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  1. Infinispan
  2. ISPN-12100

NPE when retrieving statistics

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Minor Minor
    • None
    • 9.4.18.Final
    • Hibernate Cache, WildFly Server
    • None

      When retrieving the statistics of infinispan caches I get a NullPointerException at the following place:

      java.lang.NullPointerException
	at org.infinispan@9.4.16.Final//org.infinispan.stats.impl.StatsImpl.<init>(StatsImpl.java:54)
	at org.infinispan@9.4.16.Final//org.infinispan.cache.impl.CacheImpl.getStats(CacheImpl.java:1405)
	at org.infinispan@9.4.16.Final//org.infinispan.cache.impl.AbstractDelegatingAdvancedCache.getStats(AbstractDelegatingAdvancedCache.java:301)
	at org.infinispan@9.4.16.Final//org.infinispan.stats.impl.CacheContainerStatsImpl.getStats(CacheContainerStatsImpl.java:617)
	at org.infinispan@9.4.16.Final//org.infinispan.stats.impl.CacheContainerStatsImpl.getRequiredMinimumNumberOfNodes(CacheContainerStatsImpl.java:138)

      This is while accessing the statistics through the cachemanager through the code below:

      @ApplicationScoped
public class InfinispanService {
	@Resource(name = "java:comp/env/infinispan/hibernate/entity")
	private Cache<?, ?> entityCache;

	public void stats() {
		EmbeddedCacheManager cacheManager = entityCache.getCacheManager();
		cacheManager.getStats().getRequiredMinimumNumberOfNodes();
	}
}

      This is done in wildfly 19.0.1.Final, running using standalone.xml.

      Obviously I'm digging into internals but probably this should not throw a NPE. The workaround is of course not calling getRequiredMinimumNumberOfNodes() (as in this particular case that is not configured IIUC).

              Unassigned Unassigned
              martijn.dashorst@topicus.nl Martijn Dashorst (Inactive)
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                Created:
                Updated: