Problems w/ NamedCache.release()

Question

Our app was experiencing memory leaks so we called NamedCache.release().
This fixed the memory leak.
Unfortunately, this caused various other issues w/ concurrency...
We had illegalstate exceptions,
eg.
java.lang.IllegalStateException: Map has been invalidated:
Just wondering whether there is another was to release references instead of NamedCache.release().

Answer 1

Hi Sriram,
The NamedCache.release() call should never throw an IllegalStateException. Usually it happens when one thread call release() while another tries to access the cache (e.g. with NamedCache.get()).
The best approach to resolve this is to use try-catch block (see discussion in Re: calling CacheFactory.getCache()).
You may want to do something different in the catch block:
try
    return cache.get(aKey)
catch (IllegalStateException ise)
    log.warn(ise.getMessage(), ise);
    cache.release();
    // Can we just return null?
    return null;
    } Regards,
Gene