Added comments.

components/identity-extensions/org.wso2.carbon.device.mgt.oauth.extensions/src/main/java/org/wso2/carbon/device/mgt/oauth/extensions/validators/PermissionBasedScopeValidator.java

@@ -65,7 +65,7 @@ public class PermissionBasedScopeValidator extends OAuth2ScopeValidator {
         int idx = resource.lastIndexOf(':');
         String url = resource.substring(0, idx);
         String method = resource.substring(++idx, resource.length());
-        //This is to remove the url params
+        //This is to remove the url params for request path.
         int urlParamIndex = url.indexOf('?');
         if(urlParamIndex > 0) {
             url = url.substring(0, urlParamIndex);