Setting classpath at runtime?

[L Clarke]

Hi,

I want to set the classpath at runtime, is there a method that aloows
setting/altering (or adding to) the classpath variable at runtime from code?

thanks in advance
lee

 

[Oliver Wong]

Hi,

I want to set the classpath at runtime, is there a method that aloows
setting/altering (or adding to) the classpath variable at runtime from
code?

thanks in advance
lee

You could try System.setProperties(); but it sounds like your question
is too low-level (see
http://www.catb.org/~esr/faqs/smart-questions.html#goal) If your goal is to
change where the JVM searches for loading classes, you may be better off
writing a custom class loader.

- Oliver

 

[Thomas Kellerer]

L Clarke wrote on 16.02.2006 21:11:

Hi,

I want to set the classpath at runtime, is there a method that aloows
setting/altering (or adding to) the classpath variable at runtime from code?

thanks in advance
lee

You will need to use your own classloader. Have a look at URLClassLoader which
will probably do what you want to (load classes from jar files not present in
the classpath at JVM startup I assume)

Thomas

 

[Roedy Green]

I want to set the classpath at runtime, is there a method that aloows
setting/altering (or adding to) the classpath variable at runtime from code?

see http://mindprod.com/jgloss/classloader.html

 

[Stephen]

System.setProperties() will not work.
try URLClassLoader