use maven-plugin-tools' java 5 annotations

Here is a patch to fix the task.

Note that there were some component with also @readonly or required javadoc annotations (but this does not exists in the java annotation).

Fixed in r1355570
I did some small modifications:

• I kept the pom in sync with its parent, just upgrading the versions when required.
• project, session, and settings are special parameters (required+readonly). These can be annotated with @Component, so I did. If I had found the page with these special parameters I would have given it to you, but I haven't found it yet.

Anyhow, thanks a lot!

Ok good to know, I found your page here

http://maven.apache.org/plugin-tools/apidocs/org/apache/maven/plugins/annotations/Component.html

I submit other patch on the same topic, I will modify them this.

Robert, We need to add the following configuration for the maven-plugin-plugin

<configuration>
  <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
</configuration>

Because when the helpmojo is invoked (phase generate-sources), no mojo is discovered since the descriptor goal is invoked now at process-classes phase.

See second patch

I already noticed a Jenkins failure this morning, it's already fixed. Thanks for mentioning.