1 files changed, 29 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Threading/SemaphoreFullException.cs b/src/mscorlib/shared/System/Threading/SemaphoreFullException.cs
new file mode 100644
index 0000000000..19ac19d6e0
--- /dev/null
+++ b/src/mscorlib/shared/System/Threading/SemaphoreFullException.cs
@@ -0,0 +1,29 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.Serialization;
+
+namespace System.Threading
+{
+    [Serializable]
+    public class SemaphoreFullException : SystemException
+    {
+        public SemaphoreFullException() : base(SR.Threading_SemaphoreFullException)
+        {
+        }
+
+        public SemaphoreFullException(String message) : base(message)
+        {
+        }
+
+        public SemaphoreFullException(String message, Exception innerException) : base(message, innerException)
+        {
+        }
+
+        protected SemaphoreFullException(SerializationInfo info, StreamingContext context) : base(info, context)
+        {
+        }
+    }
+}