spring versions

Beware of mixing tools with different Spring versions.

I was using spring ws 1.5.3, and getting the following error

java.lang.NoSuchMethodError: org.springframework.util.ResourceUtils.toURI(Ljava/net/URL;)Ljava/net/URI;
....

Problem is that I had spring 2.0.x on my path, but spring-ws requires spring 2.5.x

Once I updated to using spring 2.5.x the problem was solved.

Could be a nasty problem, since the error message could easily lead you on a wild goose chase