try {
translator.translate(input,useTidy);
} catch (Exception ex) {
translator.errorMessage = ex.getMessage();
}
request.getSession().setAttribute("java", translator.isSuccess() ? translator.toJavaSource() : translator.errorMessage);
request.getSession().setAttribute("html", request.getParameter("html"));
}
if ("back".equals(handle)) {
request.getSession().setAttribute("java", null);
}