try {
            // Test that system property takes precedence
            String value = fessConfig.get(testKey);
            assertEquals(systemValue, value);
        } finally {
            // Clean up system property
            System.clearProperty(Constants.FESS_CONFIG_PREFIX + testKey);
        }
    }

    // Test caching mechanism
    @Test
    public void test_get_caching() {

                    tasks = "clean :distributions-full:install"
                    gradleParams =
                        "-Pgradle_installPath=dogfood-first -PignoreIncomingBuildReceipt=true -PbuildTimestamp=$dogfoodTimestamp1 $defaultParameters"
                }

                localGradle {
                    name = "BUILD_WITH_BUILT_GRADLE"
                    tasks = "clean :distributions-full:install"

        refresh();
    }

    @AfterAll
    protected static void tearDownAll() {
        // Clean up failure URL logs
        final Map<String, Object> requestBody = new HashMap<>();
        requestBody.put("size", 1000);
        checkMethodBase(requestBody).delete(API_PATH + "/all");
        refresh();

        // Clean up job logs
        final List<Map<String, Object>> jobLogList = readJobLog(NAME_PREFIX);

        // Test with null regex
        cmdList.clear();
        execJob.testAddFessCustomSystemProperties(cmdList, null);
        assertEquals(0, cmdList.size());

        // Test with empty regex
        cmdList.clear();
        execJob.testAddFessCustomSystemProperties(cmdList, "");
        assertEquals(0, cmdList.size());

        // Clean up
        System.clearProperty("custom.prop.one");

mvn dbflute:freegen     # Generate DBFlute source code
mvn license:format      # Add license headers
```

### Build
```bash
mvn package             # Standard build
mvn clean package       # Clean build
mvn rpm:rpm             # Build .rpm package
mvn jdeb:jdeb           # Build .deb package
```

### Testing
```bash
mvn test                                    # Run unit tests (*Test.java)

        c.get("/openapi.json")

    # A clean request should not have any of them
    clean_client = TestClient(app)
    response = clean_client.get("/openapi.json")
    data = response.json()
    servers = [s.get("url") for s in data.get("servers", [])]
    for prefix in ["/path-a", "/path-b", "/path-c"]:
        assert prefix not in servers, (
            f"root_path '{prefix}' leaked into clean request: {servers}"
        )

ml_models = {}


@asynccontextmanager
async def lifespan(app: FastAPI):
    # Load the ML model
    ml_models["answer_to_everything"] = fake_answer_to_everything_ml_model
    yield
    # Clean up the ML models and release the resources
    ml_models.clear()


app = FastAPI(lifespan=lifespan)


@app.get("/predict")
async def predict(x: float):
    result = ml_models["answer_to_everything"](x)

fun String.toCamelCase() = lowercase().replace(Regex("_[a-z]")) { it.value[1].uppercase() }

/**
 * Define clean up rules for the project.
 * See https://www.jetbrains.com/help/teamcity/teamcity-data-clean-up.html#Clean-up+Rules
 *
 * @param historyDays days number of days to store build history .

                "-Dscan.tag.PerformanceTest",
            )

        assertEquals(
            (
                listOf(
                    "clean",
                    ":performance:largeTestProjectPerformanceTest",
                    ":performance:smallTestProjectPerformanceTest",
                    "extraParameters",
                ) + expectedRunnerParams

# Install various tools.
# - bats: bash unit testing framework
# - bazelisk: always use the correct bazel version
# - buildifier: clean bazel build deps
# - buildozer: clean bazel build deps
# - gcloud SDK: communicate with Google Cloud Platform (GCP) for RBE, CI
# - patchelf: Utility tool to modify existing ELF executables and libraries