- extension artifact missing
- artifact metadata retrieval problem
- version range violation
- circular dependency
- artifact missing
- artifact retrieval exception
- md5 checksum doesn't match for local artifact, need to redownload this
- POM doesn't exist for a goal that requires one
- parent POM missing (in both the repository + relative path)
- component not found

Plugins:
- plugin metadata missing

        return (lastCheckDate == null) || policy.checkOutOfDate(lastCheckDate);
    }

    public boolean isUpdateRequired(RepositoryMetadata metadata, ArtifactRepository repository, File file) {
        // Here, we need to determine which policy to use. Release updateInterval will be used when
        // the metadata refers to a release artifact or meta-version, and snapshot updateInterval will be used when

              <execution>
                <goals>
                  <goal>manifest</goal>
                </goals>
              </execution>
            </executions>
          </plugin>
          <!-- Needed for including the manifest, see MJAR-71 -->
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.1</version>

                            return null;
                        }

                        // MNG-2861: the artifact data has changed. If the available versions where previously
                        // retrieved, we need to update it.
                        // TODO shouldn't the versions be merged across relocations?
                        List<ArtifactVersion> available = artifact.getAvailableVersions();

| CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD org.hamcrest Class Condition<T> java.lang.Object org.hamcrest.Condition<T> public abstract class Condition<T> extends java.lang.Object A Condition implements part of a multi-step match. We sometimes need to write matchers that have a sequence of steps, where each step depends on the result of the previous step and we can stop processing as soon as a step fails. These classes provide infrastructure for writing such a sequence. Based on https://gith...

    <class>
      <name>RepositoryBase</name>
      <version>1.0.0</version>
      <description><![CDATA[
         Repository contains the information needed
         for establishing connections with remote repository
      ]]></description>
      <fields>
        <field>
          <name>id</name>
          <version>1.0.0</version>
          <description><![CDATA[

     *
     * @param artifact           artifact we are interested in. Only <code>groupid</code> and <code>artifactId</code>
     *                           are needed, for instance the following code will work
     *                           <code>artifactFactory.createProjectArtifact( "org.apache.maven", "maven", "" )</code>
     * @param localRepository    local repository

    @Inject
    public DefaultToolchainManagerPrivate(Map<String, ToolchainFactory> factories) {
        super(factories);
    }

    /**
     * Ctor needed for UT.
     */
    DefaultToolchainManagerPrivate(Map<String, ToolchainFactory> factories, Logger logger) {
        super(factories, logger);
    }

    @Override

 * under the License.
 */
package org.apache.maven.artifact.handler;

/**
 * An artifact handler contains information explaining how an artifact plugs into the Maven build:<ul>
 * <li>Information needed to find the artifact file in a repository including extension and classifier</li>
 * <li>Information on how to use the artifact as a dependency: whether to add it to the classpath, whether to load its
 * dependencies transitively</li>

    <class java.clone="deep">
      <name>RepositoryBase</name>
      <version>1.0.0+</version>
      <superClass>IdentifiableBase</superClass>
      <description>
        Repository contains the information needed
        for establishing connections with remote repository
      </description>
      <fields>
        <field>
          <name>name</name>
          <version>1.0.0+</version>
          <description>