Some task must be running on that port. Kill that task to free the port and try starting the jar. Follow the below steps to kill the task:Open up cmd.exe (note: you may need to run it as an administrator, but this isn't always necessary), then run the below command: netstat -ano | findstr :<PORT> (R...

You need to write a service to process the links based on whatever the criteria you want.Now in each of the component/places where you use any link, call that service to process the link and return the updated link that you get from the service.

Not very sure if I understand the question. Do you mean to say that you want to populate the last three fields depending on the selection of the dropdown?

Could you please elaborate the issue a bit. Does it stop working only for a specific rootpath? Or it does not work even if you change the rootpath?Did you try checking the logs for errors? Please share the errors that you are getting in logs.

Add a dependency in your core pom of your second site. Something like this:<dependency>    <groupId>com.myproject</groupId>    <artifactId>common-code</artifactId>    <version>1.0.0</version></dependency> The artifactId and groupId should be same as you have defined in your project(first site). Then...

You can refer this link for Junit tests:https://experienceleague.adobe.com/docs/experience-manager-learn/getting-started-wknd-tutorial-develop/project-archetype/unit-testing.html?lang=en 

Try using this:currentStyle.getDesign().getJSON(); And parse the values returned from it.

@NitinL Sorry, I misunderstood the question. In this case you will have to go with a custom validation script. This might take more effort than sounds. I think, you will have to check the resourceType from backend code and use jquery to fetch that and validate.

@Ravi_Joshi You can try method overloading. Just create a version of the method with an extra parameter to take this field value(which you are injecting in the model). That way it won't affect the existing classes which are using the same method.

@NitinL  Follow the below steps:1. Overlay the contentfragment dialog from libs to apps. You can find the core component in this path: /libs/core/wcm/components/contentfragment/v1/contentfragment/cq:dialog/2. Add a property "required" "Boolean" "true" to the fragmentPath field(/libs/core/wcm/compone...