--- a/src/share/classes/javax/swing/plaf/metal/MetalIconFactory.java	Mon Dec 14 18:12:00 2020 +0100
+++ b/src/share/classes/javax/swing/plaf/metal/MetalIconFactory.java	Wed May 21 14:13:17 2014 +0400
@@ -1250,8 +1250,10 @@
             g.translate(x, y);
 
             // fill interior
-            g.setColor(interiorColor);
-            g.fillRect(2,2, 9,9);
+            if (c.isOpaque()) {
+                g.setColor(interiorColor);
+                g.fillRect(2, 2, 9, 9);
+            }
 
             // draw Dark Circle (start at top, go clockwise)
             g.setColor(darkCircle);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/javax/swing/JRadioButton/8041561/bug8041561.java	Wed May 21 14:13:17 2014 +0400
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.AWTException;
+import java.awt.Color;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.JRadioButton;
+import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
+import javax.swing.UnsupportedLookAndFeelException;
+import javax.swing.plaf.metal.DefaultMetalTheme;
+import javax.swing.plaf.metal.MetalLookAndFeel;
+import sun.awt.SunToolkit;
+
+/**
+ * @test
+ * @bug 8041561
+ * @author Alexander Scherbatiy
+ * @summary Inconsistent opacity behaviour between JCheckBox and JRadioButton
+ * @run main bug8041561
+ */
+public class bug8041561 {
+
+    private static JRadioButton radioButton;
+
+    public static void main(String[] args) throws Exception {
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                try {
+                    MetalLookAndFeel.setCurrentTheme(new DefaultMetalTheme());
+                    UIManager.setLookAndFeel(new MetalLookAndFeel());
+                    createAndShowGUI();
+                } catch (UnsupportedLookAndFeelException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        });
+
+        ((SunToolkit) Toolkit.getDefaultToolkit()).realSync();
+        Thread.sleep(500);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                try {
+                    Point point = radioButton.getLocationOnScreen();
+                    int x = (int) point.getX() + radioButton.getWidth() / 2;
+                    int y = (int) point.getY() + radioButton.getHeight() / 2;
+
+                    Robot robot = new Robot();
+                    Color color = robot.getPixelColor(x, y);
+                    if (!Color.BLUE.equals(color)) {
+                        throw new RuntimeException("JRadioButton is opaque");
+                    }
+                } catch (AWTException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        });
+
+    }
+
+    private static void createAndShowGUI() {
+        JFrame frame = new JFrame();
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setBackground(Color.BLUE);
+        radioButton = new JRadioButton();
+        radioButton.setOpaque(false);
+        JPanel panel = new JPanel();
+        panel.setBackground(Color.BLUE);
+        panel.add(radioButton);
+        frame.getContentPane().add(panel);
+        frame.pack();
+        frame.setVisible(true);
+    }
+}