Is it possible to use Spring with JDK 1.3.1?

[dsidelnikov]

Hello All
Is it possible to use Spring with JDK 1.3.1? Wich version should I use?

Best regards
Dmitri

[Andreas Senft]

Yes it is possible. Have a look at the readme.txt delivered with Spring.

Regards,
Andreas

[Rod Johnson]

Yes, Spring (all versions) runs on Java 1.3 and above. There are some optimizations available on 1.4 and an increasing number of new features in Spring 1.2 and 2.0 that are available only on Java 5.

[dsidelnikov]

Hi Andreas.
Thank you for your reply. I've read readme.txt. I try to use Spring 1.2.7 in WebSphere Portal 5.0 (IBM JDK 1.3.1) and errors in logs tell me the next:

java.lang.UnsupportedClassVersionError: Unsupported major.minor version 48.0

I suppose that Spring can run with JDK1.3.1 but compiled with JDK1.4. Is it true?

Best regards,
Dmitri

[Andreas Senft]

From build.xml:

Building Spring requires JDK 1.5+; the releases are built with Sun's JDK 1.5.0.
The test suite is able to run on JDK 1.4 and 1.3 as well.

Regards,
Andreas