[bugfix] use return not thrown exception result for lamda

atms-api/src/main/java/pwc/taxtech/atms/vat/service/impl/report/functions/BB.java

@@ -62,7 +62,7 @@ public class BB extends FunctionBase implements FreeRefFunction {
             CellTemplatePerGroupDto cellTemplateData = agent.getCellTemplateGroupDto(formulaContext.getReportTemplateGroupID(),
                     formulaContext.getProjectID()).stream().filter(dto -> dto.getRowIndex() == bo.getColumnIndex() - 1
                     && dto.getColumnIndex() == bo.getColumnIndex() - 1).findFirst().orElseThrow(() -> {
-                throw Exceptions.BB_CELL_TEMP_NULL;
+                return Exceptions.BB_CELL_TEMP_NULL;
             });
 
             MyAsserts.assertNotNull(cellTemplateData, Exceptions.BB_CELL_TEMP_NULL);