HHH-11294 - NPE in org.hibernate.jpa.internal.util.PersistenceUtilHelper.isInitialized(PersistentAttributeInterceptable)

hibernate-entitymanager/src/main/java/org/hibernate/jpa/internal/util/PersistenceUtilHelper.java

@@ -20,9 +20,11 @@ import java.util.WeakHashMap;
 import javax.persistence.spi.LoadState;
 
 import org.hibernate.HibernateException;
+import org.hibernate.bytecode.enhance.spi.interceptor.LazyAttributeLoader;
 import org.hibernate.bytecode.instrumentation.internal.FieldInterceptionHelper;
 import org.hibernate.bytecode.instrumentation.spi.FieldInterceptor;
 import org.hibernate.collection.spi.PersistentCollection;
+import org.hibernate.engine.spi.PersistentAttributeInterceptable;
 import org.hibernate.proxy.HibernateProxy;
 import org.hibernate.proxy.LazyInitializer;
 
@@ -83,6 +85,10 @@ public final class PersistenceUtilHelper {
 			final boolean isInitialized = interceptor == null || interceptor.isInitialized();
 			return isInitialized ? LoadState.LOADED : LoadState.NOT_LOADED;
 		}
+		else if ( reference instanceof PersistentAttributeInterceptable ) {
+			final boolean isInitialized = isInitialized( (PersistentAttributeInterceptable) reference );
+			return isInitialized ? LoadState.LOADED : LoadState.NOT_LOADED;
+		}
 		else if ( reference instanceof PersistentCollection ) {
 			final boolean isInitialized = ( (PersistentCollection) reference ).wasInitialized();
 			return isInitialized ? LoadState.LOADED : LoadState.NOT_LOADED;
@@ -92,6 +98,11 @@ public final class PersistenceUtilHelper {
 		}
 	}
 
+	private static boolean isInitialized(PersistentAttributeInterceptable interceptable) {
+		LazyAttributeLoader interceptor = (LazyAttributeLoader) interceptable.$$_hibernate_getInterceptor();
+		return interceptor == null || interceptor.isUninitialized();
+	}
+
 	/**
 	 * Is the given attribute (by name) loaded?  This form must take care to not access the attribute (trigger
 	 * initialization).

hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/util/PersistenceUtilHelperTest.java

@@ -8,17 +8,20 @@ package org.hibernate.jpa.test.util;
 
 import javax.persistence.spi.LoadState;
 
-import org.junit.Test;
-
+import org.hibernate.engine.spi.PersistentAttributeInterceptable;
+import org.hibernate.engine.spi.PersistentAttributeInterceptor;
 import org.hibernate.jpa.internal.util.PersistenceUtilHelper;
 
+import org.junit.Test;
+
 import static org.junit.Assert.assertEquals;
+
 /**
  * Tests for HHH-5094 and HHH-5334
  *
  * @author Hardy Ferentschik
  */
-public class PersistenceUtilHelperTest{
+public class PersistenceUtilHelperTest {
 	private final PersistenceUtilHelper.MetadataCache cache = new PersistenceUtilHelper.MetadataCache();
 
 	public static class FieldAccessBean extends FieldAccessBeanBase {
@@ -93,8 +96,27 @@ public class PersistenceUtilHelperTest{
 	public void testIsLoadedWithReferencePrivateMethod() {
 		assertEquals(
 				LoadState.UNKNOWN,
-				PersistenceUtilHelper.isLoadedWithReference(
-						new MethodAccessBean(), "privateAccessPropertyValue", cache
+				PersistenceUtilHelper.isLoadedWithReference( new MethodAccessBean(), "privateAccessPropertyValue", cache )
+		);
+	}
+
+	@Test
+	public void testIsLoadedWithNullInterceptor() {
+		assertEquals(
+				LoadState.LOADED,
+				PersistenceUtilHelper.isLoaded(
+						new PersistentAttributeInterceptable() {
+
+							@Override
+							public PersistentAttributeInterceptor $$_hibernate_getInterceptor() {
+								return null;
+							}
+
+							@Override
+							public void $$_hibernate_setInterceptor(PersistentAttributeInterceptor interceptor) {
+
+							}
+						}
 				)
 		);
 	}