// Add main() method to LongFactorial
accessFlags.clear();
accessFlags.add("public");
accessFlags.add("static");
e.addMethod(accessFlags, "main", "([Ljava/lang/String;)V", null, true);
e.addExceptionHandler("tryStart", "tryEnd", "catch",
"java/lang/NumberFormatException");
e.addLabel("tryStart");
e.addReferenceInstruction(NEW, "LongFactorial");
e.addNoArgInstruction(DUP);