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From Gilles Sadowski <gil...@harfang.homelinux.org>
Subject Re: [Math] How to select a specific JDK ?
Date Wed, 13 Jun 2012 11:56:48 GMT
On Wed, Jun 13, 2012 at 12:48:31PM +0200, Jochen Wiedmann wrote:
> Yes, that switch is called PATH (environment variable).

Do you mean that I should change the PATH variable just to build Commons
Math?
I surely hope that there is a more flexible way.

With "ant", all that's needed is to define JAVA_HOME (another environment
variable, but specific to the task at hand).

> On Wed, Jun 13, 2012 at 12:19 PM, Gilles Sadowski
> <gilles@harfang.homelinux.org> wrote:
> > Hello.
> >
> > Are there command-line switches that will select a specific JDK?
> > I.e. I have several of them installed:
> >
> > $ ls -l /usr/lib/jvm
> > total 36
> > lrwxrwxrwx  1 root root   24 Dec 17 11:04 default-java -> java-1.6.0-openjdk-amd64
> > lrwxrwxrwx  1 root root   18 Jan  5 18:27 java-1.5.0-gcj -> java-1.5.0-gcj-4.6
> > drwxr-xr-x  6 root root 4096 Jan 18 15:04 java-1.5.0-gcj-4.4
> > drwxr-xr-x  6 root root 4096 Mar  7 17:33 java-1.5.0-gcj-4.6
> > lrwxrwxrwx  1 root root   23 Aug 11  2010 java-1.5.0-sun -> java-1.5.0-sun-1.5.0.22
> > drwxr-xr-x 10 root root 4096 Aug 11  2010 java-1.5.0-sun-1.5.0.22
> > lrwxrwxrwx  1 root root   20 Dec 16 18:51 java-1.6.0-openjdk-amd64 -> java-6-openjdk-amd64
> > lrwxrwxrwx  1 root root   20 May  3 14:00 java-1.7.0-openjdk-amd64 -> java-7-openjdk-amd64
> > drwxr-xr-x  3 root root 4096 Jan 18 15:38 java-6-openjdk
> > drwxr-xr-x  7 root root 4096 Mar  7 17:29 java-6-openjdk-amd64
> > drwxr-xr-x  3 root root 4096 Jan 18 15:38 java-6-openjdk-common
> > lrwxrwxrwx  1 root root   19 Jun  9  2011 java-6-sun -> java-6-sun-1.6.0.26
> > drwxr-xr-x  8 root root 4096 Jan 18 15:47 java-6-sun-1.6.0.26
> > drwxr-xr-x  7 root root 4096 Jun  5 17:12 java-7-openjdk-amd64
> > drwxr-xr-x  3 root root 4096 Jun  5 17:12 java-7-openjdk-common
> > lrwxrwxrwx  1 root root   12 Jan  5 18:27 java-gcj -> java-gcj-4.6
> > lrwxrwxrwx  1 root root   18 Apr 29  2010 java-gcj-4.4 -> java-1.5.0-gcj-4.4
> > lrwxrwxrwx  1 root root   18 Nov 14  2011 java-gcj-4.6 -> java-1.5.0-gcj-4.6
> >
> > and I'd like to be able to say something like
> >  -D...=/usr/lib/jvm/java-7-openjdk-amd64
> > so that maven will use the corresponding compiler and JVM.
> >
> > Does the default configuration already cares for this? If so, which are the
> > command-lins options?
> >
> > If not, I guess that this should be defined in a "profile" in
> > "settings.xml". If so, could someone post such a profile?
> >
> >
> > Thanks,
> > Gilles
> >

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