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oracle.toplink.essentials.mappings.OneToOneMapping
java.lang.ClassCastException: oracle.toplink.essentials.mappings.OneToOneMapping	at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.loadPersistenceUnitBundle(PersistenceProcessor.java:458)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.generateDDLFiles(PersistenceProcessor.java:282)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.processAppBundle(PersistenceProcessor.java:170)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.processApplication(PersistenceProcessor.java:112)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.processApplication(DeploymentEventListenerImpl.java:193)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.processEvent(DeploymentEventListenerImpl.java:152)	at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.notifyDeploymentEvent(DeploymentEventListenerImpl.java:109)	at com.sun.enterprise.deployment.backend.DeploymentEventManager.notifyDeploymentEvent(DeploymentEventManager.java:66)	at com.sun.enterprise.deployment.backend.AppDeployer.postDeploy(AppDeployer.java:418)	at com.sun.enterprise.deployment.backend.AppDeployer.deploy(AppDeployer.java:220)	at com.sun.enterprise.deployment.backend.AppDeployer.doRequestFinish(AppDeployer.java:125)	at com.sun.enterprise.deployment.phasing.J2EECPhase.runPhase(J2EECPhase.java:169)	at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:95)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:842)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:260)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:716)	at com.sun.enterprise.management.deploy.DeployThread.deploy(DeployThread.java:165)	at com.sun.enterprise.management.deploy.DeployThread.run(DeployThread.java:194)