Using different PlainJavaApi-Versions in one application?

Hi all,

i am writing an application, which can read a list of hosts with different versions (RTC 4.x,5.x,6.x), because I want to modify/add/delete/etc. programmatically workitems or streams/components/etc....That works fine for every server separately but not successively and automatic, because the problem is i always have to add in my eclipse-project via user libary the relevant PlainJavaApi.

My solution and login is actual via a config-file like that (without the version):

https://localhost:9443/ccm;username;password;v6
https://serverxyz.com/ccm;username;password;v5
https://serveruvw.com/ccm;username,password,v4

Now i added the versions behind the string. After reading i can split my strings to save successively the versions in a variable. Depending on the variable/version, he should use the right PlainJavaApi.

I have tried to add all PlainJavaApi's (4,5,6) to my project, but the eclipse doesn't recognize the right libary. I have to delete the libary and add the next one for every version :(

How can eclipse know which lib he has to use? Or how can i talk to all RTC Versions in one application, does anybody have an idea?

Best Regards!