*
         * @return A processed string with terms and spaces, or an empty string if the reader is null or an IOException occurs.
         */
        public String execute() {
            if (reader == null) {
                return StringUtil.EMPTY;
            }
            final StringBuilder buf = new StringBuilder(initialCapacity);
            boolean isSpace = false;

    }

    /**
     * Test validateInputStream with edge case: empty stream.
     */
    public void test_validateInputStream_acceptsEmptyStream() {
        final InputStream emptyStream = new ByteArrayInputStream(new byte[0]);

        // Should not throw exception for empty but non-null stream
        extractor.testValidateInputStream(emptyStream);
    }

    /**

     * ability to throw the correct exception in the future.
     */
    assertThrows(NoSuchElementException.class, empty::peek);
    assertThrows(NoSuchElementException.class, empty::peek);
  }

  public void testSneakyThrow() throws Exception {
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          boolean haveBeenCalled;

  }

  /**
   * Returns an empty immutable range map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of() {
    return (ImmutableRangeMap<K, V>) EMPTY;
  }

  /** Returns an immutable range map mapping a single range to a single value. */

		if bucket == "" {
			return errors.New("bucket name cannot be empty")
		}

		return clnt.RemoveObject(context.Background(), bucket, object, minio.RemoveObjectOptions{})

	case "Mkdir":
		bucket, prefix := path2BucketObject(r.Filepath)
		if bucket == "" {
			return errors.New("bucket name cannot be empty")
		}

		if prefix == "" {

	d, err := config.getDriver(ctx, tier)
	if err != nil {
		return err
	}
	return checkWarmBackend(ctx, d)
}

// Empty returns if tier targets are empty
func (config *TierConfigMgr) Empty() bool {
	if config == nil {
		return true
	}
	return len(config.ListTiers()) == 0
}

// TierType returns the type of tier

    /**
     * Decodes MIME-encoded text.
     *
     * @param value the encoded text to decode
     * @return the decoded text or empty string if decoding fails
     */
    protected String getDecodeText(final String value) {
        if (value == null) {
            return StringUtil.EMPTY;
        }
        try {
            return MimeUtility.decodeText(value);
        } catch (final UnsupportedEncodingException e) {

import java.util.Set;
import java.util.concurrent.ExecutionException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * {@link LoadingCache} tests that deal with empty caches.
 *
 * @author mike nonemacher
 */

@NullUnmarked
public class EmptyCachesTest extends TestCase {

  public void testEmpty() {
    for (LoadingCache<Object, Object> cache : caches()) {

import java.util.Set;
import java.util.concurrent.ExecutionException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * {@link LoadingCache} tests that deal with empty caches.
 *
 * @author mike nonemacher
 */

@NullUnmarked
public class EmptyCachesTest extends TestCase {

  public void testEmpty() {
    for (LoadingCache<Object, Object> cache : caches()) {

            String line = null;
            while ((line = reader.readLine()) != null) {
                // Remove comments
                final String replacedLine = line.replaceAll("#.*$", StringUtil.EMPTY).trim();

                // Skip empty lines or comment lines
                if (replacedLine.length() == 0) {
                    if (updater != null) {
                        updater.write(line);
                    }