/*
 * Copyright (C) 2014 The Project Lombok Authors.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package lombok.core.configuration;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import lombok.core.configuration.ConfigurationSource.ListModification;
import lombok.core.configuration.ConfigurationSource.Result;

public class BubblingConfigurationResolver implements ConfigurationResolver {
	
	private final List<ConfigurationSource> sources;
	
	public BubblingConfigurationResolver(List<ConfigurationSource> sources) {
		this.sources = sources;
	}
	
	@SuppressWarnings("unchecked") 
	@Override 
	public <T> T resolve(ConfigurationKey<T> key) {
		boolean isList = key.getType().isList();
		List<ListModification> listModifications = null;
		for (ConfigurationSource source : sources) {
			Result<T> result = source.resolve(key);
			if (result == null) continue;
			if (isList) {
				if (listModifications == null) {
					listModifications = new ArrayList<ListModification>((List<ListModification>)result.getValue());
				} else {
					listModifications.addAll(0, (List<ListModification>)result.getValue());
				}
			}
			if (result.isAuthoritative()) {
				if (isList) {
					break;
				}
				return result.getValue();
			}
		}
		if (!isList) {
			return null;
		}
		if (listModifications == null) {
			return (T) Collections.emptyList();
		}
		List<Object> listValues = new ArrayList<Object>();
		for (ListModification modification : listModifications) {
			listValues.remove(modification.getValue());
			if (modification.isAdded()) {
				listValues.add(modification.getValue());
			}
		}
		return (T) listValues;
	}
}

@@ -1472,18 +1472,139 @@
 ate 
-final List
+static final ConfigurationKey%3CBoolean%3E STOP_BUBBLING = new ConfigurationKey%3CBoolean%3E(%22stop-bubbling%22) %7B%7D;%0A%09%0A%09private final Iterable
 %3CCon
@@ -1670,20 +1670,24 @@
 esolver(
-List
+Iterable
 %3CConfigu
@@ -1773,17 +1773,16 @@
 hecked%22)
- 
 %0A%09@Overr
@@ -1784,17 +1784,16 @@
 Override
- 
 %0A%09public
@@ -2409,24 +2409,149 @@
 lue();%0A%09%09%09%7D%0A
+%09%09%09Result%3CBoolean%3E stop = source.resolve(STOP_BUBBLING);%0A%09%09%09if (stop != null && Boolean.TRUE.equals(stop.getValue())) break;%0A
 %09%09%7D%0A%09%09if (!i

Add option 'stop-bubbling=true' to a lombok.config file to prevent the system from going up the directory tree to find more config files