Loading jar file at runtime from an external folder in spring boot

[Umesh Sanwal]

I have a spring boot application . I want to load external jars from an external folder at runtime in the spring boot application after the application is started without restarting the context. The external jar contains @Service , @Component annotated classes.

What I have tried till now:

I loaded all the classes from the external jar at runtime . I have used a watcher which triggers the loader whenever there is a jar added to the folder being watched.

Below are the steps:
1) Autowire annotationconfigapplicationcontext bean .
2) Load the classes from the external folder using loader
3) register those classes in annotationconfigapplicationcontext
4) restart the annotationconfigapplicationcontext

Also i tried autowiring the classes programatically but the drawback with that is that there might be a @Service class dependent on another @Component class hence I need to maintain the bean creation order which is hard to handle programatically.

Is there a way i can load the classes from the external jar without restarting the application context.

[Himai Minh]

Maybe, you can try  the refresh() method of AnnotationConfigApplicationContext inherited from AbstractApplicationContext.

[Umesh Sanwal]

I tried by the refresh way , but the refresh reloads the entire context i.e it destroys already created beans and creates them again which I dont want in my case.