And so does CDO. Now it seems that newer versions of some JDBC drivers (e.g. HSQLDB) start to depend on Java 1.6 and, unfortunately, the JDBC API of Java 1.6 is not compatible with its 1.5 pendant.
We're currently discussing how to deal with this problem and we're very interested in your opinion. Please participate in this small poll to give us an impression on whether Java 1.5 support is still needed: