fix(derive_code_mapping): Grab absPath instead of abs_path (#88673)

This is necessary for using the "Set up code mapping" modal for Java
projects.

Fixes [SENTRY-3RDY](https://sentry.sentry.io/issues/6505158896/)

Author: armenzg

src/sentry/issues/auto_source_code_config/derived_code_mappings_endpoint.py

@@ -26,7 +26,7 @@ def get_file_and_repo_matches(request: Request, organization: Organization) -> l
 
 def get_frame_info_from_request(request: Request) -> FrameInfo:
     frame = {
-        "absPath": request.GET.get("absPath"),
+        "abs_path": request.GET.get("absPath"),
         # Currently, the only required parameter, thus, avoiding the `get` method
         "filename": request.GET["stacktraceFilename"],
         "module": request.GET.get("module"),

tests/sentry/api/endpoints/issues/test_organization_derive_code_mappings.py

@@ -59,6 +59,32 @@ def test_get_single_match(self, mock_get_trees_for_org: Any) -> None:
             assert response.status_code == 200, response.content
             assert response.data == expected_matches
 
+    @patch("sentry.integrations.github.integration.GitHubIntegration.get_trees_for_org")
+    def test_get_frame_with_module(self, mock_get_trees_for_org: Any) -> None:
+        config_data = {
+            "absPath": "Billing.kt",
+            "module": "com.waffleware.billing.Billing$1",
+            "platform": "java",
+            "stacktraceFilename": "Billing.kt",
+        }
+        expected_matches = [
+            {
+                "filename": "Billing.kt",
+                "repo_name": "getsentry/codemap",
+                "repo_branch": "master",
+                "stacktrace_root": "com/waffleware/",
+                "source_path": "app/src/main/java/com/waffleware/",
+            }
+        ]
+        with patch(
+            "sentry.issues.auto_source_code_config.code_mapping.CodeMappingTreesHelper.get_file_and_repo_matches",
+            return_value=expected_matches,
+        ):
+            response = self.client.get(self.url, data=config_data, format="json")
+            assert mock_get_trees_for_org.call_count == 1
+            assert response.status_code == 200, response.content
+            assert response.data == expected_matches
+
     @patch("sentry.integrations.github.integration.GitHubIntegration.get_trees_for_org")
     def test_get_start_with_backslash(self, mock_get_trees_for_org: Any) -> None:
         file = "stack/root/file.py"