@Override
    public void setTitle(final String title) {
        if (created.get() && window != NULL) {
            glfwSetWindowTitle(window, title);
        }
    }
Set the title if it's a windowed display

@param title the title to set
jme3-lwjgl3/src/main/java/com/jme3/system/lwjgl/LwjglWindow.java