Deal gracefully with having no component classes or actions.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1817 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/cast/bundle/BundledComponentRepository.java

@@ -1,5 +1,5 @@
 //
-// $Id: BundledComponentRepository.java,v 1.18 2002/09/17 19:11:13 mdb Exp $
+// $Id: BundledComponentRepository.java,v 1.19 2002/10/18 23:47:27 shaper Exp $
 
 package com.threerings.cast.bundle;
 
@@ -128,6 +128,15 @@ public class BundledComponentRepository
             throw new NestableIOException(
                 "Internal error unserializing metadata", cnfe);
         }
+
+        // if we failed to load our classes or actions, create empty
+        // hashtables so that we can safely enumerate our emptiness
+        if (_actions == null) {
+            _actions = new HashMap();
+        }
+        if (_classes == null) {
+            _classes = new HashMap();
+        }
     }
 
     // documentation inherited