need it so that empty directory does not get deleted...

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

/**
 * A container for data that is specific to a session.
 * All components may use this storage to associate arbitrary data with a session.
 * <p>
 * Unlike a cache, this session data is not subject to purging. For this same reason, session data should also not be
 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>

#*      *##set ( $spdx = 'Apache-2.0' )
#*    *##else
#*      *### unrecognized license will require analysis to know obligations
#*      *##set ( $spdx = 'unrecognized' )
#*    *##end
#*    *###
#*    *### fix project urls that are wrong in pom
#*    *##if ( $project.url.startsWith( "http://www.eclipse.org/sisu/" ) )
#*      *##set ( $project.url = 'https://www.eclipse.org/sisu/' )

     *
     * @return The level of validation to perform on processed models.
     */
    int getValidationLevel();

    // Profiles

    /**
     * Set any active profiles that the {@link ProjectBuilder} should consider while constructing
     * a {@link MavenProject}.
     */
    void setActiveProfileIds(List<String> activeProfileIds);

    List<String> getActiveProfileIds();

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

/**
 * A task that is a goal.
 * <p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
public final class GoalTask extends Task {

~~ under the License.

 -----
 Introduction
 -----
 Hervé Boutemy
 -----
 2016-05-29
 -----

Maven Compat

 Maven2 classes maintained as compatibility layer for plugins that need to keep Maven2 compatibility.

 Plugins should avoid these classes and be updated to use only Maven3 dependencies (and require Maven3): see

  <groupId>org.apache.maven.its.mng3023</groupId>
  <artifactId>parent</artifactId>
  <version>1</version>
  <packaging>pom</packaging>

  <name>Maven Integration Test :: MNG-3023</name>
  <description>Test that reactor projects are included in dependency resolution.</description>

  <modules>
    <module>dependency</module>
    <module>consumer</module>
  </modules>

Copyright (c) 2002-2024, the original author or authors.
All rights reserved.

https://opensource.org/licenses/BSD-3-Clause

Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:

Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

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

import java.util.ArrayList;
import java.util.List;

/**
 * Collects problems that are encountered during settings building.
 *
 */
class DefaultProblemCollector implements ProblemCollector {

    private final List<Problem> problems;

    private String source;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.legacy.resolver.conflict;

/**
 * A factory that produces conflict resolvers of various types.
 *
 * @see ConflictResolver
 * @since 3.0
 */
@Deprecated
public interface ConflictResolverFactory {