--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/solaris/classes/sun/awt/X11/XAtomList.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2003-2005 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 sun.awt.X11;
+
+import java.util.*;
+
+/**
+ * Helper class to ease the work with the lists of atoms.
+ */
+class XAtomList {
+    Set<XAtom> atoms = new HashSet<XAtom>();
+
+    /**
+     * Creates empty list.
+     */
+    public XAtomList() {
+    }
+
+    /**
+     * Creates instance of XAtomList and initializes it with
+     * the contents pointer by <code>data</code>.
+     * Uses default display to initialize atoms.
+     */
+    public XAtomList(long data, int count) {
+        init(data, count);
+    }
+    private void init(long data, int count) {
+        for (int i = 0; i < count; i++) {
+            add(new XAtom(XToolkit.getDisplay(), XAtom.getAtom(data+count*XAtom.getAtomSize())));
+        }
+    }
+
+    /**
+     * Creates instance of XAtomList and initializes it with
+     * the arrays of atoms. Array can contain null atoms.
+     */
+    public XAtomList(XAtom[] atoms) {
+        init(atoms);
+    }
+    private void init(XAtom[] atoms) {
+        for (int i = 0; i < atoms.length; i++) {
+            add(atoms[i]);
+        }
+    }
+
+    /**
+     * Returns contents of the list as array of atoms.
+     */
+    public XAtom[] getAtoms() {
+        XAtom[] res = new XAtom[size()];
+        Iterator<XAtom> iter = atoms.iterator();
+        int i = 0;
+        while (iter.hasNext()) {
+            res[i++] = iter.next();
+        }
+        return res;
+    }
+
+    /**
+     * Returns contents of the list as pointer to native data
+     * The size of the native data is size of the list multiplied by
+     * size of the Atom type on the platform. Caller is responsible for
+     * freeing the data by Unsafe.freeMemory when it is no longer needed.
+     */
+    public long getAtomsData() {
+        return XAtom.toData(getAtoms());
+    }
+
+    /**
+     * Returns true if this list contains the atom <code>atom</code>
+     */
+    public boolean contains(XAtom atom) {
+        return atoms.contains(atom);
+    }
+
+    /**
+     * Add atom to the list. Does nothing if list already contains this atom.
+     */
+    public void add(XAtom atom) {
+        atoms.add(atom);
+    }
+
+    /**
+     * Removes atom from the list. Does nothing if arrays doesn't conaint this atom.
+     */
+    public void remove(XAtom atom) {
+        atoms.remove(atom);
+    }
+
+
+    /**
+     * Returns size of the list
+     */
+    public int size() {
+        return atoms.size();
+    }
+
+    /**
+     * Returns a subset of a list which is intersection of this set and set build by mapping <code>mask</code> in
+     * <code>mapping</code>.
+     */
+    public XAtomList subset(int mask, Map<Integer, XAtom> mapping) {
+        XAtomList res = new XAtomList();
+        Iterator<Integer> iter = mapping.keySet().iterator();
+        while (iter.hasNext()) {
+            Integer bits = iter.next();
+            if ( (mask & bits.intValue()) == bits.intValue() ) {
+                XAtom atom = mapping.get(bits);
+                if (contains(atom)) {
+                    res.add(atom);
+                }
+            }
+        }
+        return res;
+    }
+
+    /**
+     * Returns iterator for items.
+     */
+    public Iterator<XAtom> iterator() {
+        return atoms.iterator();
+    }
+
+    /**
+     * Merges without duplicates all the atoms from another list
+     */
+    public void addAll(XAtomList atoms) {
+        Iterator<XAtom> iter = atoms.iterator();
+        while(iter.hasNext()) {
+            add(iter.next());
+        }
+    }
+
+    public String toString() {
+        StringBuffer buf = new StringBuffer();
+        buf.append("[");
+        Iterator iter = atoms.iterator();
+        while (iter.hasNext()) {
+            buf.append(iter.next().toString());
+            if (iter.hasNext()) {
+                buf.append(", ");
+            }
+        }
+        buf.append("]");
+        return buf.toString();
+    }
+}