Problem launching BSP app in WebAS 6.40 SP 15 in a new window

Question

The following logic is suppose to launch a new window and call another BSP with a new WebAS session via the URL built below.  This is working on WebAS 6.40 SP 12 but not in WebAS 6.40 SP 15.  In SP 15 it is not creating a new session it is trying to reuse the existing session so therefore when you click on another object it pulls up the information for the first object.  Any thoughts?
      WHEN 'OBJID'.  "Position Number
Create a link which will open a new window to Display the position
        REFRESH url_params_tbl.
        url_param-name = 'posid'.
        url_param-value = search_results_row-objid.
        APPEND url_param TO url_params_tbl.
        url_param-name = 'mode'.
        url_param-value = zcl_hr_post_detls_model=>c_display_mode.
        APPEND url_param TO url_params_tbl.
        url_param-name = 'apply'.
        url_param-value = zcl_hr_post_detls_model=>c_yes.
        APPEND url_param TO url_params_tbl.
        CALL METHOD cl_http_ext_webapp=>create_url_for_bsp_application
          EXPORTING
            bsp_application      = 'Z_HR_POST_DETLS'
            bsp_start_page       = 'session.htm'
            bsp_start_parameters = url_params_tbl
          IMPORTING
            local_url            = wa_url.

Answer 1

may be try the new method IF_BSP_RUNTIME~CONSTRUCT_BSP_URL for constructing the url
Regards
Raja