Updated IllegalArgumentException to NullPointerException for Null Values in Require Class (#11162)

* Update Require.java

Update IllegealStateException to NullPointerException as the exception misleads in debugging.

* Update Require.java

* Update Require.java

* Update Require.java

Co-authored-by: Diego Molina <[email protected]>

Author: vinoth959

java/src/org/openqa/selenium/internal/Require.java

@@ -138,6 +138,9 @@ public static int positive(String argName, Integer number, String message) {
   }
 
   public static double positive(String argName, Double number, String message) {
+    if (number == null) {
+        throw new IllegalArgumentException(String.format(MUST_BE_SET, argName));
+    }
     if (number <= 0) {
       if (message == null) {
         throw new IllegalArgumentException(String.format(MUST_BE_POSITIVE, argName));