GoogleWebToolkitMaven

References and Related Pages

• GWTOpenID - Use of GWT with OpenID & RPX script supplied by myOpenID.
• Generate Async Interfaces - Using Maven to do some of the dirty work of generating a RemoteService.
• HibernateAndMySQL - Using Hibernate and MySQL within GWT.
• GWTMultiModule - Multiple modules within a single "app" or project.

History

• Started this project outside of Maven.
• Looked at one archetype, but didn't get far.
• Found this plugin which seems to take care of a few things:
  • Generating the WAR file as Cypal Studio did
  • Dependency Management as Maven does so well
  • Async creation appears to be managed.

Background

There are a few different projects creating GWT Maven Plugins for Eclipse:

• org.codehaus.mojo
• com.totsp.gwt
• I think I found another one as well.

The Google page recommends using the codehaus versions.

• Just located this post describing some of the conflicts I appear to be bumping into. The page GWTMaven-1.6 describes this attempt.

Install/Configure GWT-Maven Plugin from Google inside Eclipse

Maven specific pieces are loaded as a dependency listed in the pom

1. Update site: http://dl.google.com/eclipse/plugin/3.4.
2. Grab both the plugin and the SDK:

New Project

• Depends on
  • Maven standalone installation
  • M2eclipse plugin for eclipse

1. Run the Maven Archetype

mvn archetype:generate \
   -DarchetypeGroupId=org.codehaus.mojo \
   -DarchetypeArtifactId=gwt-maven-plugin \
   -DarchetypeVersion=1.1 \
   -DgroupId=myGroupId \
   -DartifactId=myArtifactId

This gives me errors that I've been ignoring:

[WARNING] org.apache.velocity.runtime.exception.ReferenceException: reference : template = archetype-resources/pom.xml [line 30,column 16] : ${gwt.version} is not a valid reference.
[WARNING] org.apache.velocity.runtime.exception.ReferenceException: reference : template = archetype-resources/pom.xml [line 36,column 16] : ${gwt.version} is not a valid reference.
[WARNING] org.apache.velocity.runtime.exception.ReferenceException: reference : template = archetype-resources/pom.xml [line 85,column 21] : ${maven.compiler.source} is not a valid reference.
[WARNING] org.apache.velocity.runtime.exception.ReferenceException: reference : template = archetype-resources/pom.xml [line 86,column 21] : ${maven.compiler.target} is not a valid reference.

2. Import the project into Eclipse using Maven wizard

File -> Import -> General -> Maven Projects

3. Configure the project to use Google Web Toolkit

1. Add the "Sandbox" plugin repositories according to this page.
2. Create a Launch configuration (right-click on project -> Run As -> Maven Build …)
   1. Select as a goal gwt:eclipse (org.codehaus.mojo:gwt-maven-plugin:1.1:eclipse).
   2. Save under the name "<app> - Build Run Config".
   3. Run this Launch configuration
   4. A new Google "Web Application" Run Config will then be available for running the app in hosted mode.
3. Since there is a simple app pre-defined when the archetype was generated, you can execute this new Run Config to check that all the pieces have been installed correctly.