Not sure you can rely on this if you are forking to another JVM in your <java> task. Could you parse the output of java -version in this case ?
-----Original Message----- From: Ilja Preuß [mailto:preuss@;disy.net] Sent: 08 November 2002 14:00 To: Ant Users List Subject: Re: Checking the java version Looks OK to me. I am using ${java.specification.version} instead of ${ant.java.version} - I don't know wether this makes a difference, though. Regards, Ilja ----- Original Message ----- From: "Xavier Loiseau" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, November 08, 2002 2:41 PM Subject: Checking the java version > Hi, > > > What is the simplest way of checking the java version > before running an application ? > > What is the simplest way of checking the java version > before compiling an application ? > > This is an important issue since several java versions > are often installed in a same computer. > > I have tried to solve both problems through the ant > file that you will find below. > > But I am still wondering if it is the right way of > solving those problems. > > Could anybody confirm that to me ? > > Kind regards. > > > Xav > > > > > <project name="sample" default="build" basedir="../"> > > <target name="run" depends="checkjavaversion"> > <java classname="MyClass" > fork="yes" > classpath="MyClassPath" /> > </target> > > <target name="compile" depends="checkjavaversion"> > <javac classpath="MyClassPath" > srcdir="MySourceDir" > destdir="MyDestDir" > includes="**/*.java" /> > </target> > > <target name="checkjavaversion" > > > <condition property="isJavaVersionCorrect"> > <equals arg1="${ant.java.version}" > arg2="1.3" /> > </condition> > > <fail unless="isJavaVersionCorrect" > message="The java version should be 1.3 !" > /> > > </target> > > </project> > > > > ___________________________________________________________ > Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! > Yahoo! Mail : http://fr.mail.yahoo.com > > -- > To unsubscribe, e-mail: <mailto:ant-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: <mailto:ant-user-help@;jakarta.apache.org> > -- To unsubscribe, e-mail: <mailto:ant-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:ant-user-help@;jakarta.apache.org> -- To unsubscribe, e-mail: <mailto:ant-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:ant-user-help@;jakarta.apache.org>
