diff -r 7665471a56c1 -r 2c0e2a58a4f2 rt/aot/src/main/java/org/apidesign/bck2brwsr/aot/Bck2BrwsrJars.java
--- a/rt/aot/src/main/java/org/apidesign/bck2brwsr/aot/Bck2BrwsrJars.java	Tue May 27 12:25:41 2014 +0200
+++ b/rt/aot/src/main/java/org/apidesign/bck2brwsr/aot/Bck2BrwsrJars.java	Mon Jun 09 19:16:34 2014 +0200
@@ -82,7 +82,11 @@
                 return is == null ? super.get(resource) : is;
             }
         }
-        return Bck2Brwsr.newCompiler()
+        if (c == null) {
+            c = Bck2Brwsr.newCompiler();
+        }
+        
+        return c
             .library(classpath)
             .addClasses(classes.toArray(new String[classes.size()]))
             .addExported(exported.toArray(new String[exported.size()]))