Re: ClassNotFoundException: com.google.gwt.dev.util.Preconditions when compiling with 2.6.0 RC1

On Wednesday, November 13, 2013 6:45:49 PM UTC+1, Boris Brudnoy wrote:

Are you using a third-party library that would make use of this class? (Google GIN used to use it for example, and has not yet made a released with the fix: https://code.google.com/p/google-gin/source/detail?r=278) 

Yes, the project uses GIN. Further down the stack trace there's this (which I missed): 

Caused by: java.lang.NoClassDefFoundError: com/google/gwt/dev/util/Preconditions

at com.google.gwt.inject.rebind.reflect.MethodLiteral.get(MethodLiteral.java:59)

at com.google.gwt.inject.rebind.util.MemberCollector.getTypeMethods(MemberCollector.java:311)

at com.google.gwt.inject.rebind.util.MemberCollector.accumulateMembers(MemberCollector.java:269)

Just checked the diffs for the fix you linked to and confirmed that the old MethodLiteral indeed uses the Preconditions.java now absent from the c.g.g.dev.util package. This implies that projects using GIN won't be able to migrate to GWT 2.6.0 until a new GIN release comes out. Guessing this is going to be a problem for a lot of folks.

Yes, but GIN is made by some of the same team as GWT at Google (e.g. Goktug Gokdogan) so I think there's a good chance that we'll see a GIN 2.1.2 that's compatible with GWT 2.6.

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