Configure eviction policy in the cache instance
| eviction.configure(cache);
| //finally, create the region
| regionMgr.createRegion("/foo/com", eviction, config);
|
|

What I was missing was the eviction configuration in the cache instance (eviction.configure(cache);) so I got a NullPointerException when the Timer threads did periodic node clean up by running the eviction policy.

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