import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.api.services.Lookup;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.impl.InternalSession;
import org.apache.maven.rtinfo.RuntimeInformation;
import org.eclipse.aether.RepositorySystem;

@Singleton
@Named
public class DefaultSessionFactory {

一般情况下可能不会需要在代码中直接使用响应头。

但对于某些高级应用场景，还是需要添加自定义响应头：

{* ../../docs_src/handling_errors/tutorial002.py hl[14] *}

## 安装自定义异常处理器

添加自定义处理器，要使用 [Starlette 的异常工具](https://www.starlette.dev/exceptions/)。

假设要触发的自定义异常叫作 `UnicornException`。

且需要 FastAPI 实现全局处理该异常。

此时，可以用 `@app.exception_handler()` 添加自定义异常控制器：

{* ../../docs_src/handling_errors/tutorial003.py hl[5:7,13:18,24] *}

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

import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;

import org.apache.maven.execution.ProjectDependencyGraph;
import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
import org.apache.maven.project.MavenProject;

/**
 * Contains status information that is global to an entire reactor build.
 *

 *   <li>{@link org.apache.maven.api.model.Build} - Contains build configuration information</li>
 *   <li>{@link org.apache.maven.api.model.Profile} - Represents a build profile for conditional execution</li>
 * </ul>
 *
 * @since 4.0.0
 */

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;

import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.project.MavenProject;

/**
 * <p>
 * A list of project segments, ordered so that all ProjectSegments from first TaskSegment come before any
 * subsequent TaskSegments.
 * </p>

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.lifecycle;

import java.util.List;
import java.util.Set;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.MojoNotFoundException;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.plugin.version;

import java.util.Collections;
import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Model;
import org.apache.maven.model.Plugin;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.Arrays;
import java.util.List;

import org.apache.maven.DefaultMaven;
import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.model.building.ModelSource;
import org.apache.maven.model.building.UrlModelSource;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.ProjectBuilder;

         * System properties are initialized before the build starts and are available throughout the entire Maven
         * execution. They are used for core Maven functionality that needs to be established at startup.
         */
        SYSTEM_PROPERTIES,
        /**

import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Collectors;

import org.apache.maven.api.Constants;
import org.apache.maven.eventspy.AbstractEventSpy;
import org.apache.maven.execution.ExecutionEvent;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.InputLocation;
import org.apache.maven.plugin.PluginValidationManager;
import org.apache.maven.plugin.descriptor.MojoDescriptor;