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Unable to create second class object proxy for type: "class be.li3.util.history.LongHist".
kodo.util.UnsupportedOptionException: Unable to create second class
object proxy for type: "class be.li3.util.history.LongHist".	at kodo.util.ProxyManagerImpl.newMapProxy(ProxyManagerImpl.java:211)	at kodo.runtime.StateManagerImpl.newFieldProxy(StateManagerImpl.java:1569)	at kodo.runtime.SingleFieldManager.proxy(SingleFieldManager.java:242)	at kodo.runtime.StateManagerImpl.proxyFields(StateManagerImpl.java:3097)	at kodo.runtime.PNonTransState.initialize(PNonTransState.java:32)	at kodo.runtime.StateManagerImpl.setJDOState(StateManagerImpl.java:174)	at kodo.runtime.StateManagerImpl.commit(StateManagerImpl.java:974)	at kodo.runtime.PersistenceManagerImpl.endTransaction(PersistenceManagerImpl.java:1413)	at kodo.runtime.PersistenceManagerImpl.afterCompletion(PersistenceManagerImpl.java:998)	at kodo.runtime.LocalManagedRuntime.commit(LocalManagedRuntime.java:86)	at kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:629)	at be.li3.persistence.jdo.DbSession.store(DbSession.java:185)	at be.li3.persistence.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:316)	at be.li3.domain.dao.PersistenceWrapper.makePersistent(PersistenceWrapper.java:451)	at be.li3.domain.dao.DomainFactory.createPersistentObject(DomainFactory.java:97)	at be.li3.domain.dao.DomainFactory.createPlanningAlternative(DomainFactory.java:605)	at be.li3.domain.dao.DomainFactory.createPlanningAlternative(DomainFactory.java:593)	at be.li3.domain.bo.TestLoadCurveTask.testGetIntervals(TestLoadCurveTask.java:29)	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:585)	at junit.framework.TestCase.runTest(TestCase.java:154)	at junit.framework.TestCase.runBare(TestCase.java:127)	at junit.framework.TestResult$1.protect(TestResult.java:106)	at junit.framework.TestResult.runProtected(TestResult.java:124)	at junit.framework.TestResult.run(TestResult.java:109)	at junit.framework.TestCase.run(TestCase.java:118)	at junit.framework.TestSuite.runTest(TestSuite.java:208)	at junit.framework.TestSuite.run(TestSuite.java:203)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)