1 files changed, 43 insertions, 0 deletions
diff --git a/guava/src/com/google/common/collect/UnmodifiableIterator.java b/guava/src/com/google/common/collect/UnmodifiableIterator.java
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+++ b/guava/src/com/google/common/collect/UnmodifiableIterator.java
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+/*
+ * Copyright (C) 2008 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 com.google.common.annotations.GwtCompatible;
+
+import java.util.Iterator;
+
+/**
+ * An iterator that does not support {@link #remove}.
+ *
+ * @author Jared Levy
+ * @since 2.0 (imported from Google Collections Library)
+ */
+@GwtCompatible
+public abstract class UnmodifiableIterator<E> implements Iterator<E> {
+  /** Constructor for use by subclasses. */
+  protected UnmodifiableIterator() {}
+  
+  /**
+   * Guaranteed to throw an exception and leave the underlying data unmodified.
+   *
+   * @throws UnsupportedOperationException always
+   */
+  @Override
+  public final void remove() {
+    throw new UnsupportedOperationException();
+  }
+}