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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) 2012 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.base.Preconditions.checkArgument;

import com.google.common.annotations.GwtCompatible;

import java.io.Serializable;
import java.util.EnumMap;
import java.util.Iterator;

import javax.annotation.Nullable;

/**
 * Implementation of {@link ImmutableMap} backed by a non-empty {@link
 * java.util.EnumMap}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible(serializable = true, emulated = true)
@SuppressWarnings("serial") // we're overriding default serialization
final class ImmutableEnumMap, V> extends ImmutableMap {
  static , V> ImmutableMap asImmutable(EnumMap map) {
    switch (map.size()) {
      case 0:
        return ImmutableMap.of();
      case 1: {
        Entry entry = Iterables.getOnlyElement(map.entrySet());
        return ImmutableMap.of(entry.getKey(), entry.getValue());
      }
      default:
        return new ImmutableEnumMap(map);
    }
  }

  private transient final EnumMap delegate;

  private ImmutableEnumMap(EnumMap delegate) {
    this.delegate = delegate;
    checkArgument(!delegate.isEmpty());
  }

  @Override
  ImmutableSet createKeySet() {
    return new ImmutableSet() {

      @Override
      public boolean contains(Object object) {
        return delegate.containsKey(object);
      }

      @Override
      public int size() {
        return ImmutableEnumMap.this.size();
      }

      @Override
      public UnmodifiableIterator iterator() {
        return Iterators.unmodifiableIterator(delegate.keySet().iterator());
      }

      @Override
      boolean isPartialView() {
        return true;
      }
    };
  }

  @Override
  public int size() {
    return delegate.size();
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    return delegate.containsKey(key);
  }

  @Override
  public V get(Object key) {
    return delegate.get(key);
  }

  @Override
  ImmutableSet> createEntrySet() {
    return new ImmutableMapEntrySet() {

      @Override
      ImmutableMap map() {
        return ImmutableEnumMap.this;
      }

      @Override
      public UnmodifiableIterator> iterator() {
        return new UnmodifiableIterator>() {
          private final Iterator> backingIterator = delegate.entrySet().iterator();

          @Override
          public boolean hasNext() {
            return backingIterator.hasNext();
          }

          @Override
          public Entry next() {
            Entry entry = backingIterator.next();
            return Maps.immutableEntry(entry.getKey(), entry.getValue());
          }
        };
      }
    };
  }

  @Override
  boolean isPartialView() {
    return false;
  }

  // All callers of the constructor are restricted to >.
  @Override Object writeReplace() {
    return new EnumSerializedForm(delegate);
  }

  /*
   * This class is used to serialize ImmutableEnumSet instances.
   */
  private static class EnumSerializedForm, V>
      implements Serializable {
    final EnumMap delegate;
    EnumSerializedForm(EnumMap delegate) {
      this.delegate = delegate;
    }
    Object readResolve() {
      return new ImmutableEnumMap(delegate);
    }
    private static final long serialVersionUID = 0;
  }
}