@Nullable AtomicHelper tryMakeVarHandleAtomicHelper() {
        try {
          /*
           * We first use reflection to check whether VarHandle exists. If we instead just tried to
           * load our class directly (which would trigger non-reflective loading of VarHandle) from
           * within a `try` block, then an error might be thrown even before we enter the `try`

public class DefaultQueryBuilderTest extends UnitFessTestCase {
    public void test_invalid_null() {
        try {
            new DefaultQueryBuilder(null);
            fail();
        } catch (IllegalArgumentException e) {
            // nothing
        }
    }

    public void test_invalid_query() {
        try {
            new DefaultQueryBuilder(QueryBuilders.matchAllQuery());
            fail();

# does not have "python", "core" directories. Then, it will be copied
# to tensorflow/ which does have these two directories.
try:
  del python
except NameError:
  pass
try:
  del core
except NameError:
  pass
try:
  del compiler
except NameError:
  pass

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.filter.UrlFilter#addExclude(java.lang.String)
     */
    @Override
    public void addExclude(final String urlPattern) {
        try {
            Pattern.compile(urlPattern);
        } catch (final Exception e) {
            if (logger.isWarnEnabled()) {
                logger.warn("Invalid exclude pattern: {}", urlPattern);
            }

     * only. Natrually the <code>jcifs.netbios.nameserver</code> property must
     * be set.
     */

    public static final int P_NODE = 1;

    /**
     * Try Broadcast queries first, then try to resolve the name using the
     * nameserver.
     */

    public static final int M_NODE = 2;

    /**
     * A Hybrid node tries to resolve a name using the nameserver first. If

    assertThat(e).hasCauseThat().isInstanceOf(InterruptedException.class);
  }

  public void testAwait_countDownLatch_interrupted() {
    Interruptenator interruptenator = new Interruptenator(Thread.currentThread());
    try {
      CountDownLatch latch = new CountDownLatch(1);
      RuntimeException expected =
          assertThrows(RuntimeException.class, () -> GcFinalization.await(latch));
      assertWrapsInterruptedException(expected);

                // Very old unclosed resource - attempt to close it
                AutoCloseable resource = holder.resourceRef.get();
                if (resource != null) {
                    try {
                        log.warn("Auto-closing abandoned resource: {} ({}, age: {} ms)", holder.resourceId, holder.resourceType,
                                holder.getAge());
                        resource.close();

                if (httpStatusCode < 400 || httpStatusCode == 401) {
                    parseTokenPage(tokenPattern, responseParams, entity);
                } else {
                    String content;
                    try {
                        content = new String(InputStreamUtil.getBytes(entity.getContent()), Constants.UTF_8_CHARSET);
                    } catch (final IOException e) {
                        content = e.getMessage();

     */
    public void test_valueOf_invalid() {
        try {
            CrawlerStatus.valueOf("INVALID");
            fail("Should throw IllegalArgumentException for invalid value");
        } catch (IllegalArgumentException e) {
            // Expected
            assertTrue(e.getMessage().contains("INVALID"));
        }

        try {
            CrawlerStatus.valueOf("initializing"); // lowercase

        if (StringUtil.isNotBlank(logFilePath) && isLogFilename(filename)) {
            final Path path = Paths.get(logFilePath, filename);
            return asStream(filename).contentTypeOctetStream().stream(out -> {
                try (InputStream in = Files.newInputStream(path)) {
                    out.write(in);
                }
            });
        }