fix up a lot of the javadoc warnings

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270723 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/build.xml

@@ -460,9 +460,7 @@ Legal:
     <path id="xdoclet.classpath">
       <pathelement location="lib/xdoclet.jar"/>
       <pathelement location="lib/log4j-core.jar"/>
-      <!-- javadoc is needed -->
-      <pathelement path="${java.class.path}"/>
-      <pathelement location="${build.classes}"/>
+      <path refid="project.class.path"/>
     </path>
     <taskdef name="xdoclet"
            classname="xdoclet.DocletTask"