Lifecycle of Objects Before Spring Boot DI

[Akshayyha Krishnamurthy]

I am a beginner to Spring Boot so have started with Dependency Injection concept. One thing I see about DI in almost all the sites is that 'Lifecycle of the objects are maintained by Spring'. Even before Spring in core Java, I couldn't see it is maintained by us with the ClassLoaders and GC involved.

Could someone explain me how objects are maintained in java before Spring Boot DI came into play?

[Les Morgan]

life in java is pretty simple: have a reference to the object and the object says live, lose the reference, the object becomes orphaned, then the object is marked for garbage collection. the object will still hang around until the garbage collector disposes of it, but will not be addressable because it has been orphaned.