Question

I have a multimodule maven setup for my project, made of 5 modules, which includes a GWT webapp.
It is also an eclipse multiproject workspace, so I created an additional project, only containing a pom, which lists the other projects (sibling on the file system) as children modules.
I’m also a new maven user, so I might be doing something wrong. =)

The gwt module uses the following plugin

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.4.0</version>
<executions>
    <execution>
        <goals>
            <goal>generateAsync</goal>
            <goal>compile</goal>
        </goals>
    </execution>
</executions>
<configuration>
    <hostedWebapp>war</hostedWebapp>
    <runTarget>GWT.html</runTarget>
</configuration>
</plugin>

When I run mvn package on the pom project I get the expected behaviour: projects are build in the correct order, and the war is fine.
When I run mvn gwt:run, though, maven tries to find a gwt app on each module, failing on the first one (the parent) which doesn’t even declare nor manage the gwt plugin.
If I run mvn -fn gwt:run, the build fails on each other project, finally finding a gwt app on the gwt module, and displaying it.

• How do I correctly run the app on hosted mode? Is this the correct behavior?

I do not want the GWT module to be the parent module (if it’s possible), because the project has multiple target platforms, producing the gwt web frontend, a Java executable jar backend and in the future also an Android app, and shares most parts of the code (not only the model). Is a single pom structure recommended for such a setup, or am I failing at maven?

Are profiles what I need? If I do, should I declare the same profile id on each module? How would I prevent the trigger of gwt:run command on them anyway?

• What should the setup of such a project be? Is this the correct setup?

Additional information

Modules are

• pom: declares modules model, logic, analyze, gwt, tests
• model: no dependencies
• logic: no dependencies
• analyze: depends on model, logic
• gwt: depends on model, logic
• tests: depends on model, logic, analyze, gwt (contains global tests,
  not unit tests)

If I run gwt:run on the gwt module i get the error

Could not resolve dependencies for project
djjeck.gwt:djjeck.gwt:war:0.0.1-SNAPSHOT:
Could not find artifact djjeck.model:djjeck.model:jar:0.0.1-SNAPSHOT

This is from djjeck.gwt/pom.xml

<dependency>
    <groupId>djjeck.model</groupId>
    <artifactId>djjeck.model</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <scope>compile</scope>
</dependency>

A com.model-0.0.1-SNAPSHOT.jar is inside the war lib folder, both packed and unpacked, and also inside djjeck.model/target.

Answer 1

Go to the webapp module and then run mvn gwt:run.

You may use profiles to speed up compilation time: one profile could only gwt compile for gecko and english +draftCompile for example.

Have a look at maven GWT plugin multi-module setup if you’re still having problems.