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

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

  <build>
    <plugins>
      <plugin>

  <groupId>gid</groupId>
  <version>0.1</version>

  <dependencies>
    <dependency>
      <groupId>test</groupId>
      <artifactId>a</artifactId>
      <version>0.2</version>
      <scope>system</scope>
      <systemPath>should-use-variables-and-not-hard-code-this-path</systemPath>
    </dependency>
    <dependency>
      <groupId>test</groupId>
      <artifactId>b</artifactId>
      <version>0.1</version>

    <version>0.1-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>test</groupId>
                <artifactId>mydep</artifactId>
                <version>0.2</version>
            </dependency>
            <dependency>
                <groupId>test</groupId>
                <artifactId>import</artifactId>

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

  <build>
    <plugins>
      <plugin>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>test</groupId>
                <artifactId>other</artifactId>
                <version>0.1-SNAPSHOT</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>test</groupId>
                <artifactId>import</artifactId>

### Dependency Injection

FastAPI bao gồm một hệ thống <abbr title='cũng biết đến như là "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></abbr> vô cùng dễ sử dụng nhưng vô cùng mạnh mẽ.

* Thậm chí, các dependency có thể có các dependency khác, tạo thành một phân cấp hoặc **"một đồ thị" của các dependency**.
* Tất cả **được xử lí tự động** bởi framework.

    while (queue.isNotEmpty()) {
        val dependency = when (val result = queue.removeFirst()) {
            is ResolvedDependencyResult -> result
            is UnresolvedDependencyResult -> throw result.failure
            else -> throw AssertionError("Unknown dependency type: $result")
        }

        if (dependency.isConstraint) {
            continue
        }

        val to = dependency.resolvedVariant

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

/**
 * Indicates when the dependency will be used.
 * For example, it may be at compile time only, at runtime, or at test time.
 * For a given dependency, the scope is directly derived from the
 * {@link org.apache.maven.api.model.Dependency#getScope()} and will be used when using {@link PathScope}
 * and the {@link org.apache.maven.api.services.DependencyResolver}.

     */
    String TEST_JAR = "test-jar";

    /**
     * Returns the dependency type id.
     * The id uniquely identifies this <i>dependency type</i>.
     *
     * @return the id of this type, never {@code null}.
     */
    @Nonnull
    String id();

    /**
     * Returns the dependency type language.
     *
     * @return the language of this type, never {@code null}.
     */

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

/**
 * A {@link Dependency} that has been resolved, i.e. downloaded to the local repository.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable