Hello everyone. I have a really complicated question (and I don't
really know if this is even possible).

I am currently developing a program that is multithreaded. I have a
lot of methods that start a thread and call other methods from other
classes. All the time, I have to make sure that the class's method
that I am calling is correctly synchronized (if needed) or not. So
here is what I was looking the last couple of days.

I know Java has an Annotation Type system that it can help me mark
various methods in a class for a particular purpose (such as a @Test
or @FixThis). So I was thinking, this could also work if every method
that inside the code a thread is initiated, I could Annotate it as
@ThreadCreator. Also, I could annotate a method that is being called
from a thread as @ThreadSafe (making sure of course that it is indeed
a thread-safe method). This is the first part.

The second part is to use Java Reflection API. I saw that I can use
this API to find what annotations a class uses and where. So I know I
could find out that a particular method in a class is annotated as
@ThreadCreator.

Now, combining this together, I was wondering if I could create a
"system" (I don't really know how to call it) that would take a class
that I give it, find which methods are annotated with @ThreadCreator,
invoke those methods, and see if the methods call other methods that
are not annotated as @ThreadSafe, in which case the "system" will warn
me that this should be @ThreadSafe.

Is this even possible? Is there any other solution to this? Is there
already an implementation of this?

Thank you very much for your time.