*/
    public boolean alwaysExecute() {
        return MULTI_PASS_EXEC_STRATEGY.equals(executionStrategy);
    }

    /**
     * @return the execution strategy
     */
    public String getExecutionStrategy() {
        return executionStrategy;
    }

    /**
     * @param executionStrategy the new execution strategy
     */

      <phase>package</phase>
      <implementation>org.apache.maven.plugin.jar.JarMojo</implementation>
      <language>java</language>
      <instantiationStrategy>per-lookup</instantiationStrategy>
      <executionStrategy>once-per-session</executionStrategy>
      <deprecated>deprecated-mojo</deprecated>
      <since>2.2</since>
      <executePhase>generate-sources</executePhase>
      <executeGoal>some-goal</executeGoal>

          <type>String</type>
          <defaultValue>per-lookup</defaultValue>
          <description>Specify the instantiation strategy.</description>
        </field>
        <field>
          <name>executionStrategy</name>
          <version>1.0.0/1.1.0</version>
          <type>String</type>
          <description>
            Specify the execution strategy: {@code once-per-session}, {@code always}.
          </description>