--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/awt/TracedEventQueue.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,91 @@
+/*
+ * Copyright 1997 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.
+ */
+
+/**
+ * An EventQueue subclass which adds selective tracing of events as they
+ * are posted to an EventQueue.  Tracing is globally enabled and disabled
+ * by the AWT.TraceEventPosting property in awt.properties.  <P>
+ *
+ * The optional AWT.NoTraceIDs property defines a list of AWTEvent IDs
+ * which should not be traced, such as MouseEvent.MOUSE_MOVED or PaintEvents.
+ * This list is declared by specifying the decimal value of each event's ID,
+ * separated by commas.
+ *
+ * @author  Thomas Ball
+ */
+
+package sun.awt;
+
+import java.awt.EventQueue;
+import java.awt.AWTEvent;
+import java.awt.Toolkit;
+import java.util.StringTokenizer;
+
+public class TracedEventQueue extends EventQueue {
+
+    // Determines whether any event tracing is enabled.
+    static boolean trace = false;
+
+    // The list of event IDs to ignore when tracing.
+    static int suppressedIDs[] = null;
+
+    static {
+        String s = Toolkit.getProperty("AWT.IgnoreEventIDs", "");
+        if (s.length() > 0) {
+            StringTokenizer st = new StringTokenizer(s, ",");
+            int nIDs = st.countTokens();
+            suppressedIDs = new int[nIDs];
+            for (int i = 0; i < nIDs; i++) {
+                String idString = st.nextToken();
+                try {
+                    suppressedIDs[i] = Integer.parseInt(idString);
+                } catch (NumberFormatException e) {
+                    System.err.println("Bad ID listed in AWT.IgnoreEventIDs " +
+                                       "in awt.properties: \"" +
+                                       idString + "\" -- skipped");
+                    suppressedIDs[i] = 0;
+                }
+            }
+        } else {
+            suppressedIDs = new int[0];
+        }
+    }
+
+    public void postEvent(AWTEvent theEvent) {
+        boolean printEvent = true;
+        int id = theEvent.getID();
+        for (int i = 0; i < suppressedIDs.length; i++) {
+            if (id == suppressedIDs[i]) {
+                printEvent = false;
+                break;
+            }
+        }
+        if (printEvent) {
+            System.out.println(Thread.currentThread().getName() +
+                               ": " + theEvent);
+        }
+        super.postEvent(theEvent);
+    }
+}