When you open the Bundle in Felix console, are you seeing any red?
can you try immediate=true with the @component declaration and see if it helps?
@Component(service = GlobalService.class, immediate = true)
No. Nothing is in Red. Bundle is active
@Service(value = GlobalService.class)
@Component( immediate = true)
This is there. Still the class is in satisfied state.
How are you calling the Service - this is not an HTL component correct? Are you using JSP?
Also - how did you build your project? Are you using Maven Acrhetype?
This part of the stack trace does not indicate that an OSGI component does not work, but rather that a scriptlet (JSP?) ist not compiled.
When you have a proper OSGI component as part of a bundle, it is typically compiled in a maven build, and not in AEM. Only scripts are compiled in AEM.
So we need information how your maven project looks like and how you compile and deploy it.