diff --git a/src/objects/zcl_abapgit_object_avas.clas.abap b/src/objects/zcl_abapgit_object_avas.clas.abap
index 90057c5a9..549def9e2 100644
--- a/src/objects/zcl_abapgit_object_avas.clas.abap
+++ b/src/objects/zcl_abapgit_object_avas.clas.abap
@@ -26,9 +26,6 @@ CLASS zcl_abapgit_object_avas DEFINITION
         !is_avas TYPE ty_avas
       RAISING
         zcx_abapgit_exception .
-    METHODS insert_links
-      IMPORTING
-        !is_avas TYPE ty_avas .
     METHODS instantiate
       RETURNING
         VALUE(ro_avas) TYPE REF TO cl_cls_attr_value_assignment
@@ -74,14 +71,6 @@ CLASS ZCL_ABAPGIT_OBJECT_AVAS IMPLEMENTATION.
   ENDMETHOD.
 
 
-  METHOD insert_links.
-
-* todo, how does links work?
-    RETURN.
-
-  ENDMETHOD.
-
-
   METHOD instantiate.
 
     DATA: lv_id  TYPE guid_32,
@@ -162,7 +151,7 @@ CLASS ZCL_ABAPGIT_OBJECT_AVAS IMPLEMENTATION.
     tadir_insert( iv_package ).
 
     insert_assignments( ls_avas ).
-    insert_links( ls_avas ).
+* todo, how does links work?
 
 * corr_insert?
 
diff --git a/src/objects/zcl_abapgit_object_ssfo.clas.abap b/src/objects/zcl_abapgit_object_ssfo.clas.abap
index 1cdeff066..812446b9e 100644
--- a/src/objects/zcl_abapgit_object_ssfo.clas.abap
+++ b/src/objects/zcl_abapgit_object_ssfo.clas.abap
@@ -410,8 +410,7 @@ CLASS ZCL_ABAPGIT_OBJECT_SSFO IMPLEMENTATION.
           li_iterator            TYPE REF TO if_ixml_node_iterator,
           lv_formname            TYPE tdsfname,
           li_ixml                TYPE REF TO if_ixml,
-          li_xml_doc             TYPE REF TO if_ixml_document,
-          lv_within_code_section TYPE abap_bool.
+          li_xml_doc             TYPE REF TO if_ixml_document.
 
     li_ixml = cl_ixml=>create( ).
     li_xml_doc = li_ixml->create_document( ).
diff --git a/src/objects/zcl_abapgit_object_wapa.clas.abap b/src/objects/zcl_abapgit_object_wapa.clas.abap
index b0d66dd8e..8171881b3 100644
--- a/src/objects/zcl_abapgit_object_wapa.clas.abap
+++ b/src/objects/zcl_abapgit_object_wapa.clas.abap
@@ -596,9 +596,7 @@ CLASS ZCL_ABAPGIT_OBJECT_WAPA IMPLEMENTATION.
           lt_navgraph   TYPE o2applgrap_table,
           lt_pages      TYPE o2pagelist,
           lt_pages_info TYPE ty_pages_tt,
-          lo_bsp        TYPE REF TO cl_o2_api_application,
-          lt_sotr       TYPE zif_abapgit_definitions=>ty_sotr_tt,
-          lt_sotr_use   TYPE zif_abapgit_definitions=>ty_sotr_use_tt.
+          lo_bsp        TYPE REF TO cl_o2_api_application.
 
     FIELD-SYMBOLS: <ls_page> LIKE LINE OF lt_pages.
 
diff --git a/src/objects/zcl_abapgit_objects.clas.testclasses.abap b/src/objects/zcl_abapgit_objects.clas.testclasses.abap
index cfa1a0218..5ce7223f4 100644
--- a/src/objects/zcl_abapgit_objects.clas.testclasses.abap
+++ b/src/objects/zcl_abapgit_objects.clas.testclasses.abap
@@ -368,6 +368,11 @@ CLASS ltcl_object_ddls_mock IMPLEMENTATION.
 
     ms_item = is_item.
 
+* dummy use of variable
+    IF iv_language = 'E'.
+      RETURN.
+    ENDIF.
+
   ENDMETHOD.
 
   METHOD zif_abapgit_object~is_locked.
diff --git a/src/objects/zcl_abapgit_sotr_handler.clas.abap b/src/objects/zcl_abapgit_sotr_handler.clas.abap
index 94fe708b8..044c81518 100644
--- a/src/objects/zcl_abapgit_sotr_handler.clas.abap
+++ b/src/objects/zcl_abapgit_sotr_handler.clas.abap
@@ -130,8 +130,7 @@ CLASS ZCL_ABAPGIT_SOTR_HANDLER IMPLEMENTATION.
   METHOD get_sotr_4_concept.
 
     DATA: ls_header   TYPE sotr_head,
-          lt_entries  TYPE sotr_text_tt,
-          lv_obj_name TYPE trobj_name.
+          lt_entries  TYPE sotr_text_tt.
 
     FIELD-SYMBOLS: <ls_entry> LIKE LINE OF lt_entries.
 
@@ -200,9 +199,6 @@ CLASS ZCL_ABAPGIT_SOTR_HANDLER IMPLEMENTATION.
 
   METHOD read_sotr.
 
-    DATA:
-      lv_concept TYPE sotr_head-concept.
-
     FIELD-SYMBOLS <ls_sotr_use> TYPE sotr_use.
 
     " Known SOTR usage...
diff --git a/src/ui/zcl_abapgit_gui_chunk_lib.clas.abap b/src/ui/zcl_abapgit_gui_chunk_lib.clas.abap
index f5b9d6bc8..5330aa3cb 100644
--- a/src/ui/zcl_abapgit_gui_chunk_lib.clas.abap
+++ b/src/ui/zcl_abapgit_gui_chunk_lib.clas.abap
@@ -565,11 +565,10 @@ CLASS ZCL_ABAPGIT_GUI_CHUNK_LIB IMPLEMENTATION.
   METHOD render_order_by_header_cells.
 
     DATA:
-      lt_colspec   TYPE zif_abapgit_definitions=>tty_col_spec,
       lv_tmp       TYPE string,
       lv_disp_name TYPE string.
 
-    FIELD-SYMBOLS <ls_col> LIKE LINE OF lt_colspec.
+    FIELD-SYMBOLS <ls_col> LIKE LINE OF it_col_spec.
 
     CREATE OBJECT ro_html.
 
diff --git a/src/ui/zcl_abapgit_gui_page_debuginfo.clas.abap b/src/ui/zcl_abapgit_gui_page_debuginfo.clas.abap
index 4a5b30565..45aa76b57 100644
--- a/src/ui/zcl_abapgit_gui_page_debuginfo.clas.abap
+++ b/src/ui/zcl_abapgit_gui_page_debuginfo.clas.abap
@@ -138,7 +138,6 @@ CLASS zcl_abapgit_gui_page_debuginfo IMPLEMENTATION.
           lv_class    TYPE seoclsname,
           li_object   TYPE REF TO zif_abapgit_object,
           ls_item     TYPE zif_abapgit_definitions=>ty_item,
-          lv_language TYPE spras,
           ls_metadata TYPE zif_abapgit_definitions=>ty_metadata,
           lv_step     TYPE zif_abapgit_definitions=>ty_deserialization_step,
           lt_steps    TYPE zif_abapgit_definitions=>ty_deserialization_step_tt.
diff --git a/src/ui/zcl_abapgit_gui_page_patch.clas.abap b/src/ui/zcl_abapgit_gui_page_patch.clas.abap
index 3867a3ecf..39440b470 100644
--- a/src/ui/zcl_abapgit_gui_page_patch.clas.abap
+++ b/src/ui/zcl_abapgit_gui_page_patch.clas.abap
@@ -68,7 +68,6 @@ CLASS zcl_abapgit_gui_page_patch DEFINITION
           io_html      TYPE REF TO zcl_abapgit_html
           iv_filename  TYPE string
           is_diff_line TYPE zif_abapgit_definitions=>ty_diff
-          iv_fstate    TYPE char1
           iv_index     TYPE sy-tabix
         RAISING
           zcx_abapgit_exception,
@@ -166,7 +165,6 @@ CLASS zcl_abapgit_gui_page_patch DEFINITION
       is_patch_line_possible
         IMPORTING
           is_diff_line                     TYPE zif_abapgit_definitions=>ty_diff
-          iv_fstate                        TYPE char1
         RETURNING
           VALUE(rv_is_patch_line_possible) TYPE abap_bool.
 
@@ -617,7 +615,6 @@ CLASS ZCL_ABAPGIT_GUI_PAGE_PATCH IMPLEMENTATION.
     render_patch( io_html      = io_html
                   iv_filename  = iv_filename
                   is_diff_line = is_diff_line
-                  iv_fstate    = iv_fstate
                   iv_index     = iv_index ).
 
     super->render_line_split_row(
@@ -646,9 +643,7 @@ CLASS ZCL_ABAPGIT_GUI_PAGE_PATCH IMPLEMENTATION.
 
     lv_patched = get_diff_object( iv_filename )->is_line_patched( iv_index ).
 
-    lv_is_patch_possible = is_patch_line_possible(
-                               is_diff_line = is_diff_line
-                               iv_fstate    = iv_fstate ).
+    lv_is_patch_possible = is_patch_line_possible( is_diff_line ).
 
     IF lv_is_patch_possible = abap_true.
 
diff --git a/src/ui/zcl_abapgit_gui_page_patch.clas.testclasses.abap b/src/ui/zcl_abapgit_gui_page_patch.clas.testclasses.abap
index c39e5f6ed..c1612dcf6 100644
--- a/src/ui/zcl_abapgit_gui_page_patch.clas.testclasses.abap
+++ b/src/ui/zcl_abapgit_gui_page_patch.clas.testclasses.abap
@@ -198,9 +198,7 @@ CLASS ltcl_is_patch_line_possible IMPLEMENTATION.
 
   METHOD when_is_patch_line_possible.
 
-    mv_is_patch_line_possible = zcl_abapgit_gui_page_patch=>is_patch_line_possible(
-            is_diff_line = ms_diff_line
-            iv_fstate    = mv_fstate ).
+    mv_is_patch_line_possible = zcl_abapgit_gui_page_patch=>is_patch_line_possible( ms_diff_line ).
 
   ENDMETHOD.
 
diff --git a/src/ui/zcl_abapgit_gui_page_tutorial.clas.abap b/src/ui/zcl_abapgit_gui_page_tutorial.clas.abap
index 5fb228799..b4f16c176 100644
--- a/src/ui/zcl_abapgit_gui_page_tutorial.clas.abap
+++ b/src/ui/zcl_abapgit_gui_page_tutorial.clas.abap
@@ -64,8 +64,6 @@ CLASS ZCL_ABAPGIT_GUI_PAGE_TUTORIAL IMPLEMENTATION.
 
   METHOD zif_abapgit_gui_renderable~render.
 
-    DATA: lv_devclass TYPE tadir-devclass.
-
     CREATE OBJECT ri_html TYPE zcl_abapgit_html.
 
     ri_html->add( '<div class="tutorial">' ).