Paint not being called

[Joel McNary]

I've got a custom component that I'm trying to draw on the screen. However, my paint()/painComponent() method is not being called. My component inherits from JPanel and overrides paintComponent(Graphics g) (although it has also overridden paint(Graphics g) at various points in its history as I've tried to make this thing work.)
I place this JPanel in another JPanel and that in a JFrame and show the JFrame and .... nothing
below is my current draft code, along with a lot of stuff commented out that I've tried and it hasn't worked. Any suggestions?

    public void showEntities(Object sender){
        DataViewer aModuleViewer = this.getModuleViewer();
        Module aModule = (Module)aModuleViewer.getCurrentDataElement();
        JPanel aDiagramPanel = this.getDiagramPanel();
        JFrame aFrame = this.getParentFrame(aDiagramPanel);
        
        //        JFrame newFrame = new JFrame();
        //       newFrame.getContentPane().setLayout(null);
        int count = aModule.getLogicalEntityList().size();
        for(int index = 0; index < count; index++){
            //       Button button5 = new Button();
            //       button5.setTargetActionMethod("buildWebAppEnvironment");
            //       button5.setTargetObject(this);
            //       button5.setText("Build WebApp Environment");
            
            LogicalEntity anEntity = (LogicalEntity)aModule.getLogicalEntityList().get(index);
            System.out.println("Adding " + anEntity.getEntityName());
            ERDEntity anERDEntity = new ERDEntity(anEntity);
            anERDEntity.doResize();
            anERDEntity.setBackground(java.awt.Color.white);
            aDiagramPanel.add(anERDEntity);
            //           anERDEntity.setVisible(true);
            //           anERDEntity.invalidate();
            //            anERDEntity.addNotify();
            anERDEntity.setLocation(50,50);
            aDiagramPanel.repaint();
            anERDEntity.setVisible(true);
        }
        
        //               newFrame.setVisible(true);
        
        aFrame.setVisible(true);
        //        aDiagramPanel.setVisible(true);
        //        aDiagramPanel.invalidate();
        //        aDiagramPanel.doLayout();
        //        aDiagramPanel.repaint();
        System.out.println("aDiagramPanel Size is " 
            + aDiagramPanel.getSize().height + ", " 
            + aDiagramPanel.getSize().width);
        System.out.println("aDiagramPanel Location is " 
            + aDiagramPanel.getLocation().x + ", " 
            + aDiagramPanel.getLocation().y);
        System.out.println("aDiagramPanel Num Elements " 
            + aDiagramPanel.getComponentCount());
//        for(int index = 0; index < aDiagramPanel.getComponentCount(); index++){
//            java.awt.Component aComponent = aDiagramPanel.getComponent(index);
//            aComponent.repaint();
//        }
    }

    private JFrame getParentFrame(JPanel aPanel){
        if(parentFrame == null){
            parentFrame = new JFrame();
            java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
            //parentFrame.setSize(new java.awt.Dimension(screenSize.width, screenSize.height));
            parentFrame.setSize(600,600);
            parentFrame.setLocation(0, 0);
            parentFrame.getContentPane().setLayout(null);
            //parentFrame.setContentPane(new javax.swing.JDesktopPane());
            //parentFrame.addWindowListener(this);
            parentFrame.getContentPane().add(aPanel);
            aPanel.setSize(300,300);
            aPanel.setBackground(java.awt.Color.red);
            
            Button button5 = new Button();
            button5.setTargetActionMethod("buildWebAppEnvironment");
            button5.setTargetObject(this);
            button5.setText("Build WebApp Environment");
            parentFrame.getContentPane().add(button5);
            button5.setBounds(10, 400, 160, 25);
            
            
            //            parentFrame.getContentPane().add(aPanel);
        }
        
        return parentFrame;
    }

    private JPanel getDiagramPanel(){
        if(diagramPanel == null){
            diagramPanel = new JPanel();
            diagramPanel.setLayout(null);
        }
        else{
            diagramPanel.removeAll();
        }
        return diagramPanel;
    }

[ March 16, 2004: Message edited by: Joel McNary ]

[Nathan Pruett]

Where's the code for the component that overrides paint() and paintComponent()?

If you override paint() and don't call super.paint() inside it, then paintComponent() will never get called.