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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright (C) 2013 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.CollectPreconditions.checkEntryNotNull;

import com.google.common.annotations.GwtIncompatible;

import javax.annotation.Nullable;

/**
 * Implementation of {@code Map.Entry} for {@link ImmutableMap} that adds extra methods to traverse
 * hash buckets for the key and the value. This allows reuse in {@link RegularImmutableMap} and
 * {@link RegularImmutableBiMap}, which don't have to recopy the entries created by their
 * {@code Builder} implementations.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible("unnecessary")
abstract class ImmutableMapEntry extends ImmutableEntry {
  ImmutableMapEntry(K key, V value) {
    super(key, value);
    checkEntryNotNull(key, value);
  }

  ImmutableMapEntry(ImmutableMapEntry contents) {
    super(contents.getKey(), contents.getValue());
    // null check would be redundant
  }

  @Nullable
  abstract ImmutableMapEntry getNextInKeyBucket();

  @Nullable
  abstract ImmutableMapEntry getNextInValueBucket();

  static final class TerminalEntry extends ImmutableMapEntry {
    TerminalEntry(ImmutableMapEntry contents) {
      super(contents);
    }

    TerminalEntry(K key, V value) {
      super(key, value);
    }

    @Override
    @Nullable
    ImmutableMapEntry getNextInKeyBucket() {
      return null;
    }

    @Override
    @Nullable
    ImmutableMapEntry getNextInValueBucket() {
      return null;
    }
  }
}