the canGenerateReport() has just been added to MavenReport: calling it from the site plugin makes all the plugins compiled with an earlier version fail with an AbstractMethodError.

This is intended as a temporary patch to keep the site plugin compatible with existing reports.

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@322499 13f79535-47bb-0310-9956-ffa450edef68

maven-plugins/maven-site-plugin/src/main/java/org/apache/maven/plugins/site/SiteMojo.java

@@ -404,8 +404,21 @@ public class SiteMojo
         for ( Iterator i = reports.iterator(); i.hasNext(); )
         {
             MavenReport report = (MavenReport) i.next();
-            if ( report.canGenerateReport() )
+            try
             {
+                if ( report.canGenerateReport() )
+                {
+                    filteredReports.add( report );
+                }
+            }
+            // the canGenerateReport() has been added just before the 2.0 release and will cause all the reporting 
+            // plugins with an earlier version to fail (most of the codehaus mojo now fails)
+            // be nice with them, output a warning and don't let them break anything
+            catch ( AbstractMethodError e )
+            {
+                getLog().warn(
+                              "Error loading report " + report.getClass().getName()
+                                  + " - AbstractMethodError: canGenerateReport()" );
                 filteredReports.add( report );
             }
         }