🚀 go-pugleaf

New job.  I'm using some inherited code under JBuilder 2.01 ond JDK 1.2.1.
(Although I got the same results from JDK 1.2.)  The class BaseTabPanel
shows as a red bean in the designer but the program compiles and runs as
expected.  What's happening?
John Hines

//FYI
//H2. Visual Design Tools and JavaBeans
//-------------------------------------
//* If you see one of your components as a red box with its class name at
//the top, JBuilder has not been able to create an instance of that
component for
//the designer.  This is called a "Red Bean".  Some reasons you might see a
Red
//Bean are:
//   1) That class has no default (parameterless) constructor
//   2) That class threw exceptions on every constructor JBuilder tried
//   3) That class is the 'this' object and it extends an abstract class
//Don't see how any of these apply

package com.sequel.care.gui;
import java.awt.*;
import javax.swing.JPanel;
public class BaseTabPanel extends JPanel{
      BaseModel model;
      BaseTabPanel( )     {   }
      BaseTabPanel( BaseModel model )      {  this.model = model; }
      String getTitle() { return "unknown"; }
}
public class BaseModel
{
      Server theServer;
      void retrieveData() { }
      void saveData() { }
      public BaseModel()  { }
      public BaseModel(Server server)   { theServer = server; }
}
public class Server
{
      int index;
      Server()    {     index = 0;  }
      void reset()  {    index = 0;  }
      BaseTabPanel getNextScreen()      {
            BaseTabPanel next = null;
            switch (index)            {
                  case 0:      next = new NewCallPanel(new BaseModel(this));
                                    break;
                  case 1:    ...
              default:
            }
            index++;
            return next;
      }
}