} catch (IOException e) {
            LOGGER.warn(
                    "An I/O error occurred while checking if the packaged artifact is up-to-date "
                            + "against the build output directory. "
                            + "Continuing with the assumption that it is up-to-date.",
                    e);
            return true;
        }
    }

        }

        if (file == null) {
            // TODO throw something instead?
            return true;
        }

        Date lastCheckDate;

        if (file.exists()) {
            lastCheckDate = new Date(file.lastModified());
        } else {
            File touchfile = getTouchfile(artifact);
            lastCheckDate = readLastUpdated(touchfile, getRepositoryKey(repository));

        this.executionProperties = executionProperties;
        return this;
    }

    public Date getBuildStartTime() {
        return buildStartTime;
    }

    public ProjectBuilderConfiguration setBuildStartTime(Date buildStartTime) {
        this.buildStartTime = buildStartTime;
        return this;
    }

#*    *### copy license file to lib/$artifactId.license
#*    *##set ( $licFile = $directory + '/' + $project.artifact.artifactId + '.license' )
#*    *##if ( $spdx == "MIT" || $spdx == "unrecognized" )
#*      *### MIT license contains date and copyright that makes the file specific to each artifact
#*      *##set ( $downloaded = $locator.getResourceAsFile( "licenses/${spdx}-${project.artifact.artifactId}-${project.artifact.version}.txt", "licenses/${licFile}" ) )

    private final Map<Object, RemoteSnapshotMetadata> snapshots;

    private final Date timestamp;

    private final Integer buildNumber;

    RemoteSnapshotMetadataGenerator(RepositorySystemSession session, DeployRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");
        Object bn = ConfigUtils.getObject(session, null, "maven.buildNumber");

      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without

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

import java.text.SimpleDateFormat;
import java.time.Instant;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Map;
import java.util.Properties;
import java.util.TimeZone;

/**
 * MavenBuildTimestamp
 */
public class MavenBuildTimestamp {

import javax.inject.Singleton;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

(excluding combinations of the Program with other software or hardware) infringes
such Recipient's patent(s), then such Recipient's rights granted under Section
2(b) shall terminate as of the date such litigation is filed.

All Recipient's rights under this Agreement shall terminate if it fails to
comply with any of the material terms or conditions of this Agreement and

    private final Map<Object, LocalSnapshotMetadata> snapshots;

    private final Date timestamp;

    LocalSnapshotMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        snapshots = new LinkedHashMap<>();
    }

    @Override