[Bug swing/24904] New: JSplitPanes show a magic Button when one of the components is null

[abalkiss at redhat dot com]

The testcase pasted below shows that showing a JSplitPane that was initialized
with one component being null magically makes a JButton with the label "left
button" appear as that component.  This does not happen with the JDK.  Perhaps
it needs to be hidden (ie, size of 0).


***TESTCASE***
import java.awt.*;
import javax.swing.*;

public class G3 extends JComponent 
{
  public void paintComponent( Graphics g ) {
    g.setColor( new Color( 0xe0, 0xe0, 0xf0 ));
    g.fillRect( 0, 0, 400, 400 );    
  }  

  public Dimension getPreferredSize() {
    return new Dimension(400,400);
    }

  public static void main( String args[] ) {
    JFrame frame = new JFrame( "layout tests" );
    G3 gc1 = new G3();
    JScrollPane sp1 = new JScrollPane( gc1 );
    JSplitPane splitPane = new 
      JSplitPane(JSplitPane.HORIZONTAL_SPLIT, false, null, sp1 );

    frame.getContentPane().add( "Center", splitPane );
    frame.pack();
    frame.show();
  }
}


-- 
           Summary: JSplitPanes show a magic Button when one of the
                    components is null
           Product: classpath
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: swing
        AssignedTo: abalkiss at redhat dot com
        ReportedBy: abalkiss at redhat dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24904