include jar file for only one package

Question

I want to include a jar file which is used by only 1 package in my project.

|____package1
|____package2
|------------class1
|------------class2
|------------newjar

This is since I am trying to run Unit tests that needs a specific classes contained in this jar.
I do not want this jar for other packages, since I have edited this jar and created another jar for the rest of my project.
Not sure if this is allowed. Found a few articles that speak about including the jar in runtime but that is not what I want, alteast thats what I feel.

Answer 1

If you have the ability to edit the jar already, just rename one and include them both. There is no way (that I know of) to add a jar to the build path of only a single package.

Answer 2

If you are creating the jar from your own project then while creating the jar use the package/classes you want to be available in the jar. If you are not creating the jar from your own project, let say you are using ODBC jar. In java build path, we include the complete jar which will be vailable in the classpath. So that we can import the resources when required. Hope this answer your questions.