diff -r 5f8cc8ad490e -r 4393b7db103b rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java
--- a/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java	Fri Jul 12 13:41:23 2013 +0200
+++ b/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java	Thu Oct 10 13:59:29 2013 +0200
@@ -70,6 +70,10 @@
      */
     @Parameter(defaultValue="NONE")
     private ObfuscationLevel obfuscation;
+    
+    /** Should classes from rt.jar be included? */
+    @Parameter(defaultValue = "false")
+    private boolean ignoreBootClassPath;
 
     @Override
     public void execute() throws MojoExecutionException {
@@ -94,7 +98,7 @@
             FileWriter w = new FileWriter(javascript);
             Bck2Brwsr.newCompiler().
                 obfuscation(obfuscation).
-                resources(url).
+                resources(url, ignoreBootClassPath).
                 addRootClasses(arr.toArray(new String[0])).
                 generate(w);
             w.close();