How to disable xmlns targetNamespace in final XML with Jaxb2Marshaller in Java

Question

I have a perfectly working XML file writer class which writes a final XML file with Jaxb2Marshaller, with the following code:

final String XSD_FILE_NAME = myxsd.xsd
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
marshaller.setSchema(resourceLoader.getResource("classpath:xml/" + XSD_FILE_NAME));
marshaller.setContextPath("com.my.project.type");
marshaller.setMarshallerProperties(ImmutableMap.of(
        JAXB_FORMATTED_OUTPUT, Boolean.TRUE,
        JAXB_NO_NAMESPACE_SCHEMA_LOCATION, XSD_FILE_NAME
));
marshaller.afterPropertiesSet();

// this is the way to write into cache for validation:
JAXBElement<MyFile> myFileToMarshall = new ObjectFactory().createMyFile();
try {
    marshaller.marshal(myFileToMarshall, new SAXResult(new DefaultHandler()));
} catch (XmlMappingException xme) {
    throw new RuntimeException("Unable to create exact xml file, because the data is not valid!", xme);
}

try (FileOutputStream fileOutputStream = new FileOutputStream("C:/tmp/file.xml")) {
    marshaller.marshal(myFileToMarshall, new StreamResult(fileOutputStream));
} catch (IOException e) {
    throw new RuntimeException("Exact XML writing failed", e);
}

The beginning of the XSD looks this:

<?xml version="1.0" encoding="utf-8"?>
<xs:schema elementFormDefault="qualified" attributeFormDefault="unqualified"
           targetNamespace="http://xmlns.myproject.com/v1"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           xmlns:tns="http://xmlns.myproject.com/v1">

And the beginning of the final generated file looks like this:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<eExact xmlns="http://xmlns.myproject.com/v1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="myxsd.xsd">

And what I want:

I want to remove from the final file the xmlns="http://xmlns.myproject.com/v1" part, but be able to validate the final file with the XSD.

Is it possible?

Why? Without the namespace it wouldn't know where to get the elements from and validation would fail. — M. Deinum, Jan 08 '19 at 13:17
Yes I know, but this is my task now, to remove that part from the final file, even if it is a stupid idea. — victorio, Jan 08 '19 at 13:23
Looks like. The third party program which will read the final XML is wrong, and they cannot modify it. That is why I need to modify the final XML. — victorio, Jan 08 '19 at 13:42
See https://stackoverflow.com/questions/17222902/remove-namespace-prefix-while-jaxb-marshalling/22755785 — M. Deinum, Jan 08 '19 at 13:43

How to disable xmlns targetNamespace in final XML with Jaxb2Marshaller in Java

0 Answers0