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http://jira.codehaus.org/browse/MEXEC-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Milos Kleint reassigned MEXEC-68:
---------------------------------
Assignee: Milos Kleint
> classpath too long problem
> --------------------------
>
> Key: MEXEC-68
> URL: http://jira.codehaus.org/browse/MEXEC-68
> Project: Maven 2.x Exec Plugin
> Issue Type: Bug
> Components: exec
> Affects Versions: 1.1.1
> Environment: windows xp, java 1.6
> Reporter: Mathias Arens
> Assignee: Milos Kleint
> Attachments: exec-maven-plugin-long-classpath.patch
>
>
> If you try to run a project main class with a long list of dependencies the
> classpath grows larger than windows can handle on its command line. The maven
> exec plugin simply fails when the classpath is getting to large.
> The surefire plugin solves this issue by putting the classpath and the main
> class into a Manifest.mf file and wrapping it into a jar. I copied the
> createJar() routine from the ForkConfiguration class from the surefire-booter
> module to the ExecMojo plus two additional classes.
> I introduced a new attribute to the ExecMojo called longClasspath that can be
> set from the command line with -Dexec.longClasspath=true. If this flag is set
> to true a temporary jar file is created and executed. The command line
> arguments '-classpath %classpath mainClass' are replaced by '-jar
> maven-exec.jar' whilst the jar contains the main class and the classpath.
> I added a patch with my current implementation of the ExecMojo class based on
> revision 9948. The patch works perfectly fine even with maven modules that
> have long classpaths and where main classes cannot be executed with the
> current exec-plugin. But in the implementation I made several assumptions on
> the ordering of the command line arguments. I don't know all the assumptions
> are valid. At least the patch is a good starting point for a fix of this
> issue.
> Maybe the default value of the longClasspath attribute should be set to true
> in further releases because this is the default in the surefire plugin as
> well. And maybe somebody has a better attribute name for the longClasspath
> attribute.
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