| How should I use classpath variables? [message #198344] |
Thu, 10 March 2005 20:00 |
Eclipse User |
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Originally posted by: wharley.bea.com
I'm trying to access an external jar file (tools.jar, from the 1.5 JDK),
that may be in different places on different machines. My thought was to
define a classpath variable pointing to it, rather than hard-coding the
location.
However, what I find is that when I use a classpath variable, my build
succeeds but I cannot instantiate classes at runtime; if I hard-code the
location instead (with no other changes), everything works fine.
Q1: Am I doing something wrong? Or do classpath variables only work at
build time, not runtime?
Q2: Where can I learn more about what classpath variables are good for and
how they should be used? The Eclipse documentation on this is very sparse.
Q3: What is the right way for a plugin to add a (dynamically discovered) jar
to its classpath at runtime?
Thanks!
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