Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Create/WaveConditionsOutputCreateExtensions.cs
===================================================================
diff -u -r52207b1b9ba8ad1c1743bbf31d58de7bb46192b8 -r7ae9100ff4e61169edcefaeb01b72d492431742f
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Create/WaveConditionsOutputCreateExtensions.cs	(.../WaveConditionsOutputCreateExtensions.cs)	(revision 52207b1b9ba8ad1c1743bbf31d58de7bb46192b8)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Create/WaveConditionsOutputCreateExtensions.cs	(.../WaveConditionsOutputCreateExtensions.cs)	(revision 7ae9100ff4e61169edcefaeb01b72d492431742f)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System;
 using Application.Ringtoets.Storage.DbContext;
 using Ringtoets.Revetment.Data;
 
@@ -38,16 +37,10 @@
         /// <param name="output">The calculation output for grass cover erosion outwards failure mechanism to 
         /// create a database entity for.</param>
         /// <param name="order">The position of <paramref name="output"/> in the list of all outputs.</param>
-        /// <param name="registry">The object keeping track of create operations.</param>
         /// <returns>A new <see cref="GrassCoverErosionOutwardsWaveConditionsOutputEntity"/>.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="registry"/> is <c>null</c>.</exception>
         internal static GrassCoverErosionOutwardsWaveConditionsOutputEntity CreateGrassCoverErosionOutwardsWaveConditionsOutputEntity(
-            this WaveConditionsOutput output, int order, PersistenceRegistry registry)
+            this WaveConditionsOutput output, int order)
         {
-            if (registry == null)
-            {
-                throw new ArgumentNullException("registry");
-            }
             var entity = new GrassCoverErosionOutwardsWaveConditionsOutputEntity
             {
                 Order = order,
@@ -67,16 +60,10 @@
         /// create a database entity for.</param>
         /// <param name="type">The type of the <see cref="WaveConditionsOutput"/>.</param>
         /// <param name="order">The position of <paramref name="output"/> in the list of all outputs.</param>
-        /// <param name="registry">The object keeping track of create operations.</param>
         /// <returns>A new <see cref="StabilityStoneCoverWaveConditionsOutputEntity"/>.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="registry"/> is <c>null</c>.</exception>
         internal static StabilityStoneCoverWaveConditionsOutputEntity CreateStabilityStoneCoverWaveConditionsOutputEntity(
-            this WaveConditionsOutput output, WaveConditionsOutputType type, int order, PersistenceRegistry registry)
+            this WaveConditionsOutput output, WaveConditionsOutputType type, int order)
         {
-            if (registry == null)
-            {
-                throw new ArgumentNullException("registry");
-            }
             var entity = new StabilityStoneCoverWaveConditionsOutputEntity
             {
                 Order = order,
@@ -96,16 +83,10 @@
         /// <param name="output">The calculation output for wave impact asphalt cover mechanism to 
         /// create a database entity for.</param>
         /// <param name="order">The position of <paramref name="output"/> in the list of all outputs.</param>
-        /// <param name="registry">The object keeping track of create operations.</param>
         /// <returns>A new <see cref="WaveImpactAsphaltCoverWaveConditionsOutputEntity"/>.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="registry"/> is <c>null</c>.</exception>
         internal static WaveImpactAsphaltCoverWaveConditionsOutputEntity CreateWaveImpactAsphaltCoverWaveConditionsOutputEntity(
-            this WaveConditionsOutput output, int order, PersistenceRegistry registry)
+            this WaveConditionsOutput output, int order)
         {
-            if (registry == null)
-            {
-                throw new ArgumentNullException("registry");
-            }
             var entity = new WaveImpactAsphaltCoverWaveConditionsOutputEntity
             {
                 Order = order,