well defined data structure. To understand `xl.meta` here are the few things to start with

`xl.meta` carries first 8 bytes an XL header which describes the current format and the format version,
allowing the unmarshaller's to automatically use the right data structures to parse the subsequent content in the stream.

### v1.0

| Entry     | Encoding    | Content

import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code lastIndexOf()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code indexOf()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

     *            context to use
     * @param type2
     *            The Type-2 message which this represents a response to.
     * @param targetName
     *            SPN of the target system, optional
     * @param password
     *            The password to use when constructing the response.
     * @param domain
     *            The domain in which the user has an account.
     * @param user

  /**
   * Value of {@link #publicSuffixIndex()} or {@link #registrySuffixIndex()} which indicates that no
   * relevant suffix was found.
   */
  private static final int NO_SUFFIX_FOUND = -1;

  /**
   * Value of {@link #publicSuffixIndexCache} or {@link #registrySuffixIndexCache} which indicates
   * that they were not initialized yet.
   */
  private static final int SUFFIX_NOT_INITIALIZED = -2;

  public static void testSubtypeOfStaticAnonymousClass() {
    Class<?> superclass = new Mall<Outdoor>().new Shop<Electronics>() {}.getClass();
    assertTrue(TypeToken.of(superclass).isSubtypeOf(superclass));
    assertFalse(
        TypeToken.of(new Mall<Outdoor>().new Shop<Electronics>() {}.getClass())
            .isSubtypeOf(superclass));
  }

 * states it cannot ever leave them.
 *
 * <p>Implementors of this interface are strongly encouraged to extend one of the abstract classes
 * in this package which implement this interface and make the threading and state management
 * easier.
 *
 * @author Jesse Wilson
 * @author Luke Sandberg
 * @since 9.0 (in 1.0 as {@code com.google.common.base.Service})
 */

          <defaultValue>true</defaultValue>
        </field>
        <field>
          <name>requiredJavaVersion</name>
          <version>1.1.0+</version>
          <description>
            A version range which specifies the supported Java versions. A version range can either use the usual mathematical syntax "[2.0.10,2.1.0),[3.0,)" or use a single version "2.2.1". The latter is a short form for "[2.2.1,)", i.e. denotes the minimum version required.

		// match should contain at least two elements if the protocol was
		// specified in the Forwarded header. The first element will always be
		// the 'for=', which we ignore, subsequently we proceed to look for
		// 'proto=' which should precede right after `for=` if not
		// we simply ignore the values and return empty. This is in line
		// with the approach we took for returning first ip from multiple
		// params.

/**
 * A bimap (or "bidirectional map") is a map that preserves the uniqueness of its values as well as
 * that of its keys. This constraint enables bimaps to support an "inverse view", which is another
 * bimap containing the same entries as this bimap but with reversed keys and values.
 *
 * <h3>Implementations</h3>
 *
 * <ul>
 *   <li>{@link ImmutableBiMap}
 *   <li>{@link HashBiMap}