[antlr-interest] antlr3 maven plugin not executed during clean install

[ds at escalon.de]

Hi,

The antlr3 plugin does not generate sources for me when I run mvn clean install
on my war project using maven 3.0.4:
Apache Maven 3.0.4 (r1232337; 2012-01-17 09:44:56+0100)
Maven home: C:\Programme\ASF\apache-maven-3.0.4\bin\..
Java version: 1.6.0_31, vendor: Sun Microsystems Inc.
Java home: C:\programme\java\jdk1.6.0_31\jre

I have configured the antlr3 plugin like this:

      <plugin>
        <groupId>org.antlr</groupId>
        <artifactId>antlr3-maven-plugin</artifactId>
        <version>3.4</version>
        <executions>
          <execution>
            <configuration>
              <goals>
                <goal>antlr</goal>
              </goals>
            </configuration>
          </execution>
        </executions>
      </plugin>

I tried a number of other configurations, but this should execute the antlr goal
automatically during the default lifecycle during process-sources since that is
how the Mojo is annotated:

 * @goal antlr
 * @phase process-sources

(I also tried to add <phase>generate-sources</phase> and also the compile phase,
no effect)

The antlr goal is never invoked. I need to do it manually like this:

mvn clean antlr3:antlr install

Only then, the sources are generated properly and my build succeeds. Therefore I
think that my .g files are in the right place (below src/main/antlr3/[fully
qualified package]/). What can be the reason for this? Is it because I am
building a war project or because I use Maven 3.0.4 and not Maven 3.0.3?

Dietrich Schulten