Compiler warnings when migrating from 2.3 to 2.4 or 2.5-rc1

GWT compile using 2.3.0 appears clean.  When I migrate to 2.4.0 or 2.5.0-rc1 I see the following warnings:

     [java]    Validating units:

     [java]       Ignored 70 units with compilation errors in first pass.

     [java] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.

     [java]    Computing all possible rebind results for 'com.google.gwt.useragent.client.UserAgentAsserter'

     [java]       Rebinding com.google.gwt.useragent.client.UserAgentAsserter

     [java]          Checking rule <generate-with class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>

     [java]             [WARN] Detected warnings related to 'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are validation-api-<version>.jar and validation-api-<version>-sources.jar on the classpath?

     [java]             Specify -logLevel DEBUG to see all errors.

     [java]             [WARN] Unknown type 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred binding rule

I made some modifications to my ivy and build files to make sure that validation-api-1.0.0.GA-sources.jar and validation-api-1.0.0.GA.jar were on the classpath, but this didn't make any difference.

Any ideas how to clean up these warnings?

Thanks!

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