FULL PRODUCT VERSION :
java version "1.7.0_55"
Java(TM) SE Runtime Environment (build 1.7.0_55-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.55-b03, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux phenom 3.2.0-59-generic #90-Ubuntu SMP Tue Jan 7 22:43:51 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

EXTRA RELEVANT SYSTEM CONFIGURATION :
Product Version: NetBeans IDE 8.0.1 (Build 201408251540)
Updates: Updates available to version NetBeans 8.0.1 Patch 1.1
Java: 1.7.0_55; Java HotSpot(TM) 64-Bit Server VM 24.55-b03
Runtime: Java(TM) SE Runtime Environment 1.7.0_55-b13
System: Linux version 3.2.0-59-generic running on amd64; UTF-8; en_US (nb)
User directory: /home/hartman/.netbeans/8.0.1
Cache directory: /home/hartman/.cache/netbeans/8.0.1

A DESCRIPTION OF THE PROBLEM :
Unable to correctly render simple geometric shapes and lines when the Graphics2D setColor() method receives a subclass of Color as its parameter.

This appears to have been reported in an Apple forum in 2005: http://lists.apple.com/archives/java-dev/2005/Jan/msg00499.html


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See example code.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Comment and uncomment lines 20 & 21.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.Ellipse2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

class MyPanel extends JPanel
{
  private static final double radius = 80.0;
  
  private void doDrawing(Graphics g)
  {
    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    
    MyColor color = new MyColor(Color.BLUE);
// Color color = Color.BLUE;
    g2d.setColor(color);
    Shape circle = new Ellipse2D.Double(160 - radius, 120 - radius, 2.0 * radius, 2.0 * radius);
    g2d.draw(circle);
  }

  @Override
  public void paintComponent(Graphics g)
  {
    super.paintComponent(g);
    doDrawing(g);
  }
}

public class ColorSubclassDemo extends JFrame
{
  public static final int width = 320;
  public static final int height = 240;
  
  public ColorSubclassDemo()
  {
    initUI();
  }

  private void initUI()
  {
    setTitle("Color Subclass Demo");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    add(new MyPanel());
    setSize(width, height);
    setLocationRelativeTo(null);
  }

  public static void main(String[] args)
  {
    SwingUtilities.invokeLater(new Runnable()
    {
      @Override
      public void run()
      {
        ColorSubclassDemo demo = new ColorSubclassDemo();
        demo.setVisible(true);
      }
    });
  }
}

class MyColor extends Color
{
  private boolean userDefined;

  public MyColor(Color color)
  {
    super(color.getRed(), color.getGreen(), color.getBlue(), color.getTransparency());
    userDefined = false;
  }
  
  public MyColor(Color color, boolean userDefined)
  {
    super(color.getRed(), color.getGreen(), color.getBlue(), color.getTransparency());
    this.userDefined = userDefined;
  }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Workaround: do not extend Color.