This looks similar to https://blogs.perficient.com/2021/04/02/writing-less-java-code-in-aem-with-sling-models/ 

Can the auto-save feature in the new content fragment editor be disabled? I know there is a configuration to increase the auto-save, but I believe it works only for the old editor.Please let me know.

You will need to provide URL mapping for incoming request as well which will resolve to full url. But for your mapping it will be hard to resolve. Instead you can try this^/content/client/abc/(.+).html</abc/$1.html^/content/client/xyz/(.+).html</xyz/$1.html^/content/client/pqr/(.+).html</pqr/$1.html...

I tried re-ordering it is not working for me. 

I am still facing the issue. I tried with sample main method and I getting the below errorException in thread "main" java.lang.NoClassDefFoundError: com/google/gson/internal/bind/JsonTreeReaderat com.vanguard.aem.iig.transformation.core.helper.JsonHelper.getJsonString(JsonHelper.java:14)at com.vangu...