JCache bug? ISPN021015: Cache xyz-cache already registered

[genman]

Infinispan 6.0.2.Final release.

This exception is thrown, but I don't know why:

INFO  22-07 13:46:59,880 (org.infinispan.factories.GlobalComponentRegistry) - ISPN000128: Infinispan version: Infinispan 'Infinium' 6.0.2.Final
DEBUG 22-07 13:47:00,039 (org.infinispan.interceptors.InterceptorChain) - Interceptor chain size: 7
DEBUG 22-07 13:47:00,039 (org.infinispan.interceptors.InterceptorChain) - Interceptor chain is:
        >> org.infinispan.interceptors.InvocationContextInterceptor
        >> org.infinispan.interceptors.CacheMgmtInterceptor
        >> org.infinispan.interceptors.MarshalledValueInterceptor
        >> org.infinispan.interceptors.NotificationInterceptor
        >> org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor
        >> org.infinispan.interceptors.EntryWrappingInterceptor
        >> org.infinispan.interceptors.CallInterceptor
DEBUG 22-07 13:47:00,044 (org.infinispan.jmx.JmxUtil) - Object name org.infinispan:type=Cache,name="cert-cache(local)",manager="uri=org.infinispan.jcache.JCachingProvider/classlo
ader=sun.misc.Launcher$AppClassLoader@58e862c/provider=org.infinispan.jcache.JCachingProvider@39c5333",component=Cache already registered
INFO  22-07 13:47:00,044 (org.infinispan.jmx.CacheJmxRegistration) - ISPN000031: MBeans were successfully registered to the platform MBean server.
DEBUG 22-07 13:47:00,045 (org.infinispan.CacheImpl) - Started cache cert-cache on null
DEBUG 22-07 13:47:00,053 (MyMDB) - failed, attempting to retry
javax.cache.CacheException: ISPN021015: Cache cert-cache already registered with configuration javax.cache.configuration.MutableConfiguration@89febc62, and can not be registered
again with a new given configuration javax.cache.configuration.MutableConfiguration@89febc62
        at org.infinispan.jcache.JCacheManager.createCache(JCacheManager.java:194)
        at org.infinispan.jcache.annotation.DefaultCacheResolver.resolveCache(DefaultCacheResolver.java:53)
        at org.infinispan.jcache.annotation.DefaultCacheResolver$Proxy$_$$_WeldClientProxy.resolveCache(Unknown Source)
        at org.infinispan.jcache.annotation.AbstractCacheResultInterceptor.cacheResult(AbstractCacheResultInterceptor.java:56)
        at org.infinispan.jcache.annotation.CacheResultInterceptor.cacheResult(CacheResultInterceptor.java:47)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:74)
        at org.jboss.weld.interceptor.chain.AbstractInterceptionChain.invokeNext(AbstractInterceptionChain.java:116)
        at org.jboss.weld.interceptor.chain.AbstractInterceptionChain.invokeNextInterceptor(AbstractInterceptionChain.java:94)
        at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:43)
        at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:36)
        at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:51)
        at ...MockCertificateBean$Proxy$_$$_WeldSubclass.findCertificate(Unknown Source)
        at ...MockCertificateBean$Proxy$_$$_WeldClientProxy.findCertificate(Unknown Souzxxrce)

I'm using the JCache API, like so:

/**
* Produces the configuration for Infinispan.
*/
public class CertificateCacheConfig {

    static final String name = "cert-cache";

    @ConfigureCache(name)
    @Produces
    public Configuration cacheConfiguration() {
        return new ConfigurationBuilder().eviction()
                .strategy(EvictionStrategy.LRU).maxEntries(100).build();
    }

}

The method:

@Specializes
@ApplicationScoped
public class MockCertificateBean extends CertificateBean {

    @Override
    @CacheResult(cacheName=CertificateCacheConfig.name)
    public Certificate findCertificate(String passTypeId) {
...
    }
}

I'm wondering what's going on, as it seems mostly harmless but I don't want the exception thrown every time the method is called.

Could it be because of multi-threading issues or a bug? I'm guessing in a context of an MDB this can happen as many threads are probably calling DefaultCacheResolver.resolveCache and there is no locking in that class.

[genman]

The work-around is to manually create the cache before using it:

    @PostConstruct
    protected void postConstruct() {
        CacheManager cm = Caching.getCachingProvider().getCacheManager();
        cm.createCache(CertificateCacheConfig.name, new MutableConfiguration<>());
    }

[sebastian.laskawiec]

Hi genman!

I'm assuming that you are using some managed environment (app server). In that case, please make sure that you are using proper Interceptor in beans.xml file:

• org.infinispan.jcache.annotation.InjectedCacheResultInterceptor

If this does not solve the case - please paste your beans.xml. Hopefully we'll find some answers there.