[hibernate-dev] WildFly tests with ByteBuddy enhancement are failing

Scott added bytecode enhancement to some WildFly tests for WFLY-11891 [1], which are failing. Here is Scott's PR with the updated tests: [2] When I stepped into org.jboss.as.test.integration.jpa.basic.multiplepersistenceunittest.MultiplePuTestCase, I can see that they are failing in ByteBuddy code. I see that: - enhancement of org.jboss.as.test.integration.jpa.basic.SLSBPersistenceContexts gets skipped several times in a row; - enhancement of some other classes get skipped; - before trying to enhance org.jboss.as.test.integration.jpa.basic.SLSBPersistenceContexts$$$view5, an exception is thrown. Unfortunately, I'm having trouble getting a good stacktrace to show what happens in ByteBuddy code. Here is what I'm seeing: net.bytebuddy.pool.TypePool$Default.doDescribe("org.jboss.as.test.integration.jpa.basic.SLSBPersistenceContexts$$$view5") /* class name differs from run to run */ calls net.bytebuddy.dynamic.ClassFileLocator$ForClassLoader.locate( " org.jboss.as.test.integration.jpa.basic.SLSBPersistenceContexts$$$view5") calls net.bytebuddy.dynamic.ClassFileLocator.ForClassLoader.locate( classLoader, "org.jboss.as.test.integration.jpa.basic.SLSBPersistenceContexts$$$view5" ) calls classLoader.getResourceAsStream("org/jboss/as/test/integration/jpa/basic/SLSBPersistenceContexts$$$view5.class"), which returns null; (I don't actually see a class file with this name) returns new TypePool.Resolution.Illegal( "org/jboss/as/test/integration/jpa/basic/SLSBPersistenceContexts$$$view5.class" ) returns TypePool.Resolution.Illegal Ultimately, TypePool.Resolution.Illegal#resolve( ) throws IllegalStateException, because the type description cannot be resolved. I'm not sure if the problem is in WildFly, Hibernate, or ByteBuddy. To build WildFly: ./build.sh clean install -DskipTests=true To run the test: cd testsuite/integration/basic mvn install -Dtest=org/jboss/as/test/integration/jpa/basic/multiplepersistenceunittest/MultiplePuTestCase Help would be very much appreciated. Thanks, Gail [1] https://issues.jboss.org/browse/WFLY-11891 [2] https://github.com/wildfly/wildfly/pull/12180