update

src/utils/zcl_oapi_references.clas.abap

@@ -156,10 +156,16 @@ CLASS zcl_oapi_references IMPLEMENTATION.
     lt_copy = ms_spec-components-schemas.
     CLEAR ms_spec-components-schemas.
     WHILE lo_graph->is_empty( ) = abap_false.
-      lv_name = lo_graph->pop( ).
-      READ TABLE lt_copy INTO ls_copy WITH KEY name = lv_name.
-      ASSERT sy-subrc = 0.
-      INSERT ls_copy INTO ms_spec-components-schemas INDEX 1.
+      TRY.
+          lv_name = lo_graph->pop( ).
+          READ TABLE lt_copy INTO ls_copy WITH KEY name = lv_name.
+          ASSERT sy-subrc = 0.
+          INSERT ls_copy INTO ms_spec-components-schemas INDEX 1.
+        CATCH zcx_oapi_graph_cycle INTO DATA(lo_exc).
+
+
+      ENDTRY.
+
     ENDWHILE.
 
   ENDMETHOD.

src/utils/zcx_oapi_graph_cycle.clas.abap

@@ -1,14 +1,36 @@
-class ZCX_OAPI_GRAPH_CYCLE definition
-  public
-  final
-  create public .
-
-public section.
-protected section.
-private section.
-ENDCLASS.
+CLASS zcx_oapi_graph_cycle DEFINITION
+  PUBLIC
+  INHERITING FROM cx_static_check
+  FINAL
+  CREATE PUBLIC .
+
+  PUBLIC SECTION.
+    INTERFACES if_t100_message.
+    INTERFACES if_t100_dyn_msg.
+
+    METHODS constructor
+      IMPORTING
+        !cycle_typename TYPE string
+        !textid         LIKE if_t100_message=>t100key OPTIONAL
+        !previous       LIKE previous OPTIONAL .
+  PROTECTED SECTION.
+  PRIVATE SECTION.
+
+    DATA cycle_typename TYPE string.
+  ENDCLASS.
 
 
 
-CLASS ZCX_OAPI_GRAPH_CYCLE IMPLEMENTATION.
+    CLASS zcx_oapi_graph_cycle IMPLEMENTATION.
+    METHOD constructor ##ADT_SUPPRESS_GENERATION.
+      CALL METHOD super->constructor
+        EXPORTING
+          previous = previous.
+      CLEAR me->textid.
+      IF textid IS INITIAL.
+        if_t100_message~t100key = if_t100_message=>default_textid.
+      ELSE.
+        if_t100_message~t100key = textid.
+      ENDIF.
+    ENDMETHOD.
 ENDCLASS.

src/utils/zcx_oapi_graph_cycle.clas.xml

@@ -1,4 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <abapGit version="v1.0.0" serializer="LCL_OBJECT_CLAS" serializer_version="v1.0.0">
- <asx:abap version="1.0" xmlns:asx="http://www.sap.com/abapxml"/>
+ <asx:abap xmlns:asx="http://www.sap.com/abapxml" version="1.0">
+  <asx:values>
+   <VSEOCLASS>
+    <CLSNAME>ZCX_OAPI_GRAPH_CYCLE</CLSNAME>
+    <LANGU>D</LANGU>
+    <DESCRIPT>Cycle Graph Exception</DESCRIPT>
+    <CATEGORY>40</CATEGORY>
+    <STATE>1</STATE>
+    <CLSCCINCL>X</CLSCCINCL>
+    <FIXPT>X</FIXPT>
+    <UNICODE>X</UNICODE>
+   </VSEOCLASS>
+  </asx:values>
+ </asx:abap>
 </abapGit>