FAQ.md

@@ -151,6 +151,15 @@ Visit https://github.com/openapitools/openapi-generator and then click on the "F
 
 Yes, please refer to http://stackoverflow.com/a/6055903/677735
 
+### I want to use customized templates for Java Feign client. How can I do that?
+
+You will need to provide customized files in `Java/libraries/feign` under the resources folder and pass the location via the `-t` option.
+
+In your Gradle build script, please add the following (example):
+```
+config.templateDir = 'src/openapi-generator-templates/Java/libraries/feign
+```
+
 ## Android
 
 ### How can I generate an Android SDK?