* governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.io.File;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.exec;

import java.io.File;
import java.lang.reflect.Method;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.crawler.client.FesenClient;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.concurrent.atomic.AtomicBoolean;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.service.CrawlingInfoService;
import org.codelibs.fess.app.service.PathMappingService;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.Constants;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.entity.FacetInfo;
import org.codelibs.fess.entity.FacetQueryView;
import org.codelibs.fess.entity.HighlightInfo;

import java.io.File;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.codelibs.core.crypto.CachedCipher;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.entity.SearchRequestParams.SearchRequestType;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;

    private void setupMockComponents() {
        try {
            // Register mock system properties
            File propFile = File.createTempFile("test", ".properties");
            org.codelibs.core.io.FileUtil.writeBytes(propFile.getAbsolutePath(), new byte[0]);
            propFile.deleteOnExit();
            DynamicProperties mockProperties = new DynamicProperties(propFile) {
                @Override

 */
package org.codelibs.fess.helper;

import java.io.File;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.service.DataConfigService;
import org.codelibs.fess.app.service.FileConfigService;

**Resource Management**: `AutoCloseable` throughout, `DeferredFileOutputStream` for large responses, connection pooling, background temp file deletion via `FileUtil.deleteInBackground()`

**Fault Tolerance**: `FaultTolerantClient` wrapper (retry, circuit breaker), `SwitchableHttpClient` for HTTP client fallback

---

## Key Components

### Core Classes

        designJspFile.getParentFile().mkdirs();
        FileUtil.writeBytes(designJspFile.getAbsolutePath(), "ok".getBytes());
        fileList = systemHelper.refreshDesignJspFiles();
        assertEquals(1, fileList.size());
        assertEquals("ok", FileUtil.readText(fileList.get(0).toFile()));
    }

    @Test
    public void test_updateSystemProperties() {