// =================== DO NOT EDIT THIS FILE ====================
   //  Generated by Modello Velocity from model.vm
   //  template, any modifications will be overwritten.
   // ==============================================================
   package org.apache.maven.api.plugin.descriptor.lifecycle;
   
   import java.io.Serializable;
   import java.util.ArrayList;
   import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.Set;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  import org.apache.maven.api.annotations.Experimental;
  import org.apache.maven.api.annotations.Generated;
  import org.apache.maven.api.annotations.Immutable;
  import org.apache.maven.api.annotations.Nonnull;
  import org.apache.maven.api.annotations.NotThreadSafe;
  import org.apache.maven.api.annotations.ThreadSafe;
  import org.apache.maven.api.xml.XmlNode;
  
  /**
   * A set of goals to execute.
   */
  @Experimental
  @Generated @ThreadSafe @Immutable
  public class Execution
      implements Serializable
  {
      /**
       * Configuration to pass to the goals.
       */
      final XmlNode configuration;
      /**
       * The goals to execute.
       */
      final List<String> goals;
  
      /**
        * Constructor for this class, to be called from its subclasses and {@link Builder}.
        * @see Builder#build()
        */
      protected Execution(Builder builder) {
          this.configuration = builder.configuration != null ? builder.configuration : (builder.base != null ? builder.base.configuration : null);
          this.goals = ImmutableCollections.copy(builder.goals != null ? builder.goals : (builder.base != null ? builder.base.goals : null));
      }
  
      /**
       * Configuration to pass to the goals.
       *
       * @return a {@code XmlNode}
       */
      public XmlNode getConfiguration() {
          return this.configuration;
      }
  
      /**
       * The goals to execute.
       *
       * @return a {@code List<String>}
       */
      @Nonnull
      public List<String> getGoals() {
          return this.goals;
      }
  
      /**
       * Creates a new builder with this object as the basis.
       *
       * @return a {@code Builder}
       */
      @Nonnull
      public Builder with() {
          return newBuilder(this);
      }
      /**
       * Creates a new {@code Execution} instance using the specified configuration.
       *
       * @param configuration the new {@code XmlNode} to use
       * @return a {@code Execution} with the specified configuration
       */
      @Nonnull
      public Execution withConfiguration(XmlNode configuration) {
          return newBuilder(this, true).configuration(configuration).build();
      }
      /**
       * Creates a new {@code Execution} instance using the specified goals.
       *
       * @param goals the new {@code Collection<String>} to use
       * @return a {@code Execution} with the specified goals
       */
      @Nonnull
      public Execution withGoals(Collection<String> goals) {
          return newBuilder(this, true).goals(goals).build();
     }
 
     /**
      * Creates a new {@code Execution} instance.
      * Equivalent to {@code newInstance(true)}.
      * @see #newInstance(boolean)
      *
      * @return a new {@code Execution}
      */
     @Nonnull
     public static Execution newInstance() {
         return newInstance(true);
     }
 
     /**
      * Creates a new {@code Execution} instance using default values or not.
      * Equivalent to {@code newBuilder(withDefaults).build()}.
      *
      * @param withDefaults the boolean indicating whether default values should be used
      * @return a new {@code Execution}
      */
     @Nonnull
     public static Execution newInstance(boolean withDefaults) {
         return newBuilder(withDefaults).build();
     }
 
     /**
      * Creates a new {@code Execution} builder instance.
      * Equivalent to {@code newBuilder(true)}.
      * @see #newBuilder(boolean)
      *
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder() {
         return newBuilder(true);
     }
 
     /**
      * Creates a new {@code Execution} builder instance using default values or not.
      *
      * @param withDefaults the boolean indicating whether default values should be used
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(boolean withDefaults) {
         return new Builder(withDefaults);
     }
 
     /**
      * Creates a new {@code Execution} builder instance using the specified object as a basis.
      * Equivalent to {@code newBuilder(from, false)}.
      *
      * @param from the {@code Execution} instance to use as a basis
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(Execution from) {
         return newBuilder(from, false);
     }
 
     /**
      * Creates a new {@code Execution} builder instance using the specified object as a basis.
      *
      * @param from the {@code Execution} instance to use as a basis
      * @param forceCopy the boolean indicating if a copy should be forced
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(Execution from, boolean forceCopy) {
         return new Builder(from, forceCopy);
     }
 
     /**
      * Builder class used to create Execution instances.
      * @see #with()
      * @see #newBuilder()
      */
     @NotThreadSafe
     public static class Builder
     {
         Execution base;
         XmlNode configuration;
         Collection<String> goals;
 
         protected Builder(boolean withDefaults) {
             if (withDefaults) {
             }
         }
 
         protected Builder(Execution base, boolean forceCopy) {
             if (forceCopy) {
                 this.configuration = base.configuration;
                 this.goals = base.goals;
             } else {
                 this.base = base;
             }
         }
 
         @Nonnull
         public Builder configuration(XmlNode configuration) {
             this.configuration = configuration;
             return this;
         }
 
         @Nonnull
         public Builder goals(Collection<String> goals) {
             this.goals = goals;
             return this;
         }
 
 
         @Nonnull
         public Execution build() {
             // this method should not contain any logic other than creating (or reusing) an object in order to ease subclassing
             if (base != null
                     && (configuration == null || configuration == base.configuration)
                     && (goals == null || goals == base.goals)
             ) {
                 return base;
             }
             return new Execution(this);
         }
 
     }
 
 }