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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS 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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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2019 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 org.wildfly.common.iteration;

import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;

/**
 * Used for iterating over an series of iterables, thus avoiding the need to allocate/populate a new list containing all elements.
 * More efficient than the alternative when the number of iterables is arbitrary and small relative to the size of each iterable.
 * @author Paul Ferraro
 */
public class CompositeIterable implements Iterable {

    private final List> iterables;

    /**
     * Constructs a new composite iterable.
     * @param iterables a series of iterables
     */
    @SafeVarargs
    public CompositeIterable(Iterable... iterables) {
        this(Arrays.asList(iterables));
    }

    /**
     * Constructs a new composite iterable.
     * @param iterables a series of iterables
     */
    public CompositeIterable(List> iterables) {
        this.iterables = iterables;
    }

    @Override
    public Iterator iterator() {
        List> iterators = new ArrayList<>(this.iterables.size());
        for (Iterable elements : this.iterables) {
            iterators.add(elements.iterator());
        }
        return new CompositeIterator<>(iterators);
    }

    @Override
    public int hashCode() {
        int result = 1;
        for (Iterable elements : this.iterables) {
            for (T element : elements) {
                result = 31 * result + ((element != null) ? element.hashCode() : 0);
            }
        }
        return result;
    }

    @Override
    public boolean equals(Object object) {
        if (!(object instanceof Iterable)) return false;
        @SuppressWarnings("unchecked")
        Iterator