1.3.1 does not guarantee backwards compatibility. From my experience there are certain JTDS incompatibility issues on specific versions of windows.
https://sourceforge.net/p/jtds/news/2012/10/jtds-jdbc-driver-127-and-130-released/
문제
Does the jTds 1.3.1 driver work with both JDK 1.6 and JDK 1.7? Or do I need to use jTds 1.2.7 for JDK 1.6 and jTds 1.3.1 for JDK 1.7?
해결책
1.3.1 does not guarantee backwards compatibility. From my experience there are certain JTDS incompatibility issues on specific versions of windows.
https://sourceforge.net/p/jtds/news/2012/10/jtds-jdbc-driver-127-and-130-released/
다른 팁
To use jtds with JDK 6 latest version we can use is jtds 1.2.7.
Detailed discussion about why you can't use 1.3.1 with JDK 6 and other things can be found at
http://sourceforge.net/p/jtds/discussion/104388/thread/f436f063/
jtds 1.2.8 is possible to use with java 1.6. While jtds 1.3.0 is using java 1.7