@StdVector
https://github.com/bytedeco/javacpp/blob/master/src/main/java/org/bytedeco/javacpp/annotation/StdVector.java

sample  cpp
    std::unique_ptr<std::vector<SomeData>>
    getSomeDataVector()
    {
        std::unique_ptr<std::vector<SomeData>> result(new std::vector<SomeData>());
        result->push_back(SomeData());
        return result;
    }

sample java
    @Name("std::vector<sfst::Analysis>") public static class SomeDataVector extends Pointer {
        public native long size();
        @Index(function = "at") public native @Const @ByRef SomeData get(@Cast("std::size_t") long i);
    }

    public static class SomeProc extends Pointer {
        // ...
        public native @UniquePtr SomeDataVector getSomeDataVector();
    }