src/content/ns/auxiliary-configuration/1.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    targetNamespace="https://netbeans.org/ns/auxiliary-configuration/1"
    xmlns="https://netbeans.org/ns/auxiliary-configuration/1"
    elementFormDefault="qualified">
    <xsd:element name="auxiliary-configuration">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>