Reflection utilities (bugfix)

h2/src/main/org/h2/value/DataType.java

@@ -765,7 +765,7 @@ public class DataType {
      */
     public static int getTypeFromClass(Class < ? > x) {
         // TODO refactor: too many if/else in functions, can reduce!
-        if (x == null) {
+        if (x == null || Void.TYPE == x) {
             return Value.NULL;
         }
         if (x.isPrimitive()) {