import org.apache.maven.model.inheritance.InheritanceAssembler;
import org.apache.maven.model.interpolation.DefaultModelVersionProcessor;
import org.apache.maven.model.interpolation.ModelInterpolator;
import org.apache.maven.model.interpolation.ModelVersionProcessor;
import org.apache.maven.model.interpolation.StringVisitorModelInterpolator;
import org.apache.maven.model.io.DefaultModelReader;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import org.apache.maven.model.interpolation.reflection.ReflectionValueExtractor;
import org.codehaus.plexus.interpolation.AbstractValueSource;

/**
 * Wraps an object, providing reflective access to the object graph of which the

        return this;
    }

    @Override
    public Map<String, String> getSystemProperties() {
        return systemProperties;
    }

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *

 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.util.List;

import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;
import org.codehaus.plexus.interpolation.ValueSource;

/**

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been

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

import java.util.HashSet;
import java.util.Set;

import org.apache.maven.model.path.UrlNormalizer;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;

/**
 * Ensures that expressions referring to URLs evaluate to normalized URLs.
 *

public interface ModelValidator {

    /**
     * Checks the specified (raw) model for missing or invalid values. The raw model is directly created from the POM
     * file and has not been subjected to inheritance, interpolation or profile/default injection.
     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.

    <contributor>
      <name>Thomas Meyer</name>
    </contributor>
  </contributors>

  <dependencies>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-interpolation</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-settings</artifactId>
    </dependency>
    <dependency>

     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The execution properties, never {@code null}.
     */
    Map<String, String> getSystemProperties();

    /**

import org.apache.maven.model.profile.ProfileActivationContext;
import org.codehaus.plexus.interpolation.InterpolationException;
import org.codehaus.plexus.util.StringUtils;

/**
 * Determines profile activation based on the existence/absence of some file.
 * File name interpolation support is limited to <code>${project.basedir}</code>
 * system properties and user properties.
 *
 * @see ActivationFile