})
        }

        @Throws(IOException::class)
        private
        fun processEntry(zipEntry: ZipEntry, builder: Trie.Builder) {
            val name = zipEntry.name
            if (name.endsWith(".class")) {
                processClassFile(zipEntry, builder)
            }
        }

        @Throws(IOException::class)
        private

    result = 31 * result + extensions.hashCode()
    return result
  }
}

internal data class AlgorithmIdentifier(
  /** An OID string like "1.2.840.113549.1.1.11" for sha256WithRSAEncryption. */
  val algorithm: String,
  /** Parameters of a type implied by [algorithm]. */
  val parameters: Any?,
)

internal data class AttributeTypeAndValue(
  /** An OID string like "2.5.4.11" for organizationalUnitName. */

 * overriding [.configureSocket].
 */
open class DelegatingSocketFactory(
  private val delegate: SocketFactory,
) : SocketFactory() {
  @Throws(IOException::class)
  override fun createSocket(): Socket {
    val socket = delegate.createSocket()
    return configureSocket(socket)
  }

  @Throws(IOException::class)
  override fun createSocket(
    host: String,
    port: Int,
  ): Socket {

    tester.testConstructors(PatternFilenameFilter.class, Visibility.PACKAGE);
    tester.testStaticMethods(PatternFilenameFilter.class, Visibility.PACKAGE); // currently none

    // The reason that we skip this method is discussed in a comment on the method.
    tester.ignore(PatternFilenameFilter.class.getMethod("accept", File.class, String.class));

 */
package gradlebuild.binarycompatibility

import org.junit.Test


class KotlinNullabilityChangesTest : AbstractBinaryCompatibilityTest() {

    @Test
    fun `from non-null returning to null returning is breaking`() {

        checkNotBinaryCompatibleKotlin(
            v1 = """
                class Source {
                    val someVal: String = "some"
                    var someVar: String = "some"

@GwtIncompatible
@J2ktIncompatible
@NullMarked
abstract class DummyProxy {

  /**
   * Returns a new proxy for {@code interfaceType}. Proxies of the same interface are equal to each
   * other if the {@link DummyProxy} instance that created the proxies are equal.
   */
  final <T> T newProxy(TypeToken<T> interfaceType) {
    Set<Class<?>> interfaceClasses = new LinkedHashSet<>();

 * @author Ben Yu
 */
@NullUnmarked
public class TypeVisitorTest extends TestCase {

  public void testVisitNull() {
    new BaseTypeVisitor()
        .visit(((ParameterizedType) ArrayList.class.getGenericSuperclass()).getOwnerType());
  }

  public void testVisitClass() {
    assertVisited(String.class);
    new BaseTypeVisitor() {
      @Override
      void visitClass(Class<?> t) {}
    }.visit(String.class);
  }

    assertThrows(UnsupportedOperationException.class, () -> map.subMap("a", "z").keySet().add("a"));
    assertThrows(UnsupportedOperationException.class, () -> map.tailMap("a").keySet().add("a"));
    assertThrows(UnsupportedOperationException.class, () -> map.headMap("r").keySet().add("a"));
    assertThrows(
        UnsupportedOperationException.class, () -> map.headMap("r").tailMap("m").keySet().add("a"));
  }

    assertFalse(future.isCancelled());
    assertThrows(TimeoutException.class, () -> future.get(0, MILLISECONDS));
    nested.set("foo");
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertThat(future.get()).isEqualTo("foo");
  }

  private static class Foo {}

  private static class FooChild extends Foo {}

  public void testSetFuture_genericsHierarchy() throws Exception {

import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Base class for tests for emulated {@link AbstractFuture} that allow subclasses to swap in a
 * different "source Future" for {@link AbstractFuture#setFuture} calls.
 */
@GwtCompatible
@NullUnmarked
abstract class AbstractAbstractFutureTest extends TestCase {
  @SuppressWarnings("initialization.field.uninitialized")