Re: how to use jvm option -jre-restrict-search ?
nix wrote:
Hello,
If I install two jdk in two seperate directories then how I can use
the two java runtime ? I find that
java has option -jre-restrict-search . How can I use the option ?
Thanx.
On what platform?
I have no idea how you might install two JVM on Windows. On UNIX/Linux
installation is a matter of unpacking the relevant tar to a location of your
choosing. You can install as many versions of the JVM in this way as you want.
To use any particular JVM just run the relevant command (java, javac, jar, etc.)
from the directory where that JVM is installed. For example I keep my JVM/JDK
in /usr/java and currently have j2sdk1.4.2_06, jdk1.5.0_09, jdk1.6.0_01
installed. To run a java program with the 1.5 JVM I would use the
executable /usr/java/jdk1.5.0_09/bin/java. The executable in that directory
only looks within its own directory tree for libs and jars (other than those
specified on the classpath), i.e. in /usr/java/jdk1.5.0_09/lib
and /usr/java/jdk1.5.0_09/jre.
This only works as long as you don't set any of the java environment variables,
JAVA_HOME, CLASSPATH etc. As soon as you start setting those you severely limit
your choice.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555