diff -r 45184b2f9697 -r 9eb74b221cff vm/src/test/java/org/apidesign/vm4brwsr/StaticMethodTest.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/StaticMethodTest.java	Thu Nov 08 18:34:12 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/StaticMethodTest.java	Sat Nov 17 17:43:15 2012 +0100
@@ -275,15 +275,17 @@
             return (Invocable)js;
         } catch (Exception ex) {
             if (sb.length() > 2000) {
-                File f = File.createTempFile("execution", ".js");
-                FileWriter w = new FileWriter(f);
-                w.append(sb);
-                w.close();
-                sb.setLength(0);
-                sb.append(f.getPath());
+                dumpJS(sb);
             }
             fail("Could not compile:\n" + sb, ex);
             return null;
         }
     }
+    static String dumpJS(CharSequence sb) throws IOException {
+        File f = File.createTempFile("execution", ".js");
+        FileWriter w = new FileWriter(f);
+        w.append(sb);
+        w.close();
+        return f.getPath();
+    }
 }