* under the License.
 */
package org.apache.maven.plugin;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.maven.model.Plugin;

/**
 * Exception occurring trying to resolve a plugin.
 *
 */
public class PluginResolutionException extends Exception {

    private final Plugin plugin;

    public PluginResolutionException(Plugin plugin, Throwable cause) {
        super(

  /** Support for {@link Iterator#remove()}. */
  SUPPORTS_REMOVE,
  /**
   * Support for {@link ListIterator#add(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_ADD,
  /**
   * Support for {@link ListIterator#set(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_SET;

  /**

%{snippet|id=ejb|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/EjbLifecycleMappingProvider.java}

* Plugin bindings for <<<maven-plugin>>> packaging

%{snippet|id=maven-plugin|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/MavenPluginLifecycleMappingProvider.java}

* Plugin bindings for <<<war>>> packaging

/**
 * Tests {@code Plugin}.
 *
 */
class PluginTest {

    @Test
    void testHashCodeNullSafe() {
        new Plugin().hashCode();
    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Plugin().equals(null));

        new Plugin().equals(new Plugin());
    }

    @Test
    void testEqualsIdentity() {
        Plugin thing = new Plugin();

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

import java.util.Collections;

import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.Parameter;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

       *
       * Example:
       * ```
       * --> POST /greeting http/1.1
       * Host: example.com
       * Content-Type: plain/text
       * Content-Length: 3
       * --> END POST
       *
       * <-- 200 OK (22ms)
       * Content-Type: plain/text
       * Content-Length: 6
       * <-- END HTTP
       * ```
       */
      HEADERS,

      /**

     * Sets the configuration to the configuration taken from the specified build plugin in the POM. First, the build
     * plugins will be searched for the specified plugin, if that fails, the plugin management section will be searched.
     *
     * @param model The POM to extract the plugin configuration from, may be {@code null}.
     * @param pluginGroupId The group id of the plugin whose configuration should be used, must not be {@code null} or

        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");
        plugin.setArtifactId(artifactId);

        for (String goal : goals) {
            PluginExecution pluginExecution = new PluginExecution();
            pluginExecution.setId("default-" + goal);
            pluginExecution.addGoal(goal);
            plugin.addExecution(pluginExecution);

        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

    private Plugin newPlugin(String artifactId, String... goals) {
        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");
        plugin.setArtifactId(artifactId);

        for (String goal : goals) {
            PluginExecution pluginExecution = new PluginExecution();

        "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",