private fun trailersAndCache(protocol: Protocol) {
    enableProtocol(protocol)

    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("h1", "v1")
        .addHeader("Cache-Control: max-age=30")
        .body(protocol, "Hello")
        .trailers(headersOf("t1", "v2"))
        .build(),
    )

    val call1 = client.newCall(Request(server.url("/")))
    call1.execute().use { response ->

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * {@link LoadingCache} tests that deal with caches that actually contain some key-value mappings.
 *
 * @author mike nonemacher
 */

@NullUnmarked
public class PopulatedCachesTest extends TestCase {
  // we use integers as keys; make sure the range covers some values that ARE cached by

)

// startWithConds - map which indicates if a given condition supports starts-with policy operator
var startsWithConds = map[string]bool{
	"$acl":                     true,
	"$bucket":                  false,
	"$cache-control":           true,
	"$content-type":            true,
	"$content-disposition":     true,
	"$content-encoding":        true,
	"$expires":                 true,
	"$key":                     true,

        List<User> deleteCalls = new ArrayList<>();
        List<Map.Entry<String, String>> changePasswordCalls = new ArrayList<>();
        List<User> loadCalls = new ArrayList<>();

        // Control behavior
        boolean updateThrowsException = false;
        boolean deleteThrowsException = false;
        boolean changePasswordThrowsException = false;
        boolean loadThrowsException = false;

     */
    int DELETE = 0x00010000; // 16
    /**
     * Permission to read the security descriptor.
     */
    int READ_CONTROL = 0x00020000; // 17
    /**
     * Permission to write the discretionary access control list.
     */
    int WRITE_DAC = 0x00040000; // 18
    /**
     * Permission to change the owner.
     */
    int WRITE_OWNER = 0x00080000; // 19
    /**
     * Permission to synchronize.
     */

        String result = response.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.contains("TransPeekNamedPipeResponse"));
        // Verify that parent's toString is called (should contain standard fields)
        assertTrue(result.length() > "TransPeekNamedPipeResponse[]".length());
    }

    @Test
    @DisplayName("Multiple instances should be independent")
    void testMultipleInstances() {

	"acl",
	"cors",
	"delete",
	"encryption",
	"legal-hold",
	"lifecycle",
	"location",
	"logging",
	"notification",
	"partNumber",
	"policy",
	"requestPayment",
	"response-cache-control",
	"response-content-disposition",
	"response-content-encoding",
	"response-content-language",
	"response-content-type",
	"response-expires",
	"retention",
	"select",
	"select-type",
	"tagging",

    public void test_setNotAnalyzedFields_withDuplicates() {
        String[] fields = { "field1", "field2", "field1", "field3", "field2" };
        queryFieldConfig.setNotAnalyzedFields(fields);

        // Set should contain unique values only
        assertEquals(3, queryFieldConfig.notAnalyzedFieldSet.size());
        assertTrue(queryFieldConfig.notAnalyzedFieldSet.contains("field1"));

        System.setProperty(Constants.FESS_CONFIG_PREFIX + "test2", "value2");
        System.setProperty("non.fess.property", "value3");

        execJob.testAddFessConfigProperties(cmdList);

        // Should contain only fess.conf properties
        assertEquals(2, cmdList.size());
        assertTrue(cmdList.contains("-D" + Constants.FESS_CONFIG_PREFIX + "test1=value1"));

    // don't check cache.size() until we know the get("b") call is complete
    computationComplete.await();

    // At this point, the listener should be holding the seed value (a -> a), and the map should
    // contain the computed value (b -> b), since the clear() happened before the computation
    // completed.
    assertEquals(1, listener.size());
    RemovalNotification<String, String> notification = listener.remove();