Error after upgrading from 2.8.0 to 2.8.1

After upgrading to 2.8.1 i get the folling error:

[INFO]  at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)

[INFO]  at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

[INFO]  at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

[INFO]  at com.google.gwt.dev.Compiler.main(Compiler.java:125)

[INFO] Caused by: java.lang.NoClassDefFoundError: com/google/gwt/user/rebind/rpc/BlacklistTypeFilter$RpcBlacklist

[INFO]  at com.google.gwt.user.rebind.rpc.BlacklistTypeFilter.<init>(BlacklistTypeFilter.java:66)

[INFO]  at com.google.gwt.user.rebind.rpc.ProxyCreator.create(ProxyCreator.java:282)

[INFO]  at com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator.generateIncrementally(ServiceInterfaceProxyGenerator.java:67)

[INFO]  at com.google.gwt.dev.javac.StandardGeneratorContext.runGeneratorIncrementally(StandardGeneratorContext.java:739)

[INFO]  at com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:103)

[INFO]  at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:78)

[INFO]  at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:262)

[INFO]  at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:251)

[INFO]  at com.google.gwt.dev.PrecompilationContextCreator$1.getAllPossibleRebindAnswers(PrecompilationContextCreator.java:86)

But that class is present. Anybody an idea on what could be causing this?

Marteijn

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