Problem with DynaTableRf Sample with Maven

I get an error when I try to run the DynaTableRf sample application
with maven. Can anyone enlighten me?

Sample app from GWT 2.5.0 release.
Maven 2.2.1

There are four CG errors (one for each domain object?), then I get a
"The RequestFactory ValidationTool..." error.

Adams-MacBook-Pro:DynaTableRf roxton$ mvn gwt:run
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building com.google.gwt.sample.dynatablerf.DynaTableRf
[INFO] task-segment: [gwt:run]
[INFO] ------------------------------------------------------------------------
[INFO] Preparing gwt:run
<snip>
[INFO] [gwt:run {execution: default-cli}]
[INFO] create exploded Jetty webapp in
/Users/roxton/dev/gwt-2.5.0/samples/DynaTableRf/target/DynaTableRf-1.0-SNAPSHOT
[ERROR] Feb 26 15:55:03 Adams-MacBook-Pro.local java[7139] <Error>:
CGContextGetCTM: invalid context 0x0
[ERROR] Feb 26 15:55:03 Adams-MacBook-Pro.local java[7139] <Error>:
CGContextSetBaseCTM: invalid context 0x0
[ERROR] Feb 26 15:55:03 Adams-MacBook-Pro.local java[7139] <Error>:
CGContextGetCTM: invalid context 0x0
[ERROR] Feb 26 15:55:03 Adams-MacBook-Pro.local java[7139] <Error>:
CGContextSetBaseCTM: invalid context 0x0
[INFO] Hibernate Validator 4.1.0.Final
[ERROR] Feb 26, 2013 3:55:22 PM
com.google.web.bindery.requestfactory.server.RequestFactoryServlet
doPost
[ERROR] SEVERE: Unexpected error
[ERROR] java.lang.RuntimeException: The RequestFactory ValidationTool
must be run for the
com.google.gwt.sample.dynatablerf.shared.DynaTableRequestFactory
RequestFactory type
[ERROR] at com.google.web.bindery.requestfactory.vm.impl.Deobfuscator$Builder.load(Deobfuscator.java:57)

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