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From "Dennis Lundberg (JIRA)" <j...@codehaus.org>
Subject [jira] Issue Comment Edited: (MSITE-170) [ERROR] VM #displayTree: error : too few arguments to macro
Date Wed, 06 Jun 2007 22:54:59 GMT

    [ http://jira.codehaus.org/browse/MSITE-170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_79854
] 

Dennis Lundberg edited comment on MSITE-170 at 6/6/07 5:53 PM:
---------------------------------------------------------------

Using the most recent nightly snapshot of Jakarta Velocity I did this:
- Install the snapshot of Velocity 1.5 into my local repo
- Update pom.xml for plexus-components/plexus-velocity to use velocity-1.5-dev, update commons-collections
to 3.1 and add a dependency on commons-lang-2.1
- Install plexus-velocity 1.1.4-SNAPSHOT into local repo
- Update pom.xml of doxia-siterenderer to use plexus-velocity 1.1.4-SNAPSHOT
- Install doxia-siterenderer-1.0-alpha-9-SNAPSHOT into local repo
- Install maven-site-plugin-2.0-SNAPSHOT built from source into local repo
- Run 'mvn site' on any project.

The errors about "too many arguments to macro" no longer appears. There are however quite
a lot of warnings, that has not been there before :(


 was:
Using the most recent nightly snapshot of Jakarta Velocity I did this:
- Install the snapshot of Velocity 1.5 into my local repo
- Update pom.xml for plexus-components/plexus-velocity to use velocity-1.5-dev, update commons-logging
to 3.1 and add a dependency on commons-lang-2.1
- Install plexus-velocity 1.1.4-SNAPSHOT into local repo
- Update pom.xml of doxia-siterenderer to use plexus-velocity 1.1.4-SNAPSHOT
- Install doxia-siterenderer-1.0-alpha-9-SNAPSHOT into local repo
- Install maven-site-plugin-2.0-SNAPSHOT built from source into local repo
- Run 'mvn site' on any project.

The errors about "too many arguments to macro" no longer appears. There are however quite
a lot of warnings, that has not been there before :(

> [ERROR] VM #displayTree: error : too few arguments to macro
> -----------------------------------------------------------
>
>                 Key: MSITE-170
>                 URL: http://jira.codehaus.org/browse/MSITE-170
>             Project: Maven 2.x Site Plugin
>          Issue Type: Bug
>    Affects Versions: 2.0-beta-6
>            Reporter: fabrizio giustina
>             Fix For: 2.0-beta-6
>
>
> when running mvn site:site a couple of "too few arguments to macro" always pop up. This
is extremely bad in terms of user experience, and we should find a way to remove these logs:
> [ERROR] VM #displayTree: error : too few arguments to macro. Wanted 2 got 0
> [ERROR] VM #menuItem: error : too few arguments to macro. Wanted 1 got 0
> These errors are due to a known velocity bug related to the use of recursive macros:
> http://issues.apache.org/bugzilla/show_bug.cgi?id=13623
> http://mail-archives.apache.org/mod_mbox/jakarta-velocity-user/200402.mbox/%3COF0D830C11.BA641EAF-ON85256E30.00736DF8@chase.com%3E
> Recursive macros are defined in org/apache/maven/doxia/siterenderer/resources/default-site.vm
in the doxia site-renderer component.
> Logging is handled in the plexus velocity component.
> This velocity bug is still open in velocity and no patch will be available anytime soon.
In the meanwhile we should try to handle this situation in some way by filtering out messages
or removing the use of recursive macros (very hard, they are used to print out the site tree)...
or switching to a better templating engine like freemarker.
> This issue could probably be addressed in the plexus velocity component or in the doxia
site renderer (given that waiting for a bugfixed velocity release is not an option). I'm anyway
assigning it to the site plugin since it's where users see these logs coming from and where
probably users could open similar issues.
> Any suggestion on how to dirty-patch this?

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