title: Adding plugin.jar to the build path in eclipse in a machine indepenent way
body: <p>I'm working on a project that uses JSObject from the jre's plugin.jar, which isn't included in the build path normally.  I can get things to compile fine by adding the jar to the classpath.  Currently I'm doing this in eclipse via Project->Configure Build Path->Libraries->Add External JARs... -> find the jar in jdk/jre/lib/plugin.jar.  This results in a machine specific path in my .classpath file (like C:/Program Files/Java/jdk1.6.0_16/jre/lib/plugin.jar).  Checking this into our repository obviously breaks the build for developers with different Java install paths or non-windows operating systems.  Is there a way to add jars from the system library using relative paths?</p>