Some more info on this problem:
The issue is is a ClassLoader delegation model
<http://docs.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html>
problem. If the classpath has in it a path to Groovy 1.7.10 (as it
does), then even if I explicitly add the classpath in Ant as I do below,
the 1.7.10 version will still be used because it has already been
loaded. The only solutions I can think of include:
1. Export all Ant properties and the current classpath to a file. Use
exec to run ant with a classpath that puts the Groovy 2.0.1 directory
before the other directories in the classpath. Then, load the ant
properties and continue.
2. Discover if there is any way of doing dynamic classloading that gets
past the delegation model problem.
If you have any ideas, please send them my way! By mid-week, I'll wind
up doing whatever the best solution there is for this problem, even if
it is (1) above.
Enjoy,
Steve Amerige
SAS Institute, Deployment Developer
On 8/3/2012 1:57 PM, Steve Amerige wrote:
Hi all,
My Ant script is being called with an environment including the
classpath that includes the folder containing the
groovy-all-1.7.10.jar file. I want to execute Groovy 2.0 code from my
Ant script. I cannot change any aspect of how my Ant script is
called. I must limit my solution to that which I can put into my own
Ant script.
My challenge is to figure a way to run groovy 2.0 code. My attempt
below fails to do this. I'm hoping someone will have a solution.
Ideally, it will NOT involve using *exec *because in the groovy code I
will be using AntBuilder to access various tasks, macros, etc. that
are defined back on the Ant side and I want logging information to go
to the same logfile as well.
*Can anyone think of a way to execute some Groovy 2.0 code given that
the classpath already includes a 1.7 Groovy jar file?*
Thanks,
Steve Amerige
SAS Institute, Deployment Developer
Note below that the Groovy system version is 1.7.10, not 2.0.1.
<?xml version="1.0" encoding="UTF-8"?>
<project name="Ant" default="main" basedir=".">
<path id="my.classpath">
<fileset dir="C:/test/groovy-2.0.1/embeddable">
<include name="groovy-all-2.0.1.jar" />
</fileset>
</path>
<taskdef
name="groovy"
classname="org.codehaus.groovy.ant.Groovy"
classpath="C:/test/groovy-2.0.1/embeddable/groovy-all-2.0.1.jar"/>
<target name="main">
<groovy classpathref="my.classpath">
println GroovySystem.getVersion()
println GroovySystem.class.getClassLoader().getURLs().join("\n")
</groovy>
</target>
</project>
Buildfile: C:\test\build.xml
main:
[groovy] *1.7.10*
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-antlr.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-bcel.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-bsf.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-log4j.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-oro.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-regexp.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-apache-resolver.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-commons-logging.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-commons-net.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-jai.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-javamail.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-jdepend.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-jmf.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-jsch.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-junit.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-launcher.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-netrexx.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-nodeps.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-starteam.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-stylebook.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-swing.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-trax.jar
[groovy]
file:/C:/eclipse/plugins/org.apache.ant_1.7.1.v20100518-1145/lib/ant-weblogic.jar
[groovy]
file:/C:/eclipse/configuration/org.eclipse.osgi/bundles/84/1/.cp/lib/remoteAnt.jar
[groovy]
file:/C:/eclipse/configuration/org.eclipse.osgi/bundles/772/1/.cp/lib/antdebug.jar
[groovy]
file:/C:/eclipse/configuration/org.eclipse.osgi/bundles/772/1/.cp/lib/remote.jar
[groovy]
file:/C:/eclipse/configuration/org.eclipse.osgi/bundles/1140/1/.cp/antlibs/remoteAnt.jar
[groovy] file:/C:/Program%20Files/Java/jdk1.6.0_24/lib/tools.jar
[groovy]
file:/C:/eclipse/plugins/org.eclipse.swt.win32.win32.x86_64_3.6.2.v3659c.jar
[groovy] file:/C:/test/ant-contrib/ant-contrib.jar
[groovy]
file:/C:/eclipse/plugins/org.codehaus.groovy_1.7.10.xx-20110918-1400-e36/lib/groovy-all-1.7.10.jar
[groovy] file:/C:/test/json_0.2.0.0_SAS_20100917120500/JSON.jar
BUILD SUCCESSFUL
Total time: 1 second
