thanks... On Sat, Sep 25, 2010 at 5:18 AM, Ian Murdock <imurd...@imurdock.com> wrote:
> I just spent a very long time tracking down something quite > similar. It turned out the DataNucleus enhancer was > silently failing when using the Eclipse plugin. Running > the enhancer outside Eclipse, I got the attached error > message. In my case, the enhancer was choking on my > class' use of log4j. So, your best bet would be to > take a look at the files in > /var/folders/IC/IC+dB9EIEMmt+1Vn3bGJLU+++TM/-Tmp- > to see if something similar is going on for you. (With > a path like that, it's certainly different on your > machine, but that should probably get you close enough). > > ian-murdocks-macbook$ ant datanucleusenhance > Buildfile: /Users/imurdock/Eclipse/The 9th/build.xml > > datanucleusenhance: > [enhance] DataNucleus Enhancer (version 1.1.4) : Enhancement of classes > [enhance] Encountered a problem: Unexpected exception > [enhance] Please see the logs > > [/var/folders/IC/IC+dB9EIEMmt+1Vn3bGJLU+++TM/-Tmp-/enhance8504617589513481785.log] > for further information. > > BUILD FAILED > /Users/imurdock/Eclipse/The 9th/build.xml:148: The following error > occurred while executing this line: > > /Applications/Eclipse/plugins/com.google.appengine.eclipse.sdkbundle.1.3.7_1.3.7.v201008311427/appengine-java-sdk-1.3.7/config/user/ant-macros.xml:95: > Java returned: 1 > > Total time: 2 seconds > ian-murdocks-macbook$ more > > /var/folders/IC/IC+dB9EIEMmt+1Vn3bGJLU+++TM/-Tmp-/enhance8504617589513481785.log > java.lang.RuntimeException: Unexpected exception > at > com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:59) > at > com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:60) > at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:41) > Caused by: java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:57) > ... 2 more > Caused by: java.lang.NoClassDefFoundError: Lorg/apache/log4j/Logger; > at java.lang.Class.getDeclaredFields0(Native Method) > at java.lang.Class.privateGetDeclaredFields(Class.java:2291) > at java.lang.Class.getDeclaredFields(Class.java:1743) > at > org.datanucleus.metadata.annotations.AbstractAnnotationReader.getFieldAnnotationsForClass(AbstractAnnotationReader.java:289) > at > org.datanucleus.metadata.annotations.AbstractAnnotationReader.getMetaDataForClass(AbstractAnnotationReader.java:143) > at > org.datanucleus.metadata.annotations.AnnotationManagerImpl.getMetaDataForClass(AnnotationManagerImpl.java:136) > at > org.datanucleus.metadata.MetaDataManager.loadAnnotationsForClass(MetaDataManager.java:2278) > at > org.datanucleus.metadata.MetaDataManager.loadClasses(MetaDataManager.java:385) > at > org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:743) > at > org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545) > at > org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252) > ... 7 more > Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger > at > com.google.appengine.tools.enhancer.EnhancerLoader.loadClass(EnhancerLoader.java:85) > at java.lang.ClassLoader.loadClass(ClassLoader.java:248) > ... 18 more > > -ian > > On Fri, Sep 24, 2010 at 11:25 AM, karunakar mamidi > <karunakar.mam...@gmail.com> wrote: > > i am trying to make a persistent class stored in the datastore...i got > > this exception..amnew to app engine ....ppls reply > > > > > > > > Uncaught exception from servlet > > org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException: > > The class "The class "hare.krishna.LoginBean" is not persistable. This > > means that it either hasnt been enhanced, or that the enhanced version > > of the file is not in the CLASSPATH (or is hidden by an unenhanced > > version), or the Meta-Data/annotations for the class are not found." > > is not persistable. This means that it either hasnt been enhanced, or > > that the enhanced version of the file is not in the CLASSPATH (or is > > hidden by an unenhanced version), or the Meta-Data for the class is > > not found. > > > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > > To post to this group, send email to > google-appengine-j...@googlegroups.com. > > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > > > > > > > -- > Ian Murdock > http://ianmurdock.com/ > > "Don't look back--something might be gaining on you." --Satchel Paige > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- Regards, Karunakar Mamidi -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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