Add null args exception handling

Change-Id: If7ff462fbdb25fc5535386a53277fce751489641
Signed-off-by: Kyungwook Tak <k.tak@samsung.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/Tizen.Security.SecureRepository/Tizen.Security.SecureRepository/Certificate.cs b/Tizen.Security.SecureRepository/Tizen.Security.SecureRepository/Certificate.cs
index 5ffbe0b..d3cd784 100644
--- a/Tizen.Security.SecureRepository/Tizen.Security.SecureRepository/Certificate.cs
+++ b/Tizen.Security.SecureRepository/Tizen.Security.SecureRepository/Certificate.cs
@@ -30,12 +30,18 @@ namespace Tizen.Security.SecureRepository
         /// </summary>
         /// <param name="filePath">The path of certificate file to be loaded.</param>
         /// <returns>Loaded certificate class instance.</returns>
+        /// <exception cref="ArgumentNullException">
+        /// filePath should not be null
+        /// </exception>
         /// <exception cref="InvalidOperationException">
         /// Invalid certificate file format. Provided file path does not exist or
         /// cannot be accessed.
         /// </exception>
         static public Certificate Load(string filePath)
         {
+            if (filePath == null)
+                throw new ArgumentNullException("filepath should not be null");
+
             IntPtr ptr = IntPtr.Zero;
 
             Interop.CheckNThrowException(