java - Need Spring version# - only have spring.jar file

Question

I've inherited an app that uses Spring. The original developers are not available. The Spring jar file is just "spring.jar", so there's no version# in the filename to help me. I'd like to download the Spring source corresponding to the jar file. The MANIFEST.MF file has "Spring-Version: 1.2" however that's not precise enough. I've looked at version 1.2.1 and 1.2.9 and it doesn't match up quite right. The key thing is that org.springframework.web.servlet.view.AbstractCachingViewResolver has a prepareView method which is called from resolveViewName and it does not seem to be in 1.2.1 or 1.2.9.

Is there any easy way to track down the right version?

Answer 1

This will do it:

import org.springframework.core.SpringVersion;

public class VersionChecker
{
    public static void main(String [] args)
    {
        System.out.println("version: " + SpringVersion.getVersion());
    }
}

Compile and run this with spring.jar in your CLASSPATH and it'll display the version for you. See the javadocs as well.