Marc Claessens created DOXIATOOLS-16:
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             Summary: NullPointerException when site URL is being generated
                 Key: DOXIATOOLS-16
                 URL: https://jira.codehaus.org/browse/DOXIATOOLS-16
             Project: Maven Doxia Tools
          Issue Type: Bug
         Environment: environment independent
            Reporter: Marc Claessens


We have a parent POM where the site url is generated via the Maven Groovy 
plugin, unless it is explicitly defined in the child POM
i.e.

<site>
   <id>project-sites</id>
   <name>Our project Nexus server Site</name>
   <!-- URL is built dynamically by groovy plugin -->
</site>
...

<plugin>
   <groupId>org.codehaus.groovy.maven</groupId>
   <artifactId>gmaven-plugin</artifactId>
   <executions>
        <execution>
        <phase>pre-site</phase>
        <goals>
           <goal>execute</goal>
        </goals>
        <configuration>
        <source>
          <![CDATA[
               if(!project.distributionManagement.site.url){
                    String version = new String(project.version)
                    String path = new String(project.artifactId)+'/'+version
                    project.distributionManagement.site.url 
='dav:'+project.properties['siteBaseURL'] + path
               }
          ]]>

        </source>
        </configuration>
        </execution>
   </executions>
</plugin>
 }

This leads to a NullPointerException in DefaultSiteTool.java:

at java.io.File.<init>(File.java:222)
at 
org.apache.maven.doxia.tools.DefaultSiteTool.urlEncode(DefaultSiteTool.java:1478)
at 
org.apache.maven.doxia.tools.DefaultSiteTool.getDistMgmntSiteUrl(DefaultSiteTool.java:1451)

The if statement in getDistMgntSiteUrl (for both methods) should test for null 
on project.getDistributionManagement().getSite().getUrl()


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