<dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-api</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-spi</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-util</artifactId>
    </dependency>
    <dependency>

    @Nonnull
    Nature getNature();

    /**
     * Creates a version range resolver request using the session's repositories.
     *
     * @param session the session to use, must not be {@code null}
     * @param artifactCoordinates the artifact coordinates whose version range should be resolved, must not be {@code null}
     * @return the version range resolver request, never {@code null}
     */
    @Nonnull

    </dependency>

    <!-- Resolver -->
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-api</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-spi</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>

        // Setup
        TestLoginCredentialResolver resolver1 = new TestLoginCredentialResolver();
        TestLoginCredentialResolver resolver2 = new TestLoginCredentialResolver();

        // Execute
        authenticator.resolveCredential(resolver1);
        authenticator.resolveCredential(resolver2);

        // Verify
        assertTrue(authenticator.isResolverCalled());

      <groupId>org.apache.maven</groupId>
      <artifactId>maven-resolver-provider</artifactId>
    </dependency>

    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-api</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-util</artifactId>
    </dependency>
    <dependency>

    }

    private Path resolve(String string) {
        if (string.startsWith("~/") || string.startsWith("~\\")) {
            // resolve based on $HOME
            return Paths.get(System.getProperty("user.home"))
                    .resolve(string.substring(2))
                    .normalize()
                    .toAbsolutePath();
        } else {
            // resolve based on $CWD

      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-connector-basic</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-transport-file</artifactId>
    </dependency>
    <!-- HTTP/1.1, lowest priority, Java8+ (still must as some ITs force it) -->

    </dependency>

    <!-- Resolver -->
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-api</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-spi</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>

 * under the License.
 */
package org.apache.maven.repository.internal.artifact;

/**
 * The keys for Maven specific properties of artifacts. These properties "extend" (or supplement) the Resolver
 * core properties defined in {@link org.eclipse.aether.artifact.ArtifactProperties}.
 *
 * @see org.eclipse.aether.artifact.ArtifactProperties
 * @since 4.0.0

    TypeResolver resolver = covariantTypeResolver;
    if (resolver == null) {
      resolver = (covariantTypeResolver = TypeResolver.covariantly(runtimeType));
    }
    return resolver;
  }

  private TypeResolver getInvariantTypeResolver() {
    TypeResolver resolver = invariantTypeResolver;
    if (resolver == null) {