This project uses the simple-path-generator plugin to create a builder java class that can be used in conjunction with the AAS registry client to reference a field of an AssetAdministrationShellDescriptor document.
To use the path builder class, specify this dependency in your POM file with an appropriate version:
<dependency>
<groupId>org.eclipse.digitaltwin.basyx</groupId>
<artifactId>basyx.aasregistry-paths</artifactId>
</dependency>
Look at the API client project to see how the usage in source code.