[infinispan-issues] [JBoss JIRA] (ISPN-9561) GlobalConfiguration should keep strong reference to classloader

GlobalConfiguration should keep strong reference to classloader --------------------------------------------------------------- Key: ISPN-9561 URL: https://issues.jboss.org/browse/ISPN-9561 Project: Infinispan Issue Type: Bug Components: Core Affects Versions: 9.4.0.CR3 Reporter: Dan Berindei Assignee: Dan Berindei Fix For: 9.4.0.Final {{GlobalConfiguration}} uses a {{WeakReference}} to store its classloader, in order to allow {{JCachingProvider}} to use a {{WeakHashMap<ClassLoader, DefaultCacheManager>}}. The weak reference works fine when the classloader is the application classloader, but if the application (or the server, in our case) creates a {{ClassLoader}} instance just for the Infinispan configuration, that classloader can be garbage collected while the cache manager is starting. That is exactly what happens during server startup sometimes, making {{GlobalComponentRegistry}} use the TCCL for module initialization and ignoring all the non-core modules. We can still use a {{WeakClassLoader}} adapter that wraps a {{WeakReference<ClassLoader>}} for {{JCachingProvider}}.