This is exactly what the ant plugin is doing [1], I don't know any
workaround.
-Lukas
[1]
http://svn.apache.org/viewvc/maven/maven-1/plugins/trunk/ant/plugin.jelly?revision=405476&view=markup
maarten roosendaal wrote:
The thing is we don't use ANT as a plugin, we simply call an ANT-file with <ant antfile="build.xml"
dir="$build" target="<target>" from a jelly-script which resides in a plugin.
Somehow we have to manipulate the classloader and the option given in the first
URL is unclear. This probably works when you have a dependency to ANT but we
don't.
Are there any other options or should we be looking for another way of doing
this?
thanks,
Maarten
----- Original Message ----
From: Lukas Theussl <[EMAIL PROTECTED]>
To: Maven Users List <[email protected]>
Sent: Monday, June 25, 2007 9:20:03 AM
Subject: Re: Maven 1.1 feat. ANT Classloader problem when using Jasper
Does loading the jsp deps in the root classloader help [1]? However, I
don't think there is a general solution, since maven and ant use a
different classpath, see the remark at the ant:execute goal [2].
HTH,
-Lukas
[1]
http://maven.apache.org/maven-1.x/using/developing-plugins.html#Plugin_dependencies
[2] http://maven.apache.org/maven-1.x/plugins/ant/goals.html
maarten roosendaal wrote:
Hi,
We are trying to convert an ANT (1.6.5) project to a Maven project but first
we have to call the ANT scripts from Maven (1.1). This works fine except when
there is a part in the ANT-script that does JSP compilation.
What we get is a ClassCastException: java.lang.ClassCastException:
org.apache.tools.ant.loader.AntClassLoader2
The problem is that apparently when you run ANT a different Classloader is used
then when you run Maven and call ANT. The JspRuntimeContext-class expects a
URLClassloader as parent but gets an AntClassLoader2. I've found some threads
regarding this problem but no real solution.
We are using a Maven 1.1 custom plugin (with Jelly-scripting) to call
ANT-targets and Maven goals in a specific order.
Does anyone have an idea on how to fix this? Again, the problem only occurs
when we call ANT targets via Maven.
Thanks,
Maarten
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