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diff --git a/src/javax/media/j3d/SourceCodeShaderRetained.java b/src/javax/media/j3d/SourceCodeShaderRetained.java
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+/*
+ * Copyright 2005-2008 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package javax.media.j3d;
+
+/**
+ * The SourceCodeShaderRetained object is a shader that is defined using
+ * text-based source code. It is used to define the source code for
+ * both vertex and fragment shaders. The currently supported shading
+ * languages are Cg and GLSL.
+ */
+
+class SourceCodeShaderRetained extends ShaderRetained {
+
+    private String shaderSource = null;
+
+    /**
+     * Constructs a new shader retained object of the specified shading
+     * language and shader type from the specified source string.
+     */
+
+    SourceCodeShaderRetained() {
+    }
+
+    // This method is similar to setShaderSource().
+    // To conform to j3d frame in retained creation, we will stick with method
+    // with init name.
+    final void initShaderSource(String shaderSource) {
+	this.shaderSource = shaderSource;
+    }
+
+    final void set(int shadingLanguage, int shaderType, String shaderSource) {
+	this.shadingLanguage = shadingLanguage;
+	this.shaderType = shaderType;
+	this.shaderSource = shaderSource;
+    }
+
+    /**
+     * Retrieves the shader source string from this shader object.
+     *
+     * @return the shader source string.
+     */
+    final String getShaderSource() {
+	return shaderSource;
+    }
+
+    final void setShaderSource(String shaderSource) {
+	this.shaderSource = shaderSource;
+    }
+
+    @Override
+    synchronized void createMirrorObject() {
+	// System.err.println("SourceCodeShaderRetained : createMirrorObject");
+
+	if (mirror == null) {
+	    SourceCodeShaderRetained  mirrorSCS = new SourceCodeShaderRetained();
+	    mirror = mirrorSCS;
+	}
+
+	initMirrorObject();
+    }
+
+    /**
+     * Initializes a mirror object.
+     */
+    @Override
+    synchronized void initMirrorObject() {
+	mirror.source = source;
+
+	((SourceCodeShaderRetained) mirror).set(shadingLanguage, shaderType, shaderSource);
+	((SourceCodeShaderRetained) mirror).shaderData = null;
+    }
+
+    @Override
+    synchronized void updateMirrorObject(int component, Object value) {
+	System.err.println("SourceCodeShader.updateMirrorObject not implemented yet!");
+    }
+
+}