diff --git a/src/java/com/threerings/cast/bundle/tools/DumpComponentMap.java b/src/java/com/threerings/cast/bundle/tools/DumpComponentMap.java
new file mode 100644
index 000000000..0aeb8ee24
--- /dev/null
+++ b/src/java/com/threerings/cast/bundle/tools/DumpComponentMap.java
@@ -0,0 +1,46 @@
+//
+// $Id: DumpComponentMap.java,v 1.1 2002/04/11 01:34:09 mdb Exp $
+
+package com.threerings.cast.bundle.tools;
+
+import java.io.BufferedInputStream;
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import java.util.Iterator;
+
+import com.threerings.cast.bundle.tools.ComponentBundlerTask.HashMapIDBroker;
+
+/**
+ * Dumps the serialized component map generated by the component bundling
+ * task.
+ */
+public class DumpComponentMap
+{
+    public static void main (String[] args)
+    {
+        if (args.length < 1) {
+            System.err.println("Usage: DumpComponentMap mapfile");
+            System.exit(-1);
+        }
+
+        HashMapIDBroker broker = new HashMapIDBroker();
+        try {
+            FileInputStream fin = new FileInputStream(args[0]);
+            DataInputStream din =
+                new DataInputStream(new BufferedInputStream(fin));
+            broker.readFrom(din);
+
+            Iterator entries = broker.entrySet().iterator();
+            while (entries.hasNext()) {
+                System.out.println(entries.next());
+            }
+
+        } catch (Exception e) {
+            System.err.println("Error loading component ID map " +
+                               "[mapfile=" + args[0] + "]: " + e);
+        }
+    }
+}