converting the Java objects tree to RDF

[Serge Vilvovsky]

I am looking for an advice.

I have the model defined in POJO. For example the object of type A contains
the list of objects of type B and array of objects of type C. All the
objects also have simple properties like String, int, long etc.

For example:

public Class A {

  List<B> bs;
  C[] cs;
  String name;
  int size;
}

I would like to create an RDF (or JSON-LD) that describes that model with
the statements like:

A:a1 A:name "myobject"

What tools and approaches do you suggest me to use to build it
automatically for any kind of objects?

Thank you!