in this context) and <<<$\{rootDirectory}>>> (introduced in Maven 4), system properties and user properties.

  Values are evaluated in sequence from different syntaxes:

*----+------+------+
|| value || evaluation result || common examples ||
*----+------+------+
| <<<project.*>>>\
<<<pom.*>>> (<deprecated>)\

import org.eclipse.aether.version.VersionScheme;

/**
 * Default version scheme provider: provides singleton {@link GenericVersionScheme} instance.
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Singleton
@Named
@Deprecated(since = "4.0.0")
public final class DefaultVersionSchemeProvider implements Provider<VersionScheme> {
    private final GenericVersionScheme genericVersionScheme;

 * encouraged to implement {@link ModelSource2} instead of implementing this interface directly.
 *
 * @see ModelSource2
 * @deprecated instead use {@link Source}
 */
@Deprecated

import org.apache.maven.metadata.v4.MetadataStaxWriter;

/**
 * Provide public methods from {@link MetadataStaxWriter}
 *
 * @deprecated Maven 3 compatability - please use {@link MetadataStaxWriter}
 */
@Deprecated
public class MetadataXpp3Writer {

    private final MetadataStaxWriter delegate;

    /**
     * Default constructor
     */
    public MetadataXpp3Writer() {

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

/**
 * Handles injection of plugin executions induced by the lifecycle bindings for a packaging.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface LifecycleBindingsInjector {

    /**

import org.apache.maven.settings.building.SettingsProblem.Severity;
import org.apache.maven.settings.building.SettingsProblemCollector;

/**
 * @deprecated since 4.0.0, use {@link org.apache.maven.internal.impl.DefaultSettingsValidator} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultSettingsValidator implements SettingsValidator {

    private static final String ID = "[\\w.-]+";

import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;

import org.apache.maven.building.Problem;

/**
 * @since 3.3.0
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services.ToolchainsBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class ToolchainsBuildingException extends Exception {

    private final List<Problem> problems;

    /**

import org.apache.maven.building.Source;

/**
 * Collects toolchains that control the building of effective toolchains.
 *
 * @since 3.3.0
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services.ToolchainsBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ToolchainsBuildingRequest {

    /**
     * Gets the global toolchains source.
     *

### **Deprecated metrics monitoring**

    }

    String getName() {
        return name
    }

    PropertyMetaData getMetaData() {
        return metaData
    }

    boolean isDeprecated() {
        return metaData.deprecated && !referringClass.deprecated
    }

    boolean isIncubating() {
        return metaData.incubating || metaData.ownerClass.incubating
    }

    boolean isReplaced() {
        return metaData.replaced
    }