-Fixed regression serializing decimal value

Src/Newtonsoft.Json.Tests/Issues/Issue1561.cs

@@ -0,0 +1,59 @@
+#region License
+// Copyright (c) 2007 James Newton-King
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+#endregion
+
+using System;
+#if DNXCORE50
+using System.Reflection;
+using Xunit;
+using Test = Xunit.FactAttribute;
+using Assert = Newtonsoft.Json.Tests.XUnitAssert;
+#else
+using NUnit.Framework;
+#endif
+
+namespace Newtonsoft.Json.Tests.Issues
+{
+    [TestFixture]
+    public class Issue1561 : TestFixtureBase
+    {
+        [Test]
+        public void Test()
+        {
+            Data data = new Data
+            {
+                Value = 1.1m
+            };
+
+            string serialized = JsonConvert.SerializeObject(data);
+
+            Assert.AreEqual(@"{""Value"":1.1}", serialized);
+        }
+
+        public class Data
+        {
+            public decimal? Value { get; set; }
+        }
+    }
+}

Src/Newtonsoft.Json/JsonWriter.cs

@@ -1608,7 +1608,8 @@ namespace Newtonsoft.Json
 
                     case PrimitiveTypeCode.DecimalNullable:
                         writer.WriteValue((value == null) ? (decimal?)null : (decimal)value);
-                        break;
+                        return;
+
                     case PrimitiveTypeCode.Guid:
                         writer.WriteValue((Guid)value);
                         return;