Bad version number in .class file

After start of JChemManager I get the next error report:


Java.lang.UnsupportedClassVersionError


Bad version number in .class file


I use Java 1.0.6_03-b05


JRE 6


In Windows menu -> preferences -> Java control panel is locared only one java version and is already activated


The error message indicates that a bad version number was created in the .class file. The .class file was created during installation of java and after java was installed the ChemAxon packet.


I checked also systemvariable


seems to be OK


C:\Program Files\Java\jre1.6.0_03\lib\ojdbc6.jar


Any ideas as to what might be causing this problem?


Thank you for your effort

Hi,





I assume you get the error when trying to connect to the database (at the connection dialog).





Most likely you have installed JChem with an installer with built-in Java (e.g. jchem-3_2_12-windows_with_jre.exe).





The installer installs a private 1.5 Java, which is not visible in the Control Panel.


The JDBC driver you are trying to use (ojdbc6.jar) requires Java 1.6.





Please either


- use ojdbc5.jar


or


- use the installer that comes without Java, or the non-installer version





Please let me know if this helps.





Best regards,





Szilard