Java: XML normalization

What is the simplest way to make the canonical form of XML files in Java? Do you have some complete code? I have found several links on the Internet, such as this, this and this, but I can't make it work:/

thank you,

Ivan

Editor: I used the specification proposed there, but I got strange results For simplicity, this method does not delete spaces between elements... This is what I get:

<Metric xmlns="http://www.ibm.com/wsla" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="total_memory_consumption_metric" type="double" unit="Mbit" xsi:schemaLocation="http://www.ibm.com/wsla WSLA.xsd">                        <Source>ServiceProvider</Source>                        <MeasurementDirective resultType="double" xsi:type="StatusRequest">                              <RequestURI> ***unused*** </RequestURI>                        </MeasurementDirective>                  </Metric>

Solution

Canonicalizer Apache XML Security Project:

Canonicalizer canon = Canonicalizer.getInstance(Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS);
byte canonXmlBytes[] = canon.canonicalize(yourXmlBytes);
String canonXmlString = new String(canonXmlBytes);
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