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From "Marcos Hass W" <>
Subject .betwixt file ignored problem spotted ;-)
Date Tue, 09 May 2006 23:11:50 GMT
First of all thanks for all people that answered my previous posts ;-)

My application was not using the corresponding .betwixt because my code
defines a SecurityManager, let's try to show what happens ...

1) This is the bean that I'm using (

public class PersonBean {

    private String name;
    private int age;

    /** Need to allow bean to be created via reflection */
    public PersonBean() {}

    public PersonBean(String name, int age) { = name;
        this.age = age;

    public String getName() {
        return name;

    public void setName(String name) { = name;

    public int getAge() {
        return age;

    public void setAge(int age) {
        this.age = age;

    public String toString() {
        return "PersonBean[name='" + name + "',age='" + age + "']";

2) The corresponding .betwixt file (PersonBean.betwixt) it is in the same
directory as the .java file

<?xml version='1.0' encoding='UTF-8' ?>
<info primitiveTypes='attribute'>
<hide property='age'/>
<element name='personassss'>

3) The main class (com.betwixt.sample.WriteExampleApp)

public class WriteExampleApp {

     * Create an example bean and then convert it to xml.
    public static final void main(String [] args) throws Exception {

//        System.setSecurityManager(new java.rmi.RMISecurityManager()); /**
--> Here is the little devil ;-) . If the security manager is defined the
.betwixt file is not considered ;-(  */

        // Start by preparing the writer
        // We'll write to a string
        StringWriter outputWriter = new StringWriter();

        // Betwixt just writes out the bean as a fragment
        // So if we want well-formed xml, we need to add the prolog
        outputWriter.write("<?xml version='1.0' ?>");

        // Create a BeanWriter which writes to our prepared stream
        BeanWriter beanWriter = new BeanWriter(outputWriter);

        // Configure betwixt
        // For more details see java docs or later in the main documentation

        // If the base element is not passed in, Betwixt will guess
        // But let's write example bean as base element 'person'
//        beanWriter.write("person", new PersonBean("John Smith", 21));
        beanWriter.write(new PersonBean("John Smith", 21));

        // Write to System.out
        // (We could have used the empty constructor for BeanWriter
        // but this way is more instructive)

        // Betwixt writes fragments not documents so does not automatically
        // writers or streams.
        // This example will do no more writing so close the writer now.

Question.: I need to maintain the security manager in my application, Does
someone know what do I need to put in the policy file to allow my
application to read the .betwixt file ?

Thank you very much

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