> i downloaded
> datanucleus-jpa-1.1.2.jar,datanucleus-core-1.1.2.jar,datanucleus-
> enhancer-1.1.2.jar ,put them into  appengine-java-sdk-1.2.0 and remove
> the old 3 lib version 1.0.0,there is an error:
> java.lang.NoClassDefFoundError: Could not initialize class
> org.datanucleus.store.appengine.query.DatastoreQuery
>        at org.datanucleus.store.appengine.query.JPQLQuery.<init>
> (JPQLQuery.java:66)
>        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
>        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown
> Source)
>        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
> Source)
>        at java.lang.reflect.Constructor.newInstance(Unknown Source)
>        at
> org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension
> (NonManagedPluginRegistry.java:576)
>        at org.datanucleus.plugin.PluginManager.createExecutableExtension
> (PluginManager.java:324)
>        at org.datanucleus.store.query.QueryManager.newQuery
> (QueryManager.java:132)
>        at org.datanucleus.jpa.EntityManagerImpl.createQuery
> (EntityManagerImpl.java:721)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>        at java.lang.reflect.Method.invoke(Unknown Source)
>        at org.springframework.orm.jpa.ExtendedEntityManagerCreator
> $ExtendedEntityManagerInvocationHandler.invoke
> (ExtendedEntityManagerCreator.java:358)
>        at $Proxy9.createQuery(Unknown Source)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>        at java.lang.reflect.Method.invoke(Unknown Source)
>        at org.springframework.orm.jpa.JpaTemplate
> $CloseSuppressingInvocationHandler.invoke(JpaTemplate.java:404)
>        at $Proxy10.createQuery(Unknown Source)
>        at jpa.E1Dao$1.doInJpa(E1Dao.java:37)
>        at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:
> 184)
>        at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:
> 147)
>        at jpa.E1Dao.loadAll(E1Dao.java:32)
>        at jpa.E1Dao$$FastClassByCGLIB$$34789f93.invoke(<generated>)
>        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
>        at org.springframework.aop.framework.Cglib2AopProxy
> $CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
>        at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed
> (ReflectiveMethodInvocation.java:149)
>        at
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke
> (TransactionInterceptor.java:106)
>        at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed
> (ReflectiveMethodInvocation.java:171)
>        at
> org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke
> (ExposeInvocationInterceptor.java:89)
>        at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed
> (ReflectiveMethodInvocation.java:171)
>        at org.springframework.aop.framework.Cglib2AopProxy
> $DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
>        at jpa.E1Dao$$EnhancerByCGLIB$$98519cba.loadAll(<generated>)
>        at Env.LocalDatastoreTestCase.testE1Jpa(LocalDatastoreTestCase.java:
> 50)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>        at java.lang.reflect.Method.invoke(Unknown Source)
>        at junit.framework.TestCase.runTest(TestCase.java:168)
>        at junit.framework.TestCase.runBare(TestCase.java:134)
>        at junit.framework.TestResult$1.protect(TestResult.java:110)
>        at junit.framework.TestResult.runProtected(TestResult.java:128)
>        at junit.framework.TestResult.run(TestResult.java:113)
>        at junit.framework.TestCase.run(TestCase.java:124)
>        at junit.framework.TestSuite.runTest(TestSuite.java:232)
>        at junit.framework.TestSuite.run(TestSuite.java:227)
>        at org.junit.internal.runners.OldTestClassRunner.run
> (OldTestClassRunner.java:76)
>        at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run
> (JUnit4TestReference.java:45)
>        at org.eclipse.jdt.internal.junit.runner.TestExecution.run
> (TestExecution.java:38)
>        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
> (RemoteTestRunner.java:460)
>        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
> (RemoteTestRunner.java:673)
>        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run
> (RemoteTestRunner.java:386)
>        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main
> (RemoteTestRunner.java:196)

> On Apr 26, 8:23 am, Atsuhiko Yamanaka <atsuhiko.yaman...@gmail.com>
> wrote:
> > Hi,

> > On Sun, Apr 26, 2009 at 8:39 AM, bryanjswift <bryan.j.sw...@gmail.com>
> wrote:

> > > I've been spending some time lately trying to get JDO annotations to
> > > play nicely with Scala and the AppEngine but I have had no real
> > > success because I continue to get a VerifyError when running the
> > > application using dev_appserver or when using it on appspot if the
> > > annotations are on the Scala class and the enhancement has been
> > > executed.

> > It is a known problem[1], and it has been fixed in
> > datanucleus-enhancer-1.1.2.jar[2].
> > In fact, I have successed to use JPA on Scala/Lift.

> > Download that jar file and locate it under
> >   appengine-java-sdk-1.2.0/lib/tools/orm/
> > It seems we need to rename(or delte) older version;
> > datanucleus-enhancer-1.1.0.jar .

> > [1]http://www.datanucleus.org/servlet/jira/browse/NUCENHANCER-34
> > [2]
> http://sourceforge.net/project/showfiles.php?group_id=222750&package_...

> > Sincerely,
> > --
> > Atsuhiko Yamanaka
> > JCraft,Inc.
> > 1-14-20 HONCHO AOBA-KU,
> > SENDAI, MIYAGI 980-0014 Japan.
> > Tel +81-22-723-2150
> >     +1-415-578-3454
> > Fax +81-22-224-8773
> > Skype callto://jcraft/