During validation for PR #2757, dotnet test CodeIndex.sln -c Release -p:UseSharedCompilation=false passed net8 but failed net9 with 77 tests reporting System.ObjectDisposedException: Cannot write to a closed TextWriter across unrelated console/MCP test paths such as IndexCommandRunnerTests, McpServerTests, and LegacySchemaMigrationTests. The focused FileIndexer tests passed for both net8 and net9. This appears unrelated to the FileIndexer changes and should be investigated separately.
During validation for PR #2757, dotnet test CodeIndex.sln -c Release -p:UseSharedCompilation=false passed net8 but failed net9 with 77 tests reporting System.ObjectDisposedException: Cannot write to a closed TextWriter across unrelated console/MCP test paths such as IndexCommandRunnerTests, McpServerTests, and LegacySchemaMigrationTests. The focused FileIndexer tests passed for both net8 and net9. This appears unrelated to the FileIndexer changes and should be investigated separately.