{"record":{"id":"2ae002256978fe01","repo":"googleapis/mcp-toolbox","slug":"failed-to-marshal-session-to-json-w","errorCode":null,"errorMessage":"failed to marshal session to JSON: %w","messagePattern":"failed to marshal session to JSON: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/sources/serverlessspark/serverlessspark.go","lineNumber":437,"sourceCode":"\t}\n\n\treturn ListSessionsResponse{Sessions: sessions, NextPageToken: nextPageToken}, nil\n}\n\nfunc (s *Source) GetSession(ctx context.Context, name string) (map[string]any, error) {\n\tclient := s.GetSessionControllerClient()\n\treq := &dataprocpb.GetSessionRequest{\n\t\tName: fmt.Sprintf(\"projects/%s/locations/%s/sessions/%s\", s.GetProject(), s.GetLocation(), name),\n\t}\n\n\tsessionPb, err := client.GetSession(ctx, req)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"failed to get session: %w\", err)\n\t}\n\n\tjsonBytes, err := protojson.Marshal(sessionPb)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"failed to marshal session to JSON: %w\", err)\n\t}\n\n\tvar result map[string]any\n\tif err := json.Unmarshal(jsonBytes, &result); err != nil {\n\t\treturn nil, fmt.Errorf(\"failed to unmarshal session JSON: %w\", err)\n\t}\n\n\tconsoleUrl, err := SessionConsoleURLFromProto(sessionPb)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error generating console url: %v\", err)\n\t}\n\tlogsUrl, err := SessionLogsURLFromProto(sessionPb)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error generating logs url: %v\", err)\n\t}\n\n\twrappedResult := map[string]any{\n\t\t\"consoleUrl\": consoleUrl,","sourceCodeStart":419,"sourceCodeEnd":455,"githubUrl":"https://github.com/googleapis/mcp-toolbox/blob/8cc6e09de2ad7b8bffc77751799585a1401a48eb/internal/sources/serverlessspark/serverlessspark.go#L419-L455","documentation":"protojson.Marshal failed to serialize the fetched Session proto to JSON in GetSession — an internal serialization failure on an unexpected proto state.","triggerScenarios":"Thrown at internal/sources/serverlessspark/serverlessspark.go:437 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Retry the fetch","Inspect the session proto for unsupported field values","Report upstream if reproducible"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"8cc6e09de2ad7b8bffc77751799585a1401a48eb","analyzedAt":"2026-09-05T01:10:36.887Z","contentChangedAt":"2026-09-05T01:10:36.887Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}