diff --git a/src/dsp_tools/cli/entry_point.py b/src/dsp_tools/cli/entry_point.py
index e897f1529..fab4b1d50 100644
--- a/src/dsp_tools/cli/entry_point.py
+++ b/src/dsp_tools/cli/entry_point.py
@@ -38,7 +38,6 @@ def run(args: list[str]) -> None:
         UserError: if user input was wrong
         InputError: if user input was wrong
         InternalError: if the user cannot fix it
-        RetryError: if the problem may disappear when trying again later
     """
     _check_version()
     default_dsp_api_url = "http://0.0.0.0:3333"
diff --git a/src/dsp_tools/models/exceptions.py b/src/dsp_tools/models/exceptions.py
index a3cb3cf2b..5316c2de3 100644
--- a/src/dsp_tools/models/exceptions.py
+++ b/src/dsp_tools/models/exceptions.py
@@ -42,29 +42,6 @@ def __init__(self, custom_msg: str | None = None, keep_default_msg: bool = True)
                 super().__init__(default_msg)
 
 
-class RetryError(BaseError):
-    """A class for errors where the user should try again later."""
-
-    def __init__(self, custom_msg: str | None = None, keep_default_msg: bool = True) -> None:
-        default_msg = (
-            "\n\nAn internal error occurred.\n"
-            "Please contact the dsp-tools development team with the following information:\n"
-            "    - Which command was used.\n"
-            "    - If applicable, any files that were used in conjunction with the command.\n"
-            "    - A file with the terminal output copied into.\n"
-            "    - The log files called 'logging.log', if there are several, include all.\n"
-            f"     They can be found at: {Path.home() / Path('.dsp-tools')}\n"
-        )
-        match keep_default_msg, custom_msg:
-            case False, str():
-                super().__init__(custom_msg)  # type: ignore[arg-type]
-            case True, str():
-                default_msg = f"\n\n{custom_msg}\n--------------------------{default_msg}"
-                super().__init__(default_msg)
-            case _:
-                super().__init__(default_msg)
-
-
 class InputError(BaseError):
     """Class for errors that is called when the user input is invalid."""
 
diff --git a/src/dsp_tools/utils/shared.py b/src/dsp_tools/utils/shared.py
index f0c6fd016..0ae032886 100644
--- a/src/dsp_tools/utils/shared.py
+++ b/src/dsp_tools/utils/shared.py
@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import copy
-import glob
 import importlib.resources
 import json
 import unicodedata
@@ -250,17 +249,3 @@ def parse_json_input(project_file_as_path_or_parsed: Union[str, Path, dict[str,
     else:
         raise BaseError("Invalid input: The input must be a path to a JSON file or a parsed JSON object.")
     return project_definition
-
-
-def get_most_recent_glob_match(glob_pattern: Union[str, Path]) -> Path:
-    """
-    Find the most recently created file that matches a glob pattern.
-
-    Args:
-        glob_pattern: glob pattern, either absolute or relative to the cwd of the caller
-
-    Returns:
-        the most recently created file that matches the glob pattern
-    """
-    candidates = [Path(x) for x in glob.glob(str(glob_pattern))]
-    return max(candidates, key=lambda item: item.stat().st_ctime)
diff --git a/test/e2e/commands/test_create_get_xmlupload.py b/test/e2e/commands/test_create_get_xmlupload.py
index 98b7ac808..5ec51f942 100644
--- a/test/e2e/commands/test_create_get_xmlupload.py
+++ b/test/e2e/commands/test_create_get_xmlupload.py
@@ -1,8 +1,9 @@
+import glob
 import json
 import shutil
 import unittest
 from pathlib import Path
-from typing import Any, Optional, cast
+from typing import Any, Optional, Union, cast
 
 import regex
 
@@ -10,7 +11,6 @@
 from dsp_tools.commands.project.create.project_create import create_project
 from dsp_tools.commands.project.get import get_project
 from dsp_tools.commands.xmlupload.xmlupload import xmlupload
-from dsp_tools.utils.shared import get_most_recent_glob_match
 
 # ruff: noqa: PT009 (pytest-unittest-assertion) (remove this line when pytest is used instead of unittest)
 
@@ -68,7 +68,7 @@ def test_xml_upload_incremental(self) -> None:
         )
         self.assertTrue(success)
 
-        mapping_file = get_most_recent_glob_match("test-data-systematic_id2iri_mapping_*.json")
+        mapping_file = self._get_most_recent_glob_match("test-data-systematic_id2iri_mapping_*.json")
         second_xml_file_orig = Path("testdata/id2iri/test-id2iri-data.xml")
         success = id2iri(
             xml_file=str(second_xml_file_orig),
@@ -77,7 +77,7 @@ def test_xml_upload_incremental(self) -> None:
         mapping_file.unlink()
         self.assertTrue(success)
 
-        second_xml_file_replaced = get_most_recent_glob_match(f"{second_xml_file_orig.stem}_replaced_*.xml")
+        second_xml_file_replaced = self._get_most_recent_glob_match(f"{second_xml_file_orig.stem}_replaced_*.xml")
         success = xmlupload(
             input_file=second_xml_file_replaced,
             server=self.server,
@@ -499,3 +499,17 @@ def _remove_onto_names_in_original_resources(
             if any(sup.startswith(onto_name) for sup in supers_as_list):
                 res["super"] = [regex.sub(rf"^{onto_name}:", ":", sup) for sup in supers_as_list]
         return resources_original
+
+    @staticmethod
+    def _get_most_recent_glob_match(glob_pattern: Union[str, Path]) -> Path:
+        """
+        Find the most recently created file that matches a glob pattern.
+
+        Args:
+            glob_pattern: glob pattern, either absolute or relative to the cwd of the caller
+
+        Returns:
+            the most recently created file that matches the glob pattern
+        """
+        candidates = [Path(x) for x in glob.glob(str(glob_pattern))]
+        return max(candidates, key=lambda item: item.stat().st_ctime)