[MPLUGIN-267] document how to change descriptor phase instead of running it twice with skipErrorNoDescriptorsFound

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3
• Fix Version/s: 3.4
• Component/s: Plugin Plugin
• Assignee: Herve Boutemy
• Reporter: Herve Boutemy
• Created: 02/Jun/14 12:17
• Updated: 04/Jun/14 21:12
• Resolved: 02/Jun/14 18:38

Description

actual example says:

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-plugin-plugin</artifactId>
        <version>3.3</version>
        <configuration>
          <!-- see http://jira.codehaus.org/browse/MNG-5346 -->
          <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
        </configuration>
        <executions>
          <execution>
            <id>mojo-descriptor</id>
            <goals>
              <goal>descriptor</goal>
            </goals>
          </execution>

this skipErrorNoDescriptorsFound configuration is not really good, since it does never check if mojo descriptors can be found.

A recent idea permits to avoid this: simply changing the phase of the actual goal, instead of configuring a second run:

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-plugin-plugin</artifactId>
        <version>3.3</version>
        <executions>
          <execution>
            <id>default-descriptor</id>
            <phase>process-classes</phase>
          </execution>

the key change is the default-descriptor execution id instead of mojo-descriptor.

Notice: it works with Maven 3 but not with Maven 2...