diff --git a/hibernate-core/src/main/java/org/hibernate/metamodel/source/annotations/JandexHelper.java b/hibernate-core/src/main/java/org/hibernate/metamodel/source/annotations/JandexHelper.java
index cf48b624d3..1de6231813 100644
--- a/hibernate-core/src/main/java/org/hibernate/metamodel/source/annotations/JandexHelper.java
+++ b/hibernate-core/src/main/java/org/hibernate/metamodel/source/annotations/JandexHelper.java
@@ -123,6 +123,45 @@ public class JandexHelper {
 			);
 		}
 	}
+	
+	// THIS IS FOR 4.3.x AND SHOULD BE CONSIDERED TEMPORARY.  HHH-8118 corrected CL use in JandexHelper by adding
+	// CLS as method arguments.  But that was done in the metamodel branch only before I knew that master added a few
+	// uses.  HHH-8316 needs it for 4.3.  DO NOT LET THIS GET MERGED INTO METAMODEL!
+	public static <T> T getValue(AnnotationInstance annotation, String element, Class<T> type,
+			ClassLoaderService classLoaderService) throws AssertionFailure {
+		if ( Class.class.equals( type ) ) {
+			throw new AssertionFailure(
+					"Annotation parameters of type Class should be retrieved as strings (fully qualified class names)"
+			);
+		}
+
+		if ( type.isPrimitive() ) {
+			type = PrimitiveWrapperHelper.getDescriptorByPrimitiveType( type ).getWrapperClass();
+		}
+
+		// try getting the untyped value from Jandex
+		AnnotationValue annotationValue = annotation.value( element );
+
+		try {
+			if ( annotationValue != null ) {
+				return explicitAnnotationParameter( annotationValue, type );
+			}
+			else {
+				return defaultAnnotationParameter( getDefaultValue( annotation, element, classLoaderService ), type );
+			}
+		}
+		catch ( ClassCastException e ) {
+			throw new AssertionFailure(
+					String.format(
+							"the annotation property %s of annotation %s is not of type %s",
+							element,
+							annotation.name(),
+							type.getName()
+					),
+					e
+			);
+		}
+	}
 
 	/**
 	 * Retrieves a jandex annotation element value, converting it to the supplied enumerated type.  If the value is
@@ -332,6 +371,39 @@ public class JandexHelper {
 		}
 	}
 
+	// THIS IS FOR 4.3.x AND SHOULD BE CONSIDERED TEMPORARY.  HHH-8118 corrected CL use in JandexHelper by adding
+	// CLS as method arguments.  But that was done in the metamodel branch only before I knew that master added a few
+	// uses.  HHH-8316 needs it for 4.3.  DO NOT LET THIS GET MERGED INTO METAMODEL!
+	private static Object getDefaultValue(AnnotationInstance annotation, String element,
+			ClassLoaderService classLoaderService) {
+		String name = annotation.name().toString();
+		String fqElement = name + '.' + element;
+		Object val = DEFAULT_VALUES_BY_ELEMENT.get( fqElement );
+		if ( val != null ) {
+			return val;
+		}
+		try {
+			val = classLoaderService.classForName( name ).getMethod( element ).getDefaultValue();
+			if ( val != null ) {
+				// Annotation parameters of type Class are handled using Strings
+				if ( val instanceof Class ) {
+					val = ( ( Class ) val ).getName();
+				}
+			}
+			DEFAULT_VALUES_BY_ELEMENT.put( fqElement, val );
+			return val;
+		}
+		catch ( RuntimeException error ) {
+			throw error;
+		}
+		catch ( Exception error ) {
+			throw new AssertionFailure(
+					String.format( "The annotation %s does not define a parameter '%s'", name, element ),
+					error
+			);
+		}
+	}
+
 	private static <T> T defaultAnnotationParameter(Object defaultValue, Class<T> type) {
 		Object returnValue = defaultValue;
 
diff --git a/hibernate-entitymanager/src/main/java/org/hibernate/jpa/boot/internal/EntityManagerFactoryBuilderImpl.java b/hibernate-entitymanager/src/main/java/org/hibernate/jpa/boot/internal/EntityManagerFactoryBuilderImpl.java
index eb3fe79eba..d2f297aee0 100644
--- a/hibernate-entitymanager/src/main/java/org/hibernate/jpa/boot/internal/EntityManagerFactoryBuilderImpl.java
+++ b/hibernate-entitymanager/src/main/java/org/hibernate/jpa/boot/internal/EntityManagerFactoryBuilderImpl.java
@@ -391,7 +391,8 @@ public class EntityManagerFactoryBuilderImpl implements EntityManagerFactoryBuil
 				metadataSources.converterDescriptors.add(
 						new MetadataSources.ConverterDescriptor(
 								className,
-								JandexHelper.getValue( converterAnnotation, "autoApply", boolean.class )
+								JandexHelper.getValue( converterAnnotation, "autoApply", boolean.class,
+										bootstrapServiceRegistry.getService( ClassLoaderService.class ) )
 						)
 				);
 			}