Hi @rohankalra you can use javascript use api to check if the resource exist or not.1. create a js file in same component where your AEM sightly code is.use below  "use strict"; use(["/libs/wcm/foundation/components/utils/ResourceUtils.js"], function (ResourceUtils) { var path=this.pngpath; Reso...

if you are using AEM UI, you can edit only title, description and Language. I am not sure how you are editing the tag.

if you have created a servlet and resource resolver is not thread safe (servlet instance variable) then you can face this issue. create resource resolve / session in doGet or doPost methods and then close at the end. if you are using service and creating instance variable for resource resolver / ses...

@Abbirami You need to follow below steps  -1) Create a replication agent say agent-preview and configure the url etc of the Preview server. Under Triggers Tab you need to set No Status Update.2) In your workflow edit Replicate with option process step and configure the Arguments -replicationActionTy...

When you edit any tag then its only to change the title and description of the tag. in your above example is a case of move operation and not edit as you are changing the node name.  

It seems you are using Spring J2EE rules also in SonarQube. if Spring is not used then you can remove those rules.if its really required to fix then you can write as below -   import org.apache.sling.api.SlingHttpServletRequest; import org.apache.sling.api.resource.Resource; import org.apache.sling....

@goyalkritika if your navigationLogic method is separate from doGetMethod and its not using request and response objects then you can simply create an object of servlet class and call the method.ServletClass abc = new ServletClass();abc.navigationLogic(); if navigationLogic method is common code tha...