Fix OOM exception thrown in case insensitive replace for an empty string (dotnet...

Commit migrated from https://github.com/dotnet/coreclr/commit/08c80c57b08647be4b3d050549f48bbe265ad90e

diff --git a/src/coreclr/src/mscorlib/src/System/String.Manipulation.cs b/src/coreclr/src/mscorlib/src/System/String.Manipulation.cs
index 33e341c..2b1f5a6 100644 (file)
--- a/src/coreclr/src/mscorlib/src/System/String.Manipulation.cs
+++ b/src/coreclr/src/mscorlib/src/System/String.Manipulation.cs
@@ -1022,6 +1022,8 @@ namespace System
         {
             if (oldValue == null)
                 throw new ArgumentNullException(nameof(oldValue));
+            if (oldValue.Length == 0)
+                throw new ArgumentException(SR.Argument_StringZeroLength, nameof(oldValue));
 
             // If they asked to replace oldValue with a null, replace all occurences
             // with the empty string.