mvn site:site fails generating the dependencies if the MNG-806 fix is present

mvn site:site fails generating the dependencies when the MNG-806 fix is present.

I'm using this in my pom.xml

<dependency>
<!-- Required to use javac -->
<groupId>sun.jdk</groupId>
<artifactId>tools</artifactId>
<version>1.5</version>
<scope>system</scope>
<systemPath>$

/../lib/tools.jar</systemPath>
</dependency>

Here is the error log:

(...)
[INFO] Generate "Dependencies" report.
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:82)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:63)
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:467)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromRepository(DefaultMavenProjectBuilder.java:225)
at org.apache.maven.report.projectinfo.DependenciesReport$DependenciesRenderer.getMavenProjectFromRepository(DependenciesReport.java:456)
at org.apache.maven.report.projectinfo.DependenciesReport$DependenciesRenderer.printDescriptionsAndURLs(DependenciesReport.java:392)
at org.apache.maven.report.projectinfo.DependenciesReport$DependenciesRenderer.printDescriptionsAndURLs(DependenciesReport.java:429)
at org.apache.maven.report.projectinfo.DependenciesReport$DependenciesRenderer.renderBody(DependenciesReport.java:277)
at org.apache.maven.reporting.AbstractMavenReportRenderer.render(AbstractMavenReportRenderer.java:65)
at org.apache.maven.report.projectinfo.DependenciesReport.executeReport(DependenciesReport.java:97)
at org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:101)
at org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:67)
at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:239)
at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:115)
at org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:124)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:92)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:534)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:488)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:458)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:306)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:140)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:256)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
[INFO] ------------------------------------------------------------------------

If I delete (or comment) this dependency it works perfectly.