Draw a smooth line

I am developing a game using libgdx and i want to draw a smooth line using shape renderer.

        shaperenderer.begin(ShapeType.Line);
        shaperenderer.line(fisrstVec2,secondVec2);
        shaperenderer.end();

I have tried Multi Sample anti aliasing from libgdx blog. I have also went through Anti aliased filed shape in libgdx but unfortunately these line is not in latest verson of libgdx.

   Gdx.gl.glEnable(GL10.GL_LINE_SMOOTH);
   Gdx.gl.glEnable(GL10.GL_POINT_SMOOTH);