Branch: refs/heads/master Home: https://github.com/hibernate/hibernate-orm Commit: 9d4d0ae63b3611f94f0858fcb62b705e57aca93f https://github.com/hibernate/hibernate-orm/commit/9d4d0ae63b3611f94f0858f... Author: Guillaume Smet <guillaume.smet(a)gmail.com&gt; Date: 2018-05-25 (Fri, 25 May 2018) Changed paths: M hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/BytecodeProviderImpl.java M hibernate-core/src/test/java/org/hibernate/test/bytecode/ReflectionOptimizerTest.java Log Message: ----------- HHH-12584 In fact, we can provide a ReflectionOptimizer, just without the fast class instantiator The fast class instantiator don't make sense for an abstract class or an interface. I checked the code and we can indeed instantiate a ReflectionOptimizer without a fast class instantiator. **NOTE:** This service been marked for deprecation: https://developer.github.com/changes/2018-04-25-github-services-deprecation/ Functionality will be removed from GitHub.com on January 31st, 2019.