connection helper should unwrap transql connection handles

Caused by: org.nuxeo.ecm.core.storage.StorageException: Failed to get ancestors ids
        at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper.getAncestorsIds(JDBCMapper.java:975)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.doInvoke(JDBCMapperConnector.java:22)
        at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.invoke(JDBCMapperConnector.java:56)
        at com.sun.proxy.$Proxy87.getAncestorsIds(Unknown Source)
        at org.nuxeo.ecm.core.storage.sql.SoftRefCachingMapper.getAncestorsIds(SoftRefCachingMapper.java:114)
        at org.nuxeo.ecm.core.storage.sql.SessionImpl.getHierarchyAndAncestors(SessionImpl.java:1350)
        at org.nuxeo.ecm.core.storage.sql.SessionImpl.getNodesByIds(SessionImpl.java:796)
        at org.nuxeo.ecm.core.storage.sql.SessionImpl.getNodesByIds(SessionImpl.java:924)
        at org.nuxeo.ecm.core.storage.sql.ra.ConnectionImpl.getNodesByIds(ConnectionImpl.java:205)
        at org.nuxeo.ecm.core.storage.sql.coremodel.SQLSession.getDocumentsById(SQLSession.java:675)
        ... 54 more
Caused by: java.sql.SQLException
        at org.nuxeo.ecm.core.storage.sql.jdbc.dialect.DialectOracle.createArrayOf(DialectOracle.java:713)
        at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.setToPreparedStatementIdArray(JDBCRowMapper.java:815)
        at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper.getAncestorsIds(JDBCMapper.java:940)
        ... 67 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at org.nuxeo.ecm.core.storage.sql.jdbc.dialect.DialectOracle.createArrayOf(DialectOracle.java:708)
        ... 69 more
Caused by: java.lang.ClassCastException: org.tranql.connector.jdbc.ConnectionHandle cannot be cast to oracle.jdbc.OracleConnection
        at oracle.sql.TypeDescriptor.setPhysicalConnectionOf(TypeDescriptor.java:832)
        at oracle.sql.TypeDescriptor.<init>(TypeDescriptor.java:586)
        at oracle.sql.ArrayDescriptor.<init>(ArrayDescriptor.java:224)
        ... 74 more