Update clients/src/main/java/org/apache/kafka/common/utils/Utils.java

Co-authored-by: refacto-visz[bot] <230139763+refacto-visz[bot]@users.noreply.github.com>

Author: visz11

clients/src/main/java/org/apache/kafka/common/utils/Utils.java

@@ -1703,9 +1703,12 @@ public interface ThrowingRunnable {
      * @param timeMs the time in millisecond
      * @return the converted nanosecond
      */
+    private static final long NANOS_PER_MILLISECOND = 1_000_000L;
+
     public static long msToNs(long timeMs) {
         try {
-            return Math.multiplyExact(1000 * 1000, timeMs);
+            return Math.multiplyExact(NANOS_PER_MILLISECOND, timeMs);
+        } catch (ArithmeticException e) {
         } catch (ArithmeticException e) {
             throw new IllegalArgumentException("Cannot convert " + timeMs + " millisecond to nanosecond due to arithmetic overflow", e);
         }