Remove ns2 in default namespace - JAXB, Entity XML Mapping

Just create a package-info.java file for your package in which you have your POJO:

@javax.xml.bind.annotation.XmlSchema(namespace = "http://myNameSpace", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
package my.package;

The ns2 will be gone when you perform the usual Entity.xml(...)

Generate JAXB Java Classes from XSD File

This is a fine one: if you only do have XML and nothing else, you can generate an XSD from the XML (here) and use the XSD to generate your Java POJOS.

I am currently forced to use windows, so I will use this example.

Download jaxb-ri-2.3.0 (Version may differ for you, what ever is the newest version).
Open CMD window and change to the directory  jaxb-ri-2.3.0\jaxb-ri\bin
Copy your XSD into the folder and type:
xjc.bat <yourfile.xsd> -d <yourDirectory>

And your POJOs will be generated, ready to use.

Great article in German: Führung im agilen Umfeld - Vertrauen gewinnt!

[German Post] - Agilität und Vertrauen