I always hit the same problem on oracle 1.7 when using the -javaagent enhancer.... it seems to work fine with IBM 1.7.
On Wed, Oct 10, 2012 at 1:54 PM, garpinc <garp...@yahoo.com> wrote: > I installed snapshot openjpa-2.2.1-20121010.180151-3.jar > when I run under JDK 1.7 it results in following exception. JDK 1.6 runs > fine... > > Any ideas? > > java.lang.LinkageError: loader (instance of > sun/misc/Launcher$AppClassLoader): attempted duplicate class definition > for > name: "org/apache/openjpa/jdbc/identifier/DBIdentifier$DBIdentifierType" > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:791) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) > at java.net.URLClassLoader.access$100(URLClassLoader.java:71) > at java.net.URLClassLoader$1.run(URLClassLoader.java:361) > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) > at java.lang.ClassLoader.loadClass(ClassLoader.java:423) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) > at java.lang.ClassLoader.loadClass(ClassLoader.java:356) > at > > org.apache.openjpa.jdbc.sql.DBDictionary.configureNamingRules(DBDictionary.java:513) > at > > org.apache.openjpa.jdbc.sql.DBDictionary.setConfiguration(DBDictionary.java:4673) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:486) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:443) > at > > org.apache.openjpa.jdbc.sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java:199) > at > > org.apache.openjpa.jdbc.sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java:100) > at > > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:603) > at > > org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRepository.java:1518) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:518) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:443) > at > org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:104) > at > > org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68) > at > org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83) > at > > org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:967) > at > > org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:958) > at > > org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:638) > at > > org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:203) > at > > org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60) > at > > > > -- > View this message in context: > http://openjpa.208410.n2.nabble.com/JDK-1-7-seems-to-be-causing-an-issue-with-latest-snapshot-tp7581417.html > Sent from the OpenJPA Users mailing list archive at Nabble.com. > -- *Rick Curtis*
