public static final String DATE = "Date";
  /** The HTTP {@code Pragma} header field name. */
  public static final String PRAGMA = "Pragma";
  /** The HTTP {@code Via} header field name. */
  public static final String VIA = "Via";
  /** The HTTP {@code Warning} header field name. */
  public static final String WARNING = "Warning";

  // HTTP Request header fields

  /** The HTTP {@code Accept} header field name. */

    } finally {
      Thread.currentThread().setContextClassLoader(oldClassLoader);
    }

    Thread.currentThread().setContextClassLoader(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
    try {
      runTestMethod(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
      // TODO(lukes): assert that the logs are full of errors
    } finally {
      Thread.currentThread().setContextClassLoader(oldClassLoader);
    }
  }

   * next} field is lazily initialized. The type of that field would be {@code @Nullable T}, and the
   * code would be responsible for populating a "real" {@code T} (which might still be the value
   * {@code null}!) before returning it to callers. Depending on how the code is structured, a
   * nullness analysis might not understand that the field has been populated. To avoid that problem

  // But before Java 9, our only way not to inherit ThreadLocals is to zap them after the thread
  // is created, by accessing a private field.
  @CheckForNull
  private static final Constructor<Thread> bigThreadConstructor = getBigThreadConstructor();

  @CheckForNull
  private static final Field inheritableThreadLocals =
      (bigThreadConstructor == null) ? getInheritableThreadLocalsField() : null;

    }
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testConstants_charset() throws Exception {
    for (Field field : getConstantFields()) {
      Optional<Charset> charset = ((MediaType) field.get(null)).charset();
      if (field.getName().endsWith("_UTF_8")) {
        assertThat(charset).hasValue(UTF_8);
      } else {
        assertThat(charset).isAbsent();
      }
    }
  }

    }
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testConstants_charset() throws Exception {
    for (Field field : getConstantFields()) {
      Optional<Charset> charset = ((MediaType) field.get(null)).charset();
      if (field.getName().endsWith("_UTF_8")) {
        assertThat(charset).hasValue(UTF_8);
      } else {
        assertThat(charset).isAbsent();
      }
    }
  }

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.testing;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.eventbus;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;