e8efcd82a8
Motivation: We can just use Objects.requireNonNull(...) as a replacement for ObjectUtil.checkNotNull(....) Modifications: - Use Objects.requireNonNull(...) Result: Less code to maintain.
46 lines
1.3 KiB
Java
46 lines
1.3 KiB
Java
/*
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* Copyright 2013 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.util.internal;
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import static java.util.Objects.requireNonNull;
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import java.util.Iterator;
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public final class ReadOnlyIterator<T> implements Iterator<T> {
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private final Iterator<? extends T> iterator;
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public ReadOnlyIterator(Iterator<? extends T> iterator) {
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requireNonNull(iterator, "iterator");
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this.iterator = iterator;
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}
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@Override
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public boolean hasNext() {
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return iterator.hasNext();
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}
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@Override
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public T next() {
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return iterator.next();
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}
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@Override
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public void remove() {
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throw new UnsupportedOperationException("read-only");
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}
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}
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