Index: DamEngine/trunk/src/Deltares.DamEngine.Data/General/Specifications/NotSpecification.cs
===================================================================
diff -u -r4000 -r4052
--- DamEngine/trunk/src/Deltares.DamEngine.Data/General/Specifications/NotSpecification.cs	(.../NotSpecification.cs)	(revision 4000)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/General/Specifications/NotSpecification.cs	(.../NotSpecification.cs)	(revision 4052)
@@ -19,33 +19,32 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-namespace Deltares.DamEngine.Data.General.Specifications
+namespace Deltares.DamEngine.Data.General.Specifications;
+
+public class NotSpecification<TCandidate> : CompositeSpecification<TCandidate>
 {
-    public class NotSpecification<TCandidate> : CompositeSpecification<TCandidate>
+    private readonly ISpecification<TCandidate> specification;
+
+    public NotSpecification(ISpecification<TCandidate> specification)
     {
-        private readonly ISpecification<TCandidate> specification;
+        this.specification = specification;
+    }
 
-        public NotSpecification(ISpecification<TCandidate> specification)
+    /// <summary>
+    /// Determines whether the candidate satisfies the specification.
+    /// </summary>
+    /// <param name="candidate">The candidate to test.</param>
+    /// <returns>
+    ///   <c>true</c> if the candidate satisfies the specification otherwise, <c>false</c>.
+    /// </returns>
+    public override bool IsSatisfiedBy(TCandidate candidate)
+    {
+        bool satisfied = !(specification.IsSatisfiedBy(candidate));
+        if (!satisfied)
         {
-            this.specification = specification;
+            Description = specification.Description;
         }
 
-        /// <summary>
-        /// Determines whether the candidate satisfies the specification.
-        /// </summary>
-        /// <param name="candidate">The candidate to test.</param>
-        /// <returns>
-        ///   <c>true</c> if the candidate satisfies the specification otherwise, <c>false</c>.
-        /// </returns>
-        public override bool IsSatisfiedBy(TCandidate candidate)
-        {
-            bool satisfied = !(specification.IsSatisfiedBy(candidate));
-            if (!satisfied)
-            {
-                Description = specification.Description;
-            }
-
-            return satisfied;
-        }
+        return satisfied;
     }
 }
\ No newline at end of file