GWT Maven build with Place Annotations - gwt

Question

I'm attempting to convert my GWT app to build with maven. The first issue I've his is that the compiler does not seem to like the "#WithTokenizers" I have in my PlaceHistoryMapper - at least that's what I think is failing and if I comment those out the application will compile. Do I need to put some extra configuration in my pom to get this to work? It compiles fine in eclipse or if I attempt the maven build after eclipse has already compiled the GWT source.
Here's the exception I get:
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin
:2.3.2:compile (default-compile) on project product_ui_administration: Compilation failure
\workspaces\java\product_ui_administration\src\main\java\com\company\product\ui\administration\AdminPlaceHistoryMapper.java:[13,0] illega
l start of expression
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure
\workspaces\java\product_ui_administration\src\main\java\com\company\product\ui\administration\AdminPlaceHistoryMapper.java:[13,0] illega
l start of expression
at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
... 19 more
[ERROR]
Here is my AdminPlaceHistoryMapper interface
// this annotation not working in mvn for some reason
#WithTokenizers({
UserDetailsPlace.Tokenizer.class,
UserPermissionsPlace.Tokenizer.class,
CompanyDetailsPlace.Tokenizer.class,
})
public interface AdminPlaceHistoryMapper extends PlaceHistoryMapper {
}

Answer 1

This turned out to be a simple syntax problem that the Eclipse compiler ignored, but the maven GWT compiler flagged.
From the "gwt-maven-plugin Users" Google Group
This seems pretty clear to me, it even gives you the line number...
Anyhow, you can not legally have a comma character at the end of your
Tokenizer list. That is a syntax error. Your Eclipse compiler
tolerated it, but most other compilers will not.
-Jesse