}

    /**
     * Creates a temporary project structure with all POMs written to preserve relative paths.
     * This allows Maven 4 API to properly resolve the project hierarchy.
     */
    private Path createTempProjectStructure(UpgradeContext context, Map<Path, Document> pomMap) throws Exception {
        Path tempDir = Files.createTempDirectory("mvnup-project-");

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

class DefaultToolchainManagerTest {
    // Mocks to inject into toolchainManager
    @Mock
    private Logger logger;

    private ToolchainManagerFactory.DefaultToolchainManagerV3 toolchainManager;

    @Mock
    private ToolchainFactory toolchainFactoryBasicType;

is data "<abbr title="also called marshalling, conversion">serialization</abbr>" which is taking data from the code (Python) and converting it into something that can be sent through the network. For example, converting an object containing data from a database into a JSON object. Converting `datetime` objects into strings, etc.

Another big feature needed by APIs is data validation, making sure that the data is valid, given certain parameters. For example, that some field is an `int`, and...

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.function.UnaryOperator;

import com.google.inject.AbstractModule;
import com.google.inject.Module;
import org.apache.maven.api.Constants;
import org.apache.maven.api.ProtoSession;
import org.apache.maven.api.cli.Logger;
import org.apache.maven.api.cli.extensions.CoreExtension;

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

     *
     * @return the installation settings source or {@code null} if none
     */
    @Nonnull
    Optional<Source> getInstallationSettingsSource();

    /**
     * Gets the project settings source.
     *
     * @return the project settings source or {@code null} if none
     */
    @Nonnull
    Optional<Source> getProjectSettingsSource();

    /**
     * Gets the user settings source.
     *

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli.internal;

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

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;

    "crossVersionTests": false
  },
  {
    "name": "project-features",
    "path": "platforms/core-configuration/project-features",
    "unitTests": false,
    "functionalTests": true,
    "crossVersionTests": false
  },
  {
    "name": "project-features-api",
    "path": "platforms/core-configuration/project-features-api",
    "unitTests": false,
    "functionalTests": false,