@Override
  public final boolean hasNext() {
    return nextOrNull != null;
  }

  @Override
  public final T next() {
    if (nextOrNull == null) {
      throw new NoSuchElementException();
    }
    T oldNext = nextOrNull;
    nextOrNull = computeNext(oldNext);
    return oldNext;
  }

        Resources.copy(ClassPathTest.class.getResource(entry), jarOut);
        jarOut.closeEntry();
      }
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  private static Manifest manifest(String content) throws IOException {
    InputStream in = new ByteArrayInputStream(content.getBytes(US_ASCII));
    Manifest manifest = new Manifest();
    manifest.read(in);

                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    throw new CrawlingAccessException(e);
                }
                return null;
            }
        };
        client.setAccessTimeout(1);
        try {
            client.doGet("ftp://localhost/test.txt");

            // Act
            SMBProtocolDecodingException ex = assertThrows(SMBProtocolDecodingException.class, () -> resp.readBytesWireFormat(buffer, 0),
                    "Should throw when structure size != 4");

            // Assert: message is meaningful
            assertEquals("Structure size is not 4", ex.getMessage());
        }

        @Test

            this.shouldSucceed = shouldSucceed;
        }

        @Override
        protected boolean performReconnection(HandleInfo info) throws Exception {
            if (shouldSucceed) {
                return true;
            } else {
                throw new IOException("Simulated reconnection failure");
            }
        }

        public void testCreateReconnectionRequest(HandleInfo handle) {

    }

    @Override
    protected int readBytesWireFormat(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        // StructureSize (2 bytes) - must be 36
        this.structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (this.structureSize != 36) {
            throw new SMBProtocolDecodingException("Invalid lease break response structure size: " + this.structureSize);

            @Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");
              }
              return 25;
            }
          });

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    exec = newCachedThreadPool();

        final GroovyShell groovyShell = new GroovyShell(new Binding(bindingMap));
        try {
            return groovyShell.evaluate(template);
        } catch (final JobProcessingException e) {
            throw e;
        } catch (final Exception e) {
            logger.warn("Failed to evaluate groovy script: {} => {}", template, paramMap, e);
            return null;
        } finally {

import java.io.DataOutput;
import java.io.IOException;

/**
 * An extension of {@code DataOutput} for writing to in-memory byte arrays; its methods offer
 * identical functionality but do not throw {@link IOException}.
 *
 * @author Jayaprabhakar Kadarkarai
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public interface ByteArrayDataOutput extends DataOutput {
  @Override
  void write(int b);

                    "flags should be initialized to DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG");
        } catch (NoSuchFieldException | IllegalAccessException e) {
            throw new RuntimeException("Failed to access protected fields via reflection", e);
        }

        // Since SamrOpenAlias's constructor parameters are not directly exposed via getters in MsrpcSamrOpenAlias,