HHH-10121 - Have EMF#getProperties expose ValidatorFactory injected via 2-phase load

(cherry picked from commit eb54414)

Author: sebersole

hibernate-entitymanager/src/main/java/org/hibernate/jpa/internal/EntityManagerFactoryImpl.java

@@ -123,6 +123,14 @@ public EntityManagerFactoryImpl(
 		HashMap<String,Object> props = new HashMap<String, Object>();
 		addAll( props, sessionFactory.getProperties() );
 		addAll( props, configurationValues );
+		if ( !props.containsKey( AvailableSettings.VALIDATION_FACTORY ) ) {
+			if ( sessionFactory.getSessionFactoryOptions().getValidatorFactoryReference() != null ) {
+				props.put(
+						AvailableSettings.VALIDATION_FACTORY,
+						sessionFactory.getSessionFactoryOptions().getValidatorFactoryReference()
+				);
+			}
+		}
 		maskOutSensitiveInformation( props );
 		this.properties = Collections.unmodifiableMap( props );
 		String entityManagerFactoryName = (String)this.properties.get( AvailableSettings.ENTITY_MANAGER_FACTORY_NAME);

hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/beanvalidation/ValidatorFactory2PhaseInjectionTest.java

@@ -0,0 +1,68 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.jpa.test.beanvalidation;
+
+import java.net.URL;
+import java.util.Collections;
+
+import javax.persistence.EntityManagerFactory;
+import javax.validation.Validation;
+import javax.validation.ValidatorFactory;
+
+import org.hibernate.jpa.AvailableSettings;
+import org.hibernate.jpa.HibernatePersistenceProvider;
+import org.hibernate.jpa.boot.spi.Bootstrap;
+import org.hibernate.jpa.boot.spi.EntityManagerFactoryBuilder;
+import org.hibernate.jpa.test.jee.OrmVersionTest;
+
+import org.hibernate.testing.junit4.BaseUnitTestCase;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertSame;
+
+/**
+ * Test injection of ValidatorFactory using WF/Hibernate 2-phase boot process
+ *
+ * @author Steve Ebersole
+ */
+public class ValidatorFactory2PhaseInjectionTest extends BaseUnitTestCase {
+	private ValidatorFactory vf;
+
+	@Before
+	public void before() {
+		vf = Validation.byDefaultProvider().configure().buildValidatorFactory();
+	}
+
+	@After
+	public void after() {
+		if ( vf != null ) {
+			vf.close();
+		}
+	}
+
+	@Test
+	public void testInjectionAvailabilityFromEmf() {
+		EntityManagerFactoryBuilder emfb = Bootstrap.getEntityManagerFactoryBuilder(
+				new OrmVersionTest.PersistenceUnitInfoImpl( "my-test" ) {
+					@Override
+					public URL getPersistenceUnitRootUrl() {
+						// just get any known url...
+						return HibernatePersistenceProvider.class.getResource( "/org/hibernate/jpa/persistence_1_0.xsd" );
+					}
+				},
+				Collections.emptyMap()
+		);
+
+		emfb.withValidatorFactory( vf );
+
+		EntityManagerFactory emf = emfb.build();
+		assertSame( vf, emf.getProperties().get( AvailableSettings.VALIDATION_FACTORY ) );
+		emf.close();
+	}
+}