Two mojos of the same plugin: one has all "compile source roots", the other hasn't

[Thomas Broyer <t....@gmail.com>]

Hi all,

I'm having an issue with a plugin. I have two mojos with the following
annotations (yes, I haven't yet moved to Java5 annotations):

 * @goal run-codeserver
 * @execute phase=process-classes
 * @requiresDirectInvocation
 * @requiresDependencyResolution compile
Source: https://github.com/gwt-maven-plugin/gwt-maven-plugin/blob/master/src/main/java/org/codehaus/mojo/gwt/shell/SuperDevModeMojo.java

 * @goal run
 * @execute phase=process-classes goal:war:exploded
 * @requiresDirectInvocation
 * @requiresDependencyResolution test
Source: https://github.com/gwt-maven-plugin/gwt-maven-plugin/blob/master/src/main/java/org/codehaus/mojo/gwt/shell/RunMojo.java

They both use the same code to build the classpath to pass to a forked
java process, that puts project.getCompileSourceRoots() in that
classpath.

In a project using that plugin, another mojo is bound to the
generate-sources phase and addCompileSourceRoot the folder containing
the generated files (nothing fancy).

The problem: when running "mvn gwt:run", the folder added at the
generate-sources phase is correctly added to the constructed
classpath, but when using "mvn gwt:run-codeserver" it only contains
src/main/java.
What even stranger: the maven-compiler-plugin is invoked with both
folders in both cases.

Any idea why it behaves that way? Any hint where I could put
breakpoints to help debug this?
Could the "goal:war:exploded" added to the @execute annotation be the
reason the folder is added to the compile source roots?

If one wants to try it: "mvn archetype:generate
-DarchetypeGroupId=org.codehaus.mojo
-DarchetypeArtifactId=gwt-maven-plugin -DarchetypeVersion=2.5.0-rc1"
then "mvn gwt:run" or "mvn gwt:run-codeserver"

Thanks in advance

-- 
Thomas Broyer
/tɔ.ma.bʁwa.je/

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