problem in java highlighting

Is this a bug in code, or do I need to adjust something in my highlighting 
rules?
I've never configured them for java (that I recall) so this is 
out-of-the-box.

look at the end of the file in one of the editor windows and the end of it 
will be highlighted
as if it were commented, but it isn't.

I'm using 11.0.0.116

CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED testcomments AS 
import java.sql.*;
import java.util.*;
import oracle.sql.*; 
import java.lang.*;
import java.io.*;
 
public class testcomments {

//here's a comment, it's ok

//********* here's another one, it's ok

//and yet another good one

   public static void getbanner() {
      try {

         //********* Use our current session, still good
         Connection conn    = 
DriverManager.getConnection("jdbc:default:connection:");
 
         //*********** Grab the banner text, still good
         Statement stmt = conn.createStatement(); 
         ResultSet rs = stmt.executeQuery("select * from v$version");

         //******  Print the results, yep, going strong
         String banner;
         while (rs.next()) { 
            banner   = rs.getString("BANNER"); 
            System.out.println(banner);
         }
      }catch (Exception e) { 
         //******** What could possibly go wrong?
         String message = e.getMessage(); 
         System.out.println(message); 
      }
   }
//******  this comment is messed up, the /* is parsed wrong

   public static void some_other_code() {
   }
// the first bad comment is looking for the */  closing tag
}