there can be many reasons to it below URL will help https://aemhelper.blogspot.com/2022/03/common-cause-of-nullpionterexception-or.html Hope this helps Umesh Thakur

registering a servlet thru resourceType is always a best practice as you can easily manage the access to that content but sometime we need to have servlet registered with path in such a case you can secure it on dispatcher filter. Hope this helps Umesh Thakur  

Reason will be(most probably), there will be mismatch b/w your code and your config, available on AEM. And since there will not be any mode set for the path in filter.xml so after every deployment your code will be overwriting the policy config in AEM and that is why your policy get removed( ideally...

You need to make the same change in your codebase and use mode= merge or update(based on your requirement) in filter.xml to persist your changes. Hope this helps Umesh Thakur

) Is there any way to create Replication agent through some APIs?--- what do you mean?   2) Is there any way programmatically to enable/disable Replication agent? Yes you can, but will be helpful if you can refine your requirement.

Yes we do have. From the asset console, you just select the image and select the references from the left rail.   if you need the reference in query, you can easily write one. You can get the reference in code as well. Hope this hleps. Umesh Thakur

You misinterpret it. It says system user will have all the required permission to do the replication job but that should not be the user "admin", which we used for login as an administrator. In AEM still there are so many ares, which are not accessible to user who is from Administrator group but not...

I think there can be a way to achieve it. thru shell script with the help of curl commands you can create a package build it and replicate it. Maybe you need to setup one replication agent for this, if there is not any already available. CURL list can be found one below link: https://experienceleagu...

Where are you reading JSON? Most probabily in Javascript of dialog right? if you are using JS, you should put some condition in your js like if value are coming from back-end then don't assign the value from JS, if not then assign value from JS and JSON. Meanwhile when you save your dialog after mod...

If you have configured properly it should work, not sure why it is not working in your case. If possible for you, please share config screenshot.Sometime I also find chrome browser moseIf plugin to overcome CORS error. Hope this helps Umesh Thakur