xml.namespace="http://maven.apache.org/TOOLCHAINS/${version}"
  xml.schemaLocation="http://maven.apache.org/xsd/toolchains-${version}.xsd">
  <id>toolchains</id>
  <name>MavenToolchains</name>
  <description><![CDATA[
    This is a reference for the Maven Toolchains descriptor.
    <p>The default location for the toolchains file is {@code ~/.m2/toolchains.xml}

import org.apache.maven.api.services.xml.XmlWriterException;
import org.apache.maven.api.services.xml.XmlWriterRequest;
import org.apache.maven.api.toolchain.PersistedToolchains;
import org.apache.maven.toolchain.v4.MavenToolchainsStaxReader;
import org.apache.maven.toolchain.v4.MavenToolchainsStaxWriter;

import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Singleton

import org.apache.maven.api.services.xml.XmlWriterException;
import org.apache.maven.api.services.xml.XmlWriterRequest;
import org.apache.maven.api.toolchain.PersistedToolchains;
import org.apache.maven.toolchain.v4.MavenToolchainsStaxReader;
import org.apache.maven.toolchain.v4.MavenToolchainsStaxWriter;

import static org.apache.maven.internal.impl.StaxLocation.getLocation;

                    -1,
                    e,
                    "Non-readable toolchains " + toolchainsSource.getLocation() + ": " + e.getMessage(),
                    BuilderProblem.Severity.FATAL));
            return PersistedToolchains.newInstance();
        }

        toolchains = interpolate(toolchains, request, problems);

        return toolchains;
    }

    private PersistedToolchains interpolate(

    <groupId>org.apache.maven</groupId>
    <artifactId>maven-api</artifactId>
    <version>4.0.0-beta-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-toolchain</artifactId>

  <name>Maven 4 API :: Toolchain</name>
  <description>Maven 4 API - Immutable Toolchain model.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-meta</artifactId>
    </dependency>

      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-toolchain-model</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-toolchain-builder</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.toolchain.PersistedToolchains;

/**
 *
 * @since 4.0.0
 */
@Experimental
public interface ToolchainsBuilderResult {
    /**
     * Gets the assembled toolchains.
     *
     * @return the assembled toolchains, never {@code null}
     */
    @Nonnull
    PersistedToolchains getEffectiveToolchains();

    /**

              <exclude>org.apache.maven.toolchain.DefaultToolchain#getLog():METHOD_RETURN_TYPE_CHANGED</exclude>
              <exclude>org.apache.maven.toolchain.DefaultToolchain#DefaultToolchain(org.apache.maven.toolchain.model.ToolchainModel,org.codehaus.plexus.logging.Logger):CONSTRUCTOR_REMOVED</exclude>

        return new ToolchainWrapper(toolchain);
    }

    private static class ToolchainWrapper implements Toolchain {
        private final org.apache.maven.toolchain.Toolchain toolchain;

        ToolchainWrapper(org.apache.maven.toolchain.Toolchain toolchain) {
            this.toolchain = toolchain;
        }

        @Override
        public String getType() {

                <param>packageModelV4=org.apache.maven.api.toolchain</param>
                <param>packageToolV4=org.apache.maven.toolchain.v4</param>
              </params>
            </configuration>
          </execution>
          <execution>
            <id>velocity-metadata</id>
            <goals>
              <goal>velocity</goal>
            </goals>
            <phase>generate-sources</phase>