diff --git a/base/sourceTest/java/ch/systemsx/cisd/base/convert/NativeDataTests.java b/base/sourceTest/java/ch/systemsx/cisd/base/convert/NativeDataTests.java
index d4a68e28526d687b70fc237006103447690d2705..7307dd530700c708a511f68e0e24162146ee2245 100644
--- a/base/sourceTest/java/ch/systemsx/cisd/base/convert/NativeDataTests.java
+++ b/base/sourceTest/java/ch/systemsx/cisd/base/convert/NativeDataTests.java
@@ -421,6 +421,7 @@ public class NativeDataTests
     {
     }
 
+    @SuppressWarnings("null")
     public static void main(String[] args) throws Throwable
     {
         System.out.println(BuildAndEnvironmentInfo.INSTANCE);