diff -r d382dacfd73f -r 0e4945540961 rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java	Tue Feb 26 16:54:16 2013 +0100
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java	Sat Mar 09 16:09:35 2013 +0100
@@ -56,7 +56,7 @@
             throw new ClassNotFoundException(name);
         }
 //        beingDefined(loader, name);
-        StringBuilder out = new StringBuilder();
+        StringBuilder out = new StringBuilder(65535);
         out.append("var loader = arguments[0];\n");
         out.append("var vm = loader.vm;\n");
         int prelude = out.length();