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package org.codehaus.plexus.interpolation.fixed;

/*
 * Copyright 2014 The Codehaus Foundation.
 *
 * 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.
 */

import org.codehaus.plexus.interpolation.RecursionInterceptor;
import org.codehaus.plexus.interpolation.SimpleRecursionInterceptor;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * AN error collector contains the errors accumulated during an interpolation.
 * It is stateful.
 */
public class InterpolationState
{
    private final List messages = new ArrayList(  );
    private final List causes = new ArrayList(  );

    public void addFeedback( String message, Throwable cause )
    {
        messages.add( message);
        causes.add(cause);
    }

    public List asList(){
        ArrayList