java.xml (JAXP) factories can be initiated by reading an internal configuration file (jaxp.properties) when the factories are initialized. The configuration file (https://docs.oracle.com/en/java/javase/17/docs/api/java.xml/module-summary.html#JaxpProperties) may contain properties for the factory lookup mechanism, secure processing, and the Catalog API. It is, however, a JDK internal file, modifying it therefore is not advisable or even feasible in certain situations. A way to specify the properties file outside of the JDK should be provided.