* thrown or a simple string message. In addition, a problem carries a hint about its source, e.g. the settings file
 * that exhibits the problem.
 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services.SettingsBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface SettingsProblem {

    /**
     * The different severity levels for a problem, in decreasing order.
     */
    enum Severity {

import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
import org.codehaus.plexus.components.secdispatcher.SecDispatcherException;

/**
 * Decrypts passwords in the settings.
 *
 * @deprecated since 4.0.0
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultSettingsDecrypter implements SettingsDecrypter {
    private final SecDispatcher securityDispatcher;

    @Inject

 * that the connection to the backing store remains active until request's {@link ModelCache} is discarded or flushed.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelSource2 extends ModelSource {
    /**

import org.apache.maven.model.merge.MavenModelMerger;

/**
 * Handles injection of dependency management into the model.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@SuppressWarnings({"checkstyle:methodname"})
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultDependencyManagementInjector implements DependencyManagementInjector {

   * have the bug.
   *
   * @deprecated This implementation produces incorrect hash values from the {@link
   *     HashFunction#hashString} method if the string contains non-BMP characters. Use {@link
   *     #murmur3_32_fixed(int)} instead.
   */
  @Deprecated
  @SuppressWarnings("IdentifierName") // the best we could do for adjacent digit blocks

You can read more details about the ["Running lifespan in tests in the official Starlette documentation site."](https://www.starlette.dev/lifespan/#running-lifespan-in-tests)

For the deprecated `startup` and `shutdown` events, you can use the `TestClient` as follows:

 * (if it did we could add @Priority of 0 to match the priority given to default components.)
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named("core-default")
@Singleton
@Typed(ModelProcessor.class)
@Deprecated(since = "4.0.0")
public class DefaultModelProcessor implements ModelProcessor {

    @Inject
    private ModelLocator locator;

/**
 * A model building request that delegates all methods invocations to another request, meant for easy transformations by
 * subclassing.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class FilterModelBuildingRequest implements ModelBuildingRequest {

    protected ModelBuildingRequest request;

import org.apache.maven.utils.Os;

/**
 * Determines profile activation based on the operating system of the current runtime platform.
 *
 * @see ActivationOS
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named("os")
@Singleton
@Deprecated(since = "4.0.0")
public class OperatingSystemProfileActivator implements ProfileActivator {

    private static final String REGEX_PREFIX = "regex:";

    @Override

import java.io.IOException;

/**
 * Signals a failure to parse the POM due to invalid syntax (e.g. non well-formed XML or unknown elements).
 *
 * @deprecated use {@code org.apache.maven.api.services.xml.ModelXmlFactory} instead
 */
@Deprecated(since = "4.0.0")
public class ModelParseException extends IOException {

    /**
     * The one-based index of the line containing the error.
     */