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java.lang.NullPointerException: 	at com.microsoft.jdbc.sqlserver.tds.TDSRPCParameter.initializeUserParam(Unknown Source)	at com.microsoft.jdbc.sqlserver.SQLServerImplStatement.addUserParametersToRPC(Unknown Source)	at com.microsoft.jdbc.sqlserver.SQLServerImplStatement.execute(Unknown Source)	at com.microsoft.jdbc.base.BaseStatement.commonExecute(Unknown Source)	at com.microsoft.jdbc.base.BaseStatement.executeUpdateInternal(Unknown Source)	at com.microsoft.jdbc.base.BasePreparedStatement.executeUpdate(Unknown Source)	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:647)	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:703)	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:492)	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:452)	at oracle.toplink.essentials.internal.sessions.AbstractSession.executeCall(AbstractSession.java:690)	at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)	at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:214)	at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.insertObject(DatasourceCallQueryMechanism.java:346)	at oracle.toplink.essentials.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:191)	at oracle.toplink.essentials.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:205)	at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:564)	at oracle.toplink.essentials.queryframework.InsertObjectQuery.executeCommit(InsertObjectQuery.java:89)	at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.performUserDefinedWrite(DatabaseQueryMechanism.java:750)	at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.performUserDefinedInsert(DatabaseQueryMechanism.java:714)	at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.insertObjectForWriteWithChangeSet(DatabaseQueryMechanism.java:602)	at oracle.toplink.essentials.queryframework.WriteObjectQuery.executeCommitWithChangeSet(WriteObjectQuery.java:162)	at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:390)	at oracle.toplink.essentials.queryframework.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:109)	at oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:628)	at oracle.toplink.essentials.queryframework.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:555)	at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:138)	at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:110)	at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2233)	at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:952)	at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:909)	at oracle.toplink.essentials.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:269)	at oracle.toplink.essentials.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:190)	at oracle.toplink.essentials.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:2657)	at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1044)	at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:403)	at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1126)	at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:107)	at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:856)	at oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:102)	at oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:60)	at lobtest.Tests.testTableE_V2(Tests.java:38)	at lobtest.TestHarness.main(TestHarness.java:22)