## OAuth2 { #oauth2 }

OAuth2 is a specification that defines several ways to handle authentication and authorization.

It is quite an extensive specification and covers several complex use cases.

It includes ways to authenticate using a "third party".

That's what all the systems with "login with Facebook, Google, X (Twitter), GitHub" use underneath.

 * determine addressability of any host, clients of this class will need to perform their own DNS
 * lookups.
 *
 * <p>During construction, names are normalized in two ways:
 *
 * <ol>
 *   <li>ASCII uppercase characters are converted to lowercase.
 *   <li>Unicode dot separators other than the ASCII period ({@code '.'}) are converted to the ASCII
 *       period.
 * </ol>
 *

import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.AbstractMapTester;
import com.google.common.collect.testing.features.CollectionFeature;

 * limitations under the License.
 */

package com.google.common.collect.testing.testers;

import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**

 * <pre>
 * public class CustomLifecycleProvider implements LifecycleProvider {
 *     public Collection&lt;Lifecycle&gt; provides() {
 *         return Collections.singleton(
 *             lifecycle("deploy-docker", Arrays.asList(
 *                 "build-image",
 *                 "tag-image",
 *                 "push-image"
 *             ))
 *         );
 *     }
 * }
 * </pre>
 *
 * @see org.apache.maven.api.Lifecycle

 * <p>
 * Example usage:
 * <pre>
 * public class CustomTypeProvider implements TypeProvider {
 *     public Collection&lt;Type&gt; provides() {
 *         return Arrays.asList(
 *             type("kotlin-library", "jar", "kotlin"),
 *             type("docker-image", "tar.gz", null)
 *         );
 *     }
 * }
 * </pre>
 *
 * @see org.apache.maven.api.Type

# MSYS attempts to use non-cmd versions, which aren't meant for Windows
RUN Add-Content -Path C:\tools\msys64\.bashrc -Value 'alias gcloud=gcloud.cmd'
RUN Add-Content -Path C:\tools\msys64\.bashrc -Value 'alias gsutil=gsutil.cmd'
RUN Add-Content -Path C:\tools\msys64\.bashrc -Value 'alias bq=bq.cmd'

# Symlink a directory, to have it pretend be the T:\ drive.
# This drive letter is used by internal CI,

import com.google.common.collect.testing.testers.MapSizeTester;
import com.google.common.collect.testing.testers.MapToStringTester;
import com.google.common.testing.SerializableTester;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestSuite;

/**

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import jcifs.internal.util.SMBUtil;

/**
 * Test class for ValidateNegotiateInfoRequest

import static java.lang.reflect.Modifier.isPublic;
import static java.lang.reflect.Modifier.isStatic;
import static java.nio.charset.StandardCharsets.UTF_16;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Function;