assertThrows(
        ConcurrentModificationException.class,
        () -> {
          Iterator<V> iterator = getMap().values().iterator();
          put(e3());
          iterator.next();
        });
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  public void testPut_unsupportedNotPresent() {
    assertThrows(UnsupportedOperationException.class, () -> put(e3()));
    expectUnchanged();

     */
    public void testGetResourceAsStreamNoException() throws Exception {
        assertNotNull(ResourceUtil.getResourceAsStreamNoException("java/lang/String.class", "class"));
        assertNull(ResourceUtil.getResourceAsStreamNoException("java/lang/String2.class", "class"));
    }

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

/**
 * Exception that wraps {@link InvocationTargetException}.
 *
 * @author higa
 */
public class InvocationTargetRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = 7760491787158046906L;

    /**
     * The target class.
     */
    private final Class<?> targetClass;

    /**
     * Creates a {@link InvocationTargetRuntimeException}.
     *

     * @param clazz
     *            The class. Must not be {@literal null}.
     * @return The resource path.
     */
    public static String getResourcePath(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        return clazz.getName().replace('.', '/') + ".class";
    }

    /**
     * Returns the context class loader.
     *
     * @return the context class loader
     */

        void testImplementationsAreAllocInfo() {
            assertTrue(AllocInfo.class.isAssignableFrom(SmbInfoAllocation.class));
            assertTrue(AllocInfo.class.isAssignableFrom(FileFsSizeInformation.class));
            assertTrue(AllocInfo.class.isAssignableFrom(FileFsFullSizeInformation.class));
        }

        @Test
        @DisplayName("Should verify correct interface hierarchy")

        // Any PACDecodingException is acceptable for this test
        assertNotNull(e.getMessage());
    }

    @Test
    void testTooSmallPac() {
        // Test that PAC smaller than 8 bytes is rejected
        byte[] smallData = new byte[4];

        PACDecodingException e = assertThrows(PACDecodingException.class, () -> new Pac(smallData, keys));

    future.cancel(true);
    assertThrows(CancellationException.class, () -> getUnchecked(future));
  }

  public void testGetUnchecked_executionExceptionChecked() {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_CHECKED_EXCEPTION));
    assertThat(expected).hasCauseThat().isEqualTo(CHECKED_EXCEPTION);

    future.cancel(true);
    assertThrows(CancellationException.class, () -> getUnchecked(future));
  }

  public void testGetUnchecked_executionExceptionChecked() {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_CHECKED_EXCEPTION));
    assertThat(expected).hasCauseThat().isEqualTo(CHECKED_EXCEPTION);

        h.release();
        verify(tree, never()).send(isA(Smb2CloseRequest.class), any());
        verify(tree, never()).send(any(CommonServerMessageBlockRequest.class), any(SmbComBlankResponse.class), any(RequestParam[].class));

        // Second release: should close now via SMB2 path
        h.release();
        verify(tree, times(1)).send(isA(Smb2CloseRequest.class), eq(RequestParam.NO_RETRY));
        verify(tree, times(1)).release();
    }

==================================

Layout and Syntax
-----------------

CI is run by Jenkins at [elasticsearch-ci](https://elasticsearch-ci.elastic.co/).
Jobs live in the [jobs.t](jobs.t) directory, these are defined in YML using a syntax 
simmilar to [JJB](https://elasticsearch-ci.elastic.co/view/Elasticsearch%20master/).
Macros are not allowed, and each job must be defined in its own file.