}

    @Override
    public void flush() {
        cache.clear();
    }

    protected static int pluginHashCode(Plugin plugin) {
        return CacheUtils.pluginHashCode(plugin);
    }

    protected static boolean pluginEquals(Plugin a, Plugin b) {
        return CacheUtils.pluginEquals(a, b);
    }

    @Override

import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoNotFoundException;
import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
import org.apache.maven.plugin.version.PluginVersionResolutionException;

    Object getPluginComponent(Plugin plugin, String role, String roleHint)
            throws PluginManagerException, ComponentLookupException;

    Map<String, Object> getPluginComponents(Plugin plugin, String role)
            throws ComponentLookupException, PluginManagerException;

    /**
     * @since 2.2.1
     */
    PluginDescriptor loadPluginDescriptor(Plugin plugin, MavenProject project, MavenSession session)

                + "    <plugins>\n"
                + "      <plugin>\n"
                + "         <m:configuration xmlns:m=\"http://maven.apache.org/POM/4.0.0\" xmlns=\"http://fabric8.io/fabric8-maven-plugin\">\n"
                + "             <myConfig>foo</myConfig>\n"
                + "         </m:configuration>\n"
                + "      </plugin>\n"
                + "    </plugins>\n"
                + "  </build>\n"

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

import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.codehaus.plexus.classworlds.realm.ClassRealm;

    }

    protected static int pluginHashCode(Plugin plugin) {
        return CacheUtils.pluginHashCode(plugin);
    }

    protected static boolean pluginEquals(Plugin a, Plugin b) {
        return CacheUtils.pluginEquals(a, b);
    }

    @Override
    public void register(MavenProject project, Key key, CacheRecord record) {
        // default cache does not track plugin usage
    }

    @Override

                        .dependencies(deps)
                        .build();

                plugins.put(key, plugin);
            }
        }
    }

    private static String getExecutionId(Plugin plugin, String goal) {
        Set<String> existingIds = plugin != null
                ? plugin.getExecutions().stream().map(PluginExecution::getId).collect(Collectors.toSet())
                : Set.of();

    }

    public static int pluginHashCode(Plugin plugin) {
        int hash = 17;

        hash = hash * 31 + Objects.hashCode(plugin.getGroupId());
        hash = hash * 31 + Objects.hashCode(plugin.getArtifactId());
        hash = hash * 31 + Objects.hashCode(plugin.getVersion());

        hash = hash * 31 + (plugin.isExtensions() ? 1 : 0);

        for (Dependency dependency : plugin.getDependencies()) {

        "compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":compile",
        "process-test-resources",
                "org.apache.maven.plugins:maven-resources-plugin:" + RESOURCES_PLUGIN_VERSION + ":testResources",
        "test-compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":testCompile",

        "compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":compile",
        "process-test-resources",
                "org.apache.maven.plugins:maven-resources-plugin:" + RESOURCES_PLUGIN_VERSION + ":testResources",
        "test-compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":testCompile",