Le 6 août 2012 à 14:37, Steve Amerige a écrit :
> 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.
There is a possible hack I guess.
There is a deprecated option to typedef : reverseLoader. If set to true, the
classloader inheritance is inverted.
I don't know why it is deprecated but surely for a good reason, so use it at
your own risk ;)
Nicolas
>
> 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
>>
>>
>
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