From 9cbfcf90585fcea227a14ef44e50d7e2ba320db5 Mon Sep 17 00:00:00 2001
From: "codeflash-ai[bot]"
 <148906541+codeflash-ai[bot]@users.noreply.github.com>
Date: Tue, 31 Mar 2026 06:21:57 +0000
Subject: [PATCH] Optimize JavaSupport.setup_test_config
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The optimization adds a per-instance `_config_cache` dictionary keyed by project root path, replacing a naive call to `detect_java_project` on every invocation of `setup_test_config`. Line profiler shows the original spent 97% of its 76.8 ms in `detect_java_project` (which scans filesystem, parses XML/Gradle files, and searches test sources for imports); with caching, only the first call per unique project_root pays that cost (14.6 ms) while subsequent hits resolve in ~6.3 µs via dictionary lookup. Across 3219 calls spanning ~622 distinct projects, this yields a 171% speedup (24.8 ms → 9.15 ms). Tests do regress by 22–36% because mocking prevents cache hits, but in production workflows where the same project is analyzed repeatedly the cache dominates.
---
 codeflash/languages/java/support.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/codeflash/languages/java/support.py b/codeflash/languages/java/support.py
index ab3818348..4b12874e8 100644
--- a/codeflash/languages/java/support.py
+++ b/codeflash/languages/java/support.py
@@ -68,6 +68,8 @@ def __init__(self) -> None:
         self._language_version: str | None = None
         self._test_framework: str = "junit5"
 
+        self._config_cache: dict[Path, Any] = {}
+
     @property
     def language(self) -> Language:
         """The language this implementation supports."""
@@ -405,7 +407,12 @@ def load_coverage(
 
     def setup_test_config(self, test_cfg: Any, file_path: Path, current_worktree: Path | None = None) -> bool:
         """Detect test framework from project build config (pom.xml / build.gradle)."""
-        config = detect_java_project(test_cfg.project_root_path)
+        project_root = test_cfg.project_root_path
+        try:
+            config = self._config_cache[project_root]
+        except KeyError:
+            config = detect_java_project(project_root)
+            self._config_cache[project_root] = config
         if config is not None:
             self._test_framework = config.test_framework
         return True