fail("Unexpected IOException: " + e.getMessage());
        } catch (ServletException e) {
            assertEquals("Chain ServletException", e.getMessage());
        }
    }

    // Helper method to create mock HttpServletRequest
    private HttpServletRequest createMockHttpServletRequest() {
        return new HttpServletRequest() {
            @Override
            public Object getAttribute(String name) {

            return entity;
        });
    }

    // ===================================================================================
    //                                                                        Small Helper
    //                                                                        ============
    //                                                                              JSP

        response.readParameterWordsWireFormat(buffer, 0);

        // When 0xFFFFFFFF is read as signed int, it becomes -1
        assertEquals(-1L, response.getSize());
    }

    // Helper methods for reflection
    private void setFieldValue(Object obj, String fieldName, Object value) {
        try {
            Field field = findField(obj.getClass(), fieldName);
            field.setAccessible(true);

        packet.length = 10;

        assertThrows(IOException.class, () -> {
            packet.readTrailerWireFormat(emptyStream, new byte[10], 0);
        });
    }

    // Helper class for testing with concrete NetbiosName implementation
    private class TestNetbiosName implements NetbiosName {
        private final String name;
        private final int type;
        private final String scope;

		debugGoCollectorPath: collectors.NewGoCollector(),
	}

	// Add all `MetricGroup` collectors to the map.
	for _, mg := range allMetricGroups {
		collectors[mg.CollectorPath] = mg
	}

	// Helper function to register a collector and return a gatherer for it.
	mustRegister := func(c ...prometheus.Collector) prometheus.Gatherer {
		subRegistry := prometheus.NewRegistry()
		for _, col := range c {

import java.util.concurrent.TimeoutException;
import junit.framework.AssertionFailedError;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * A helper for concurrency testing. One or more {@code TestThread} instances are instantiated in a
 * test with reference to the same "lock-like object", and then their interactions with that object

import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.helper.ActivityHelper;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;

    }

    // ===================================================================================
    //                                                                       Helper Methods
    //                                                                       ==============

    @FunctionalInterface
    private interface LaunchNowCallback {

        Field maxAgeField = CorsHandler.class.getDeclaredField("ACCESS_CONTROL_MAX_AGE");
        assertTrue("ACCESS_CONTROL_MAX_AGE should be final", Modifier.isFinal(maxAgeField.getModifiers()));
    }

    // Helper method to create mock HttpServletRequest
    private HttpServletRequest createMockRequest() {
        return new HttpServletRequest() {
            @Override
            public String getAuthType() {

import org.codelibs.fess.app.service.RequestHeaderService;
import org.codelibs.fess.app.service.WebConfigService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.opensearch.config.exentity.RequestHeader;
import org.codelibs.fess.opensearch.config.exentity.WebConfig;
import org.codelibs.fess.util.ComponentUtil;