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java.sql.SQLException: The url cannot be null	at com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.(Unknown Source)	at com.solarmetric.kodo.impl.jdbc.JDBCPersistenceManagerFactory.loadPersistentTypes(Unknown Source)	at com.solarmetric.kodo.impl.jdbc.JDBCPersistenceManagerFactory.setup(UnknownSource)	at com.solarmetric.kodo.runtime.PersistenceManagerFactoryImpl.freeze(UnknownSource)	at com.solarmetric.kodo.impl.jdbc.ee.EEPersistenceManagerFactory.getPersistenceManagerFactory(Unknown Source)	at java.lang.reflect.Method.invoke(Native Method)	at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:263)	at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:218)	at com.fs.wf.impl.jdo.TestJDO.setUp(TestJDO.java:68)	at junit.framework.TestCase.runBare(TestCase.java:138)	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:131)	at junit.framework.TestSuite.runTest(TestSuite.java:173)	at junit.framework.TestSuite.run(TestSuite.java:168)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:326)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:216)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner..java:151)