HHH-17257 ElementCollection is missing elements after update if embeddable type has primitive columns marked as nullable

Author: dreab8

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EmbeddableMappingTypeImpl.java

@@ -385,15 +385,15 @@ private boolean finishInitialization(
 					length = column.getLength();
 					precision = column.getPrecision();
 					scale = column.getScale();
-					nullable = column.isNullable();
+					nullable = bootPropertyDescriptor.isOptional() && column.isNullable() ;
 					selectablePath = basicValue.createSelectablePath( column.getQuotedName( dialect ) );
 				}
 				else {
 					columnDefinition = null;
 					length = null;
 					precision = null;
 					scale = null;
-					nullable = true;
+					nullable = bootPropertyDescriptor.isOptional();
 					selectablePath = basicValue.createSelectablePath( bootPropertyDescriptor.getName() );
 				}
 				attributeMapping = MappingModelCreationHelper.buildBasicAttributeMapping(