public Builder withJAXBContextInstantiationMode(
        JAXBContextInstantationMode jaxbContextInstantiationMode) {
      this.jaxbContextInstantationMode = jaxbContextInstantiationMode;
      return this;
    }
Provide an instantiation mode for JAXB Contexts, can be class or package, default is class if
this method is not called.

<p>Example : <br>
<br>
<code>
   new JAXBContextFactory.Builder()
     .withJAXBContextInstantiationMode(JAXBContextInstantationMode.PACKAGE)
     .build();
</code>
jaxb-jakarta/src/main/java/feign/jaxb/JAXBContextFactory.java