scottmarlow

dDAFSDAFA

scottmarlow

at net.bytebuddy.pool.TypePool$Resolution$Illegal.resolve(TypePool.java:159)
at net.bytebuddy.pool.TypePool$Default$WithLazyResolution$LazyTypeDescription.delegate(TypePool.java:1407)
at net.bytebuddy.description.type.TypeDescription$AbstractBase$OfSimpleType$WithDelegation.getModifiers(TypeDescription.java:8115)
at net.bytebuddy.dynamic.scaffold.InstrumentedType$Factory$Default$1.represent(InstrumentedType.java:359)
at net.bytebuddy.ByteBuddy.redefine(ByteBuddy.java:731)
at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.lambda$enhance$0(EnhancerImpl.java:137)
at org.hibernate.bytecode.internal.bytebuddy.ByteBuddyState.rewrite(ByteBuddyState.java:149)
at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.enhance(EnhancerImpl.java:136)

scottmarlow

http://docs.wildfly.org/14/Developer_Guide.html#persistence-unit-properties lists the various WildFly persistence unit hints, some of them, which can prevent runtime bytecode enhancement.  

Some chicken/egg situations:

1.  CDI deployment processing reads application deployment class definitions into memory, if the Hibernate ORM javax.persistence.spi.ClassTransformer is not yet registered at the time that the application class definitions are read by the CDI deployment processor, then runtime bytecode enhancement will not occur.

2. Application deployments that include @DataSourceDefinition and include persistence units that use the application defined datasource, will need to bootstrap the persistence unit very late (e.g. well after applications class definitions are already read), as the @DataSourceDefinition is not available before application classes have already been read.  These apps might set jboss.as.jpa.classtransformer=false or wildfly.jpa.twophasebootstrap=false (see example unit test [1]).

[1] h

scottmarlow

[INFO] Running org.jboss.as.test.integration.jpa.transaction.TransactionTestCase
[ERROR] Tests run: 12, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 10.836 s <<< FAILURE! - in org.jboss.as.test.integration.jpa.transaction.TransactionTestCase
[ERROR] testConcurrentAccess(org.jboss.as.test.integration.jpa.transaction.TransactionTestCase)  Time elapsed: 7.008 s  <<< ERROR!
java.util.concurrent.ExecutionException: java.lang.RuntimeException: javax.ejb.EJBException: java.lang.NullPointerException
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:192)
        at org.jboss.as.test.integration.jpa.transaction.TransactionTestCase.testConcurrentAccess(TransactionTestCase.java:309)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43

scottmarlow

[INFO] Running org.jboss.as.test.integration.jpa.transaction.TransactionTestCase
[ERROR] Tests run: 12, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 4.53 s <<< FAILURE! - in org.jboss.as.test.integration.jpa.transaction.TransactionTestCase
[ERROR] testConcurrentAccess(org.jboss.as.test.integration.jpa.transaction.TransactionTestCase)  Time elapsed: 0.583 s  <<< ERROR!
java.util.concurrent.ExecutionException: java.lang.RuntimeException: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet : EntityKey[org.jboss.as.test.integration.jpa.transaction.Employee#500]
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:192)
        at org.jboss.as.test.integration.jpa.transaction.TransactionTestCase.testConcurrentAccess(TransactionTestCase.java:309)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.r

scottmarlow

[ERROR] Tests run: 12, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 11.265 s <<< FAILURE! - in org.jboss.as.test.integration.jpa.transaction.TransactionTestCase
[ERROR] testConcurrentAccess(org.jboss.as.test.integration.jpa.transaction.TransactionTestCase)  Time elapsed: 1.684 s  <<< ERROR!
java.util.concurrent.ExecutionException: java.lang.RuntimeException: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet : EntityKey[org.jboss.as.test.integration.jpa.transaction.Employee#500]
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:192)
        at org.jboss.as.test.integration.jpa.transaction.TransactionTestCase.testConcurrentAccess(TransactionTestCase.java:309)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      

scottmarlow

package org.hibernate.service;

import java.util.Map;

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cache.internal.RegionFactoryInitiator;
import org.hibernate.cache.spi.RegionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.spi.ServiceContributor;

scottmarlow

mv = cw.visitMethod(ACC_PUBLIC, "nullSafeGet", "(Ljava/sql/ResultSet;[Ljava/lang/String;Lorg/hibernate/engine/spi/SharedSessionContractImplementor;Ljava/lang/Object;)Ljava/lang/Object;", null, new String[] { "org/hibernate/HibernateException", "java/sql/SQLException" });
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitTypeInsn(CHECKCAST, "org/hibernate/engine/spi/SessionImplementor");
mv.visitVarInsn(ALOAD, 4);
mv.visitMethodInsn(INVOKEVIRTUAL, "org/jboss/as/test/integration/hibernate/Student", "nullSafeGet", "(Ljava/sql/ResultSet;[Ljava/lang/String;Lorg/hibernate/engine/spi/SessionImplementor;Ljava/lang/Object;)Ljava/lang/Object;", false);
mv.visitInsn(ARETURN);

scottmarlow

public class StateType implements UserType {

    // this represents what the transformer will generate
    public Object nullSafeGet(ResultSet rs, String[] names, org.hibernate.SharedSessionContract session, Object owner) throws HibernateException, SQLException {
        return nullSafeGet(rs,names, (SessionImplementor)session, owner);
    }

    public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner) throws HibernateException, SQLException {
        int result = rs.getInt( names[0] );
        if ( rs.wasNull() ) return null;

scottmarlow

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0