Diagnostics.java bug

[Richard Emberson]

In the ant file Diagnostics.java, in method doReportTasksAvailability
change from:
                for (Enumeration keys = props.keys(); 
keys.hasMoreElements();){
                    String key = (String)keys.nextElement();
                    String classname = props.getProperty(key);
                    try {
                        Class.forName(classname);
                        props.remove(key);
                    } catch (Exception ex){
                        out.println(key + " : Not Available");
                    }
to:
                for (Enumeration keys = props.keys(); 
keys.hasMoreElements();){
                    String key = (String)keys.nextElement();
                    String classname = props.getProperty(key);
                    try {
                        Class.forName(classname);
                        props.remove(key);
                    } catch (Exception ex){
                        out.println(key + " : Not Available");
                    } catch (Error e){
                        out.println(key + " : Not Available");
                    }

So that a NoClassDefFoundError does not stop the listing.