util classes should be final with a private constructor

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgUtil.java

@@ -48,12 +48,20 @@ import java.io.File;
  *
  * @author Sebastian Sdorra
  */
-public class HgUtil
+public final class HgUtil
 {
 
   /** Field description */
   public static final String REVISION_TIP = "tip";
 
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   */
+  private HgUtil() {}
+
   //~--- get methods ----------------------------------------------------------
 
   /**