INTEROP-9373: fix(jira): handle epic lookup failure gracefully in create_issue

src/objects/jira_base.py

@@ -144,15 +144,25 @@ def create_issue(
                 self.add_attachment_to_issue(issue=issue, attachment_path=file_path)
 
         if epic is not None:
-            epic_search = self.connection.search_issues(f"issue={epic}", maxResults=False)
-            if len(epic_search) == 1:
-                epic_id = epic_search[0].id
-                self.connection.add_issues_to_epic(
-                    epic_id=epic_id,
-                    issue_keys=issue.key,
+            try:
+                epic_search = self.connection.search_issues(f"issue={epic}", maxResults=False)
+                if len(epic_search) == 1:
+                    epic_id = epic_search[0].id
+                    self.connection.add_issues_to_epic(
+                        epic_id=epic_id,
+                        issue_keys=issue.key,
+                    )
+                else:
+                    LOGGER.warning(
+                        f"Epic {epic} not found or not accessible; issue {issue} created without epic link",
+                    )
+            except JIRAError as e:
+                LOGGER.warning(
+                    f"Failed to link {issue} to epic {epic} "
+                    f"(status {e.status_code}): {e.text}. "
+                    f"Issue created without epic link.",
+                    exc_info=True,
                 )
-            else:
-                LOGGER.error(f"Error finding Jira ID of epic {epic}")
 
         if assignee is not None:
             self.assign_issue(user_email=assignee, issue=issue.key)

tests/unittests/objects/jira/test_jira.py

@@ -288,6 +288,73 @@ def test_epic_lookup_uses_unquoted_issue_key_for_cloud_compatibility(self, mock_
             issue_keys="TEST-1",
         )
 
+    def test_epic_lookup_jira_error_does_not_crash(self, mock_jira):
+        mock_jira.connection.search_issues.side_effect = JIRAError(
+            "The requested epic cannot be viewed",
+            404,
+            "https://jira/rest/agile/1.0/epic",
+        )
+
+        with patch("src.objects.jira_base.LOGGER") as mock_logger:
+            issue = mock_jira.create_issue(
+                project="TEST",
+                summary="Test issue",
+                description="Description",
+                issue_type="Bug",
+                epic="INTEROP-9999",
+            )
+
+        assert issue is not None
+        assert issue.key == "TEST-1"
+        mock_jira.connection.add_issues_to_epic.assert_not_called()
+        warning_msg = mock_logger.warning.call_args[0][0]
+        assert "INTEROP-9999" in warning_msg
+        assert "Issue created without epic link" in warning_msg
+
+    def test_epic_lookup_empty_results_warns_without_error(self, mock_jira):
+        mock_jira.connection.search_issues.return_value = []
+
+        with patch("src.objects.jira_base.LOGGER") as mock_logger:
+            issue = mock_jira.create_issue(
+                project="TEST",
+                summary="Test issue",
+                description="Description",
+                issue_type="Bug",
+                epic="INTEROP-9999",
+            )
+
+        assert issue is not None
+        assert issue.key == "TEST-1"
+        mock_jira.connection.add_issues_to_epic.assert_not_called()
+        warning_msg = mock_logger.warning.call_args[0][0]
+        assert "INTEROP-9999" in warning_msg
+
+    def test_add_issues_to_epic_jira_error_does_not_crash(self, mock_jira):
+        epic_issue = MagicMock()
+        epic_issue.id = "20001"
+        mock_jira.connection.search_issues.return_value = [epic_issue]
+        mock_jira.connection.add_issues_to_epic.side_effect = JIRAError(
+            "You do not have permission to link to this epic",
+            403,
+            "https://jira/rest/agile/1.0/epic/20001/issue",
+        )
+
+        with patch("src.objects.jira_base.LOGGER") as mock_logger:
+            issue = mock_jira.create_issue(
+                project="TEST",
+                summary="Test issue",
+                description="Description",
+                issue_type="Bug",
+                epic="INTEROP-1234",
+            )
+
+        assert issue is not None
+        assert issue.key == "TEST-1"
+        mock_jira.connection.add_issues_to_epic.assert_called_once()
+        warning_msg = mock_logger.warning.call_args[0][0]
+        assert "INTEROP-1234" in warning_msg
+        assert "Issue created without epic link" in warning_msg
+
 
 class TestJiraInitAuth:
     @pytest.fixture