* 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

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.util.Properties;

import org.apache.maven.model.building.ModelBuildingRequest;

/**
 * Allows a fixed set of properties that are valid inside a version and that could be overwritten for example on the

  <groupId>org.apache.maven.its.mng3944</groupId>
  <artifactId>test1</artifactId>
  <version>1.0-SNAPSHOT</version>

  <name>Maven Integration Test :: MNG-3944</name>
  <description>
    Test that interpolation of ${basedir} works for a POM that is not named "pom.xml"
  </description>

  <properties>
    <!-- this is where we collect all the interpolated values for the POM dump -->
    <prop0>${basedir}</prop0>

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project.interpolation;

/**
 */
@SuppressWarnings("serial")
@Deprecated
public class ModelInterpolationException extends Exception {
    private String expression;

    private String originalMessage;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project.interpolation;

import java.util.Map;

import org.apache.maven.api.model.InputLocation;
import org.apache.maven.api.model.InputSource;
import org.apache.maven.api.model.Model;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation.reflection;

import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Properties;
import java.util.TimeZone;

/**
 * MavenBuildTimestamp
 *

  <groupId>org.apache.maven.its.mng3822</groupId>
  <artifactId>test1</artifactId>
  <version>1.0-SNAPSHOT</version>

  <name>Maven Integration Test :: MNG-3822</name>
  <description>
    Verify that POM interpolation uses basedir-aligned build directories.
  </description>

  <properties>
    <!-- this is where we collect all the interpolated values for the POM dump -->
    <buildMainSrc>${project.build.sourceDirectory}</buildMainSrc>

import org.apache.maven.model.building.ModelProblemCollectorRequest;
import org.codehaus.plexus.interpolation.InterpolationException;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
import org.codehaus.plexus.interpolation.RecursionInterceptor;
import org.codehaus.plexus.interpolation.StringSearchInterpolator;
import org.codehaus.plexus.interpolation.ValueSource;
import org.codehaus.plexus.util.xml.Xpp3Dom;

/**

 * under the License.
 */
package org.apache.maven.api.services;

import org.apache.maven.api.annotations.Experimental;

/**
 * Exception thrown by {@link Interpolator} implementations when an error occurs during interpolation.
 * This can include syntax errors in variable placeholders or recursive variable references.
 *
 * @since 4.0.0
 */
@Experimental
public class InterpolatorException extends MavenException {

    /**