java - Making Spring Data JPA work with DataNucleus (GAE) (Spring Boot) -

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there several hints spring data works google app engine like:

much of examples not "spring boot" i've been trying retrofit things it. however, i've been stuck error days , days:

[info] caused by: java.lang.nullpointerexception [info]  @ org.datanucleus.api.jpa.metamodel.singularattributeimpl.isversion(singularattributeimpl.java:79) [info]  @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation.findversionattribute(jpametamodelentityinformation.java:102) [info]  @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation.<init>(jpametamodelentityinformation.java:79) [info]  @ org.springframework.data.jpa.repository.support.jpaentityinformationsupport.getmetadata(jpaentityinformationsupport.java:65) [info]  @ org.springframework.data.jpa.repository.support.jparepositoryfactory.getentityinformation(jparepositoryfactory.java:149) [info]  @ org.springframework.data.jpa.repository.support.jparepositoryfactory.gettargetrepository(jparepositoryfactory.java:88) [info]  @ org.springframework.data.jpa.repository.support.jparepositoryfactory.gettargetrepository(jparepositoryfactory.java:68) [info]  @ org.springframework.data.repository.core.support.repositoryfactorysupport.getrepository(repositoryfactorysupport.java:158) [info]  @ org.springframework.data.repository.core.support.repositoryfactorybeansupport.initandreturn(repositoryfactorybeansupport.java:224) [info]  @ org.springframework.data.repository.core.support.repositoryfactorybeansupport.afterpropertiesset(repositoryfactorybeansupport.java:210) [info]  @ org.springframework.data.jpa.repository.support.jparepositoryfactorybean.afterpropertiesset(jparepositoryfactorybean.java:92) [info]  @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory$6.run(abstractautowirecapablebeanfactory.java:1602) [info]  @ java.security.accesscontroller.doprivileged(native method) [info]  @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.invokeinitmethods(abstractautowirecapablebeanfactory.java:1599) [info]  @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.initializebean(abstractautowirecapablebeanfactory.java:1549) [info]  ... 40 more

where, i'm trying use spring data jpa datanucleus/appengine:

@configuration @componentscan @enablejparepositories @enabletransactionmanagement class jpaapplicationconfig {     private static final logger logger = logger             .getlogger(jpaapplicationconfig.class.getname());     @bean     public entitymanagerfactory entitymanagerfactory() {         logger.info("loading entity manager...");         return persistence                 .createentitymanagerfactory("transactions-optional");     }      @bean     public platformtransactionmanager transactionmanager() {         logger.info("loading transaction manager...");         final jpatransactionmanager txmanager = new jpatransactionmanager();         txmanager.setentitymanagerfactory(entitymanagerfactory());         return txmanager;     } }

i've tested persistence.createentitymanagerfactory("transactions-optional"); see if app can persist using emf, well, does, sure emf works fine. problem "wiring" spring data jpa, can help?

do mean issue http://www.datanucleus.org/servlet/jira/browse/nucjpa-250 because seems have been fixed long time ago. have version of gae work version of jpa provider.


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