[infinispan-issues] [JBoss JIRA] (ISPN-3032) Use both context and class' class loader when reading component metadata

[Mircea Markus (JIRA)]

Mircea Markus created ISPN-3032:
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             Summary: Use both context and class' class loader when reading component metadata
                 Key: ISPN-3032
                 URL: https://issues.jboss.org/browse/ISPN-3032
             Project: Infinispan
          Issue Type: Enhancement
            Reporter: Mircea Markus
            Assignee: Mircea Markus


{quote}
Caused by: org.hibernate.search.SearchException: Unable to initialize
directory provider:
org.hibernate.search.test.integration.jbossas7.model.Member
	at org.hibernate.search.store.impl.DirectoryProviderFactory.createDirectoryProvider(DirectoryProviderFactory.java:87)
	at org.hibernate.search.indexes.impl.DirectoryBasedIndexManager.createDirectoryProvider(DirectoryBasedIndexManager.java:232)
	at org.hibernate.search.indexes.impl.DirectoryBasedIndexManager.initialize(DirectoryBasedIndexManager.java:100)
	at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManager(IndexManagerHolder.java:227)
	... 19 more
Caused by: org.infinispan.config.ConfigurationException:
org.infinispan.CacheException: Unable to load component metadata!
	at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:386)
	at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:341)
	at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:328)
	at org.hibernate.search.infinispan.CacheManagerServiceProvider.start(CacheManagerServiceProvider.java:93)
	at org.hibernate.search.engine.impl.StandardServiceManager$ServiceProviderWrapper.startVirtual(StandardServiceManager.java:178)
	at org.hibernate.search.engine.impl.StandardServiceManager.requestService(StandardServiceManager.java:124)
	at org.hibernate.search.infinispan.impl.InfinispanDirectoryProvider.initialize(InfinispanDirectoryProvider.java:86)
	at org.hibernate.search.store.impl.DirectoryProviderFactory.createDirectoryProvider(DirectoryProviderFactory.java:84)
	... 22 more
Caused by: org.infinispan.CacheException: Unable to load component metadata!
	at org.infinispan.factories.components.ComponentMetadataRepo.initialize(ComponentMetadataRepo.java:131)
	at org.infinispan.factories.GlobalComponentRegistry.<init>(GlobalComponentRegistry.java:103)
	at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:381)
	... 29 more
Caused by: java.lang.NullPointerException
	at org.infinispan.factories.components.ComponentMetadataRepo.readMetadata(ComponentMetadataRepo.java:53)
	at org.infinispan.factories.components.ComponentMetadataRepo.initialize(ComponentMetadataRepo.java:129)
	... 31 more
{quote}
The exception above is caused by Infinispan using (by default) invocation context's ClassLoader when trying to read the component metadata. In a modularized environment such as AS7 this will cause the metadata not to be found (metadata is packaged in the same jar as the infinispan class  that reads it). In order to overcome this problem we should try to use both class' ClassLoader and InvocationContxt's class loader when trying to read the metadata.
Workaround: set the class loader on the GlobalConfiguration object:
{code:java}
GlobalConfiguration.classLoader( GlobalConfiguration.class.getClassLoder())
{code}

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