assertSame(in, out);
    } else {
      assertEquals(expected, out);
    }
  }

  // Test collapse() a little differently than the rest, as we really want to
  // cover lots of different configurations of input text
  public void testCollapse() {
    // collapsing groups of '-' into '_' or '-'
    doTestCollapse("-", "_");
    doTestCollapse("x-", "x_");
    doTestCollapse("-x", "_x");

 *
 * <p>The caches produced by {@code CacheBuilder} are serializable, and the deserialized caches
 * retain all the configuration properties of the original cache. Note that the serialized form does
 * <i>not</i> include cache contents, but only configuration.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/CachesExplained">caching</a> for a higher-level

import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.codehaus.plexus.configuration.DefaultPlexusConfiguration;
import org.codehaus.plexus.configuration.PlexusConfiguration;
import org.codehaus.plexus.configuration.PlexusConfigurationException;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
import org.eclipse.aether.RepositorySystemSession;

     * Fully equivalent to {@code setConfiguration(configuration, null)}.
     *
     * @param configuration The configuration to unmarshal, may be {@code null}.
     * @return This request for chaining, never {@code null}.
     */
    BeanConfigurationRequest setConfiguration(Object configuration);

    /**
     * Sets the configuration to unmarshal into the bean. The configuration should be taken from

    }

    /**
     * The key that can must used to identify the configuration using the
     * {@link javax.inject.Named} annotation.
     */
    public String getKey() {
        return key;
    }

    /**
     * Returns the configuration for this extension.
     */
    public XmlNode getConfiguration() {
        return configuration;
    }

    String HTTP_PROXY_HOST = "http.proxy.host";

    /** The key of the configuration. e.g. 8080 */
    String HTTP_PROXY_PORT = "http.proxy.port";

    /** The key of the configuration. e.g.  */
    String HTTP_PROXY_USERNAME = "http.proxy.username";

    /** The key of the configuration. e.g.  */
    String HTTP_PROXY_PASSWORD = "http.proxy.password";

    /** The key of the configuration. e.g. 262144000 */

        Set<File> classpath = new HashSet<>();
        for (FilterConfiguration configuration : getIncludeFilters().getOrElse(Collections.emptyList())) {
            addClasspathFor(configuration.getFilterClass(), classpath);
        }
        for (FilterConfiguration configuration : getExcludeFilters().getOrElse(Collections.emptyList())) {
            addClasspathFor(configuration.getFilterClass(), classpath);
        }

        assertEquals("one", pom.getValue("build/plugins[1]/configuration/stringParams/stringParam[1]"));
        assertEquals("two", pom.getValue("build/plugins[1]/configuration/stringParams/stringParam[2]"));
        assertEquals("three", pom.getValue("build/plugins[1]/configuration/stringParams/stringParam[3]"));
        assertEquals("four", pom.getValue("build/plugins[1]/configuration/stringParams/stringParam[4]"));
    }

    /* MNG-3827*/

    private final CredentialsInternal defaultCredentials;


    /**
     * Construct a context
     * 
     * @param config
     *            configuration for the context
     * 
     */
    public BaseContext ( Configuration config ) {
        this.config = config;
        this.dfs = new DfsImpl(this);
        this.sidResolver = new SIDCacheImpl(this);
        this.urlHandler = new Handler(this);

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.configuration;

import javax.xml.stream.XMLStreamException;

import java.io.File;
import java.io.StringReader;
import java.nio.file.Path;
import java.nio.file.Paths;

import org.apache.maven.configuration.internal.DefaultBeanConfigurator;
import org.apache.maven.internal.xml.XmlNodeStaxBuilder;