Index: src/main/java/org/apache/maven/plugins/site/SiteRunMojo.java
===================================================================
--- src/main/java/org/apache/maven/plugins/site/SiteRunMojo.java	(revision 780339)
+++ src/main/java/org/apache/maven/plugins/site/SiteRunMojo.java	(working copy)
@@ -148,6 +148,7 @@
         webapp.setContextPath( "/" );
         webapp.setResourceBase( tempWebappDirectory.getAbsolutePath() );
         webapp.setAttribute( DoxiaFilter.SITE_RENDERER_KEY, siteRenderer );
+       	webapp.getInitParams().put("org.mortbay.jetty.servlet.Default.useFileMappedBuffer", "false");
 
         // For external reports
         project.getReporting().setOutputDirectory( tempWebappDirectory.getAbsolutePath() );