Add general purpose WriteCloneable interface

make/build.xml

@@ -674,6 +674,7 @@
         <include name="com/jogamp/gluegen/runtime/*.class" />
         <include name="com/jogamp/common/impl/*.class" />
         <include name="com/jogamp/common/jvm/*.class" />
+        <include name="com/jogamp/common/type/*.class" />
         <include name="com/jogamp/common/util/*.class" />
         <include name="com/jogamp/common/util/locks/*.class" />
         <include name="com/jogamp/common/nio/*.class" />

src/java/com/jogamp/common/type/WriteCloneable.java

@@ -0,0 +1,42 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.common.type;
+
+/**
+ * Extends a class with the ability to be cloned mutable.<br>
+ * If the implementing class is designed immutable,
+ * it hereby offers a mutable clone.
+ */
+public interface WriteCloneable {
+
+    /**
+     * Get a mutable clone from this instance.
+     */
+    Object cloneMutable();
+}