assertThat(ClassLoaderUtil.getClassLoader(TestCase.class), is(sameInstance(cl)));
        } finally {
            Thread.currentThread().setContextClassLoader(context);
        }
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetResources() throws Exception {
        final String name = TestCase.class.getName().replace('.', '/') + ".class";

    TestSuite suite = new TestSuite(AbstractFutureFallbackAtomicHelperTest.class.getName());
    for (Method method : AbstractFutureTest.class.getDeclaredMethods()) {
      if (Modifier.isPublic(method.getModifiers()) && method.getName().startsWith("test")) {
        suite.addTest(
            TestSuite.createTest(AbstractFutureFallbackAtomicHelperTest.class, method.getName()));
      }
    }
    return suite;
  }

  @Override

import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link AbstractFuture} with the cancellation cause system property set */
@AndroidIncompatible // custom classloading

@NullUnmarked
public class AbstractFutureCancellationCauseTest extends TestCase {

  private ClassLoader oldClassLoader;
  private URLClassLoader classReloader;

import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link AbstractFuture} with the cancellation cause system property set */
@AndroidIncompatible // custom classloading

@NullUnmarked
public class AbstractFutureCancellationCauseTest extends TestCase {

  private ClassLoader oldClassLoader;
  private URLClassLoader classReloader;

    private static boolean isAllDigits(final String hostname) {
        for (int i = 0; i < hostname.length(); i++) {
            if (!Character.isDigit(hostname.charAt(i))) {
                return false;
            }
        }
        return true;
    }

    @Override
    public UniAddress getByName(final String hostname) throws UnknownHostException {
        return getByName(hostname, false);
    }

    @Override

import java.io.InputStream;

import junit.framework.TestCase;

import org.codelibs.core.lang.StringUtil;

/**
 * @author higa
 *
 */
public class InputStreamUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testGetBytes() throws Exception {
        final InputStream is = ResourceUtil.getResourceAsStream(StringUtil.replace(getClass().getName(), ".", "/") + ".class");
        try {

        assertEquals("0.0.0.0", unknownName.getName(), "Unknown name should be 0.0.0.0");
    }

    @Test
    @DisplayName("Should handle null hostname in getByName")
    void testGetByNameWithNull() {
        // When/Then
        assertThrows(UnknownHostException.class, () -> {
            nameServiceClient.getByName(null);
        }, "Should throw UnknownHostException for null hostname");
    }

    @Test

    super(method.getName());
    this.factory = checkNotNull(factory);
    this.data = checkNotNull(data);
    this.expected = checkNotNull(factory.getExpected(data));
    this.suiteName = checkNotNull(suiteName);
    this.caseDesc = checkNotNull(caseDesc);
  }

  @Override
  public String getName() {
    return super.getName() + " [" + suiteName + " [" + caseDesc + "]]";
  }

            if (profileProp != null) {
                ActivationProperty prop = new ActivationProperty();

                prop.setName(profileProp.getName());
                prop.setValue(profileProp.getValue());

                activation.setProperty(prop);
            }

            ActivationOS profileOs = profileActivation.getOs();

        assertEquals(file, file2);
        final File junitJar = ResourceUtil.getBuildDir(TestCase.class);
        assertTrue(junitJar.exists());
        final URL url = junitJar.toURI().toURL();
        final URLClassLoader loader = new URLClassLoader(new URL[] { url });
        loader.loadClass(TestCase.class.getName());
    }

    /**
     * @throws Exception
     */
    public void testIsExist() throws Exception {