How to exclude a jar from eclipse class path?

How to modify the xml to exclude a jar name开发者_JS百科 which is added to the classpath ? (this jar belongs to other project which the project that I run depends on) how to modify .classpath file?

Open up the .classpath file and remove the corresponding entry.. .classpath file is hidden and is inside the root directory of your eclipse project.

<classpathentry kind="var" path="path-to-jar"/>