diff --git a/proposal/myrmidon/antlib.xml b/proposal/myrmidon/antlib.xml
index 6ff50788b..1609a5116 100644
--- a/proposal/myrmidon/antlib.xml
+++ b/proposal/myrmidon/antlib.xml
@@ -27,7 +27,6 @@ Legal:
   <property name="gen.dir" value="${build.dir}/gen"/>
 
   <property name="antlib.name" value="NONAME"/>
-  <property name="antlib.include" value="org/apache/antlib/${antlib.name}/**"/>
   <property name="antlib.descriptor" value="${antlib.name}-ant-descriptor.xml"/>
   <property name="antlib.role.descriptor" value="${antlib.name}-ant-roles.xml"/>
 
@@ -40,36 +39,37 @@ Legal:
   </path>
 
   <!-- Main target -->
-  <target name="main" depends="jar" />
-
-  <target name="check-uptodate">
-    <uptodate property="xdoclet.uptodate" targetfile="${gen.dir}/${antlib.descriptor}" >
-      <srcfiles dir= "${java.dir}" includes="${antlib.include}/*.java"/>
-    </uptodate>
+  <target name="main" depends="antlib-jar" />
+
+  <!-- Define the pattern which specifies file to include/exclude
+       in this antlib. -->
+  <target name="antlib-definition">
+      <patternset id="antlib.include">
+        <include name="org/apache/antlib/${antlib.name}/**"/>
+      </patternset>
   </target>
 
   <!-- runs xdoclet if need be -->
-  <target name="xdoclet" depends="check-uptodate" unless="xdoclet.uptodate">
-    <taskdef name="xdoclet" classname="xdoclet.DocletTask" classpathref="project.class.path"/>
-
-    <xdoclet sourcepath="${java.dir}" destdir="${gen.dir}" classpathref="project.class.path">
+  <target name="antlib-descriptors"
+          depends="antlib-definition"
+          unless="antlib-descriptors.omit">
+    <antlib-descriptor libName="${antlib.name}"
+                       destdir="${gen.dir}"
+                       classpathref="project.class.path">
       <fileset dir="${java.dir}">
-        <include name="${antlib.include}/*.java" />
+        <patternset refid="antlib.include"/>
       </fileset>
-      <template templateFile="${manifest.dir}/ant-descriptor.template"
-                destinationfile="${antlib.descriptor}"/>
-      <template templateFile="${manifest.dir}/ant-roles.template"
-                destinationfile="${antlib.role.descriptor}"/>
-    </xdoclet>
+    </antlib-descriptor>
   </target>
 
-  <!-- Creates the jars file -->
-  <target name="jar" depends="xdoclet">
+  <!-- Generate an "atl" jar file for this antlib. -->
+  <target name="antlib-jar" depends="antlib-descriptors">
     <antlib-jar jarfile="${build.lib}/${antlib.name}.atl"
-                basedir="${build.classes}"
                 descriptor="${gen.dir}/${antlib.descriptor}"
                 rolesDescriptor="${gen.dir}/${antlib.role.descriptor}">
-      <include name="${antlib.include}" />
+      <fileset dir="${build.classes}">
+        <patternset refid="antlib.include"/>
+      </fileset>
     </antlib-jar>
   </target>
 
diff --git a/proposal/myrmidon/build.xml b/proposal/myrmidon/build.xml
index c2a395f3b..6fb3fc8e1 100644
--- a/proposal/myrmidon/build.xml
+++ b/proposal/myrmidon/build.xml
@@ -184,14 +184,24 @@ Legal:
 
   <!-- Compiles and installs the custom build tasks -->
   <target name="custom-tasks">
-      <property name="custom-tasks-dir" value="${build.dir}/tasks"/>
-      <mkdir dir="${custom-tasks-dir}"/>
-      <javac srcdir="src/make" destdir="${custom-tasks-dir}">
-          <classpath refid="project.class.path"/>
-      </javac>
-      <taskdef name="antlib-jar" classname="org.apache.myrmidon.build.AntlibJarTask">
-          <classpath location="${custom-tasks-dir}"/>
-      </taskdef>
+    <property name="custom-tasks-dir" value="${build.dir}/tasks"/>
+    <mkdir dir="${custom-tasks-dir}"/>
+    <javac srcdir="src/make" destdir="${custom-tasks-dir}">
+      <classpath refid="project.class.path"/>
+    </javac>
+    <copy file="${manifest.dir}/ant-descriptor.template" todir="${build.dir}/tasks"/>
+    <copy file="${manifest.dir}/ant-roles.template" todir="${build.dir}/tasks"/>
+
+    <taskdef name="antlib-jar" classname="org.apache.myrmidon.build.AntlibJarTask">
+      <classpath location="${custom-tasks-dir}"/>
+    </taskdef>
+
+    <taskdef name="antlib-descriptor" classname="org.apache.myrmidon.build.AntlibDescriptorTask">
+      <classpath>
+        <pathelement location="${custom-tasks-dir}"/>
+        <path refid="project.class.path"/>
+      </classpath>
+    </taskdef>
   </target>
 
   <!-- Compiles the source code -->
@@ -302,23 +312,15 @@ Legal:
 
   </target>
 
-  <!-- Creates the jars file -->
-  <target name="jars" depends="custom-tasks, compile">
-
+  <target name="jar-prepare" depends="custom-tasks, compile">
     <mkdir dir="${build.lib}"/>
 
-    <jar jarfile="${build.lib}/myrmidon-launcher.jar"
-         basedir="${build.classes}"
-         manifest="${manifest.dir}/myrmidon-launcher.mf">
+    <!-- Define the packaging for the various jars -->
+    <patternset id="myrmidon-launcher.include">
       <include name="org/apache/myrmidon/launcher/*" />
-    </jar>
+    </patternset>
 
-    <antlib-jar jarfile="${build.lib}/myrmidon-api.jar"
-                basedir="${build.classes}"
-                manifest="${manifest.dir}/myrmidon-api.mf"
-                rolesDescriptor="${manifest.dir}/builtin-ant-roles.xml"
-                descriptor="${manifest.dir}/builtin-ant-descriptor.xml"
-                servicesDescriptor="${manifest.dir}/core-services.xml" >
+    <patternset id="myrmidon-api.include">
       <include name="org/apache/myrmidon/api/*" />
       <include name="org/apache/myrmidon/aspects/*" />
       <include name="org/apache/myrmidon/converter/*" />
@@ -327,34 +329,91 @@ Legal:
       <include name="org/apache/myrmidon/framework/**" />
       <include name="org/apache/aut/**" />
       <include name="org/apache/tools/**" />
-<!--      <include name="org/apache/myrmidon/*" />
-      <include name="org/apache/myrmidon/components/**"/>
-      <include name="org/apache/myrmidon/frontends/*" /> -->
-    </antlib-jar>
+    </patternset>
+    
+    <patternset id="myrmidon-container.include">
+      <include name="org/apache/myrmidon/components/**" />
+      <include name="org/apache/myrmidon/frontends/*" />
+      <include name="org/apache/myrmidon/*" />
+    </patternset>
 
-<!--
-    <jar jarfile="${build.lib}/myrmidon-framework.jar"
-         basedir="${build.classes}"
-         manifest="${manifest.dir}/myrmidon-framework.mf">
-      <include name="org/apache/myrmidon/framework/**" />
+    <patternset id="selftest.include">
+      <include name="org/apache/antlib/selftest/**" />
+      <exclude name="org/apache/antlib/selftest/extension1/**" />
+    </patternset>
 
-      <zipfileset dir="${manifest.dir}" fullpath="META-INF/ant-roles.xml">
-        <include name="builtin-ant-roles.xml"/>
-      </zipfileset>
+    <patternset id="selftest-extension1.include">
+       <include name="org/apache/antlib/selftest/extension1/**" />
+    </patternset>
+  </target>
 
-      <zipfileset dir="${manifest.dir}" fullpath="META-INF/ant-descriptor.xml">
-        <include name="builtin-ant-descriptor.xml"/>
-      </zipfileset>
+  <!-- The generation of the descriptor is kept separated from the packaging
+       of the jars, since jarring is fast and XDoclet is pretty slow.-->
+  <target name="antlib-descriptors"
+          depends="jar-prepare"
+          unless="antlib-descriptors.omit"
+          description="Generates Antlib descriptors using XDoclet.">
+
+    <!-- The "builtin" descriptors include metainfo for both
+         myrmidon-api and myrmidon-container jars.
+         (Packaged with myrmidon-api.jar). -->
+    <antlib-descriptor libName="builtin"
+                       destdir="${gen.dir}"
+                       classpathref="project.class.path">
+      <fileset dir="${java.dir}">
+        <patternset refid="myrmidon-api.include"/>
+        <patternset refid="myrmidon-container.include"/>
+      </fileset>
+    </antlib-descriptor>
+
+    <antlib-descriptor libName="selftest"
+                       destdir="${gen.dir}"
+                       classpathref="project.class.path">
+      <fileset dir="${java.dir}">
+        <patternset refid="selftest.include"/>
+      </fileset>
+    </antlib-descriptor>
+  </target>
+
+  <!-- Package the jar files -->
+  <target name="jars" depends="antlib-descriptors">
+
+    <jar jarfile="${build.lib}/myrmidon-launcher.jar"
+         basedir="${build.classes}"
+         manifest="${manifest.dir}/myrmidon-launcher.mf">
+        <patternset refid="myrmidon-launcher.include"/>
     </jar>
--->
+
     <jar jarfile="${build.lib}/myrmidon-container.jar"
          basedir="${build.classes}"
          manifest="${manifest.dir}/myrmidon-container.mf">
-      <include name="org/apache/myrmidon/components/**" />
-      <include name="org/apache/myrmidon/frontends/*" />
-      <include name="org/apache/myrmidon/*" />
+        <patternset refid="myrmidon-container.include"/>
     </jar>
 
+    <antlib-jar jarfile="${build.lib}/myrmidon-api.jar"
+                basedir="${build.classes}"
+                manifest="${manifest.dir}/myrmidon-api.mf"
+                rolesDescriptor="${gen.dir}/builtin-ant-roles.xml"
+                descriptor="${gen.dir}/builtin-ant-descriptor.xml"
+                servicesDescriptor="${manifest.dir}/core-services.xml" >
+      <patternset refid="myrmidon-api.include"/>
+    </antlib-jar>
+
+    <antlib-jar jarfile="${build.lib}/selftest.atl"
+                basedir="${build.classes}"
+                manifest="${manifest.dir}/selftest.mf"
+                descriptor="${gen.dir}/selftest-ant-descriptor.xml"
+                rolesDescriptor="${gen.dir}/selftest-ant-roles.xml">
+      <patternset refid="selftest.include"/>
+    </antlib-jar>
+
+    <jar jarfile="${build.lib}/selftest-extension1.jar"
+         basedir="${build.classes}"
+         manifest="${manifest.dir}/selftest-extension1.mf">
+      <patternset refid="selftest-extension1.include" />
+    </jar>
+
+    <!-- Simple cases handled by antlib.xml -->
     <ant antfile="antlib.xml">
       <property name="antlib.name" value="core"/>
     </ant>
@@ -390,22 +449,6 @@ Legal:
     <ant antfile="antlib.xml">
       <property name="antlib.name" value="vfile"/>
     </ant>
-
-    <antlib-jar jarfile="${build.lib}/selftest.atl"
-         basedir="${build.classes}"
-         manifest="${manifest.dir}/selftest.mf"
-         descriptor="${manifest.dir}/selftest-ant-descriptor.xml"
-         rolesDescriptor="${manifest.dir}/empty-roles.xml">
-      <include name="org/apache/antlib/selftest/**" />
-      <exclude name="org/apache/antlib/selftest/extension1/**" />
-    </antlib-jar>
-
-    <jar jarfile="${build.lib}/selftest-extension1.jar"
-         basedir="${build.classes}"
-         manifest="${manifest.dir}/selftest-extension1.mf">
-      <include name="org/apache/antlib/selftest/extension1/**" />
-    </jar>
-
   </target>
 
   <!-- Compiles and runs the unit tests -->
@@ -487,7 +530,9 @@ Legal:
   </target>
 
   <!-- Creates the distribution -->
-  <target name="dist-lite" depends="jars">
+  <target name="dist-lite" 
+          depends="jars"
+          description="Generates a minimal working distribution.">
 
     <mkdir dir="${dist.bin}"/>
     <mkdir dir="${dist.lib}"/>
@@ -529,6 +574,12 @@ Legal:
 
   </target>
 
+  <target name="dist-extralite" 
+          description="A faster version of dist-lite (no XDoclet).">
+      <property name="antlib-descriptors.omit" value="true"/>
+      <antcall target="dist-lite"/>
+  </target>
+
   <!-- Creates the distribution -->
   <target name="dist" depends="dist-lite,test" description="Builds the distribution"/>
 
diff --git a/proposal/myrmidon/src/java/org/apache/antlib/selftest/ExtensionsTest.java b/proposal/myrmidon/src/java/org/apache/antlib/selftest/ExtensionsTest.java
index d8b2a8a30..d23efbc53 100644
--- a/proposal/myrmidon/src/java/org/apache/antlib/selftest/ExtensionsTest.java
+++ b/proposal/myrmidon/src/java/org/apache/antlib/selftest/ExtensionsTest.java
@@ -15,6 +15,7 @@ import org.apache.myrmidon.api.TaskException;
  * This is to test whether extension is loaded.
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ * @ant:task name="extensions-test"
  */
 public class ExtensionsTest
     extends AbstractTask
diff --git a/proposal/myrmidon/src/java/org/apache/antlib/selftest/PrimitiveTypesTest.java b/proposal/myrmidon/src/java/org/apache/antlib/selftest/PrimitiveTypesTest.java
index 95e0d2dbd..d1ddac770 100644
--- a/proposal/myrmidon/src/java/org/apache/antlib/selftest/PrimitiveTypesTest.java
+++ b/proposal/myrmidon/src/java/org/apache/antlib/selftest/PrimitiveTypesTest.java
@@ -14,6 +14,7 @@ import org.apache.myrmidon.api.TaskException;
  * Test conversion of all the primitive types.
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ * @ant:task name="prim-test"
  */
 public class PrimitiveTypesTest
     extends AbstractTask
diff --git a/proposal/myrmidon/src/java/org/apache/aut/nativelib/ExecManager.java b/proposal/myrmidon/src/java/org/apache/aut/nativelib/ExecManager.java
index de3e944a6..4333d5072 100644
--- a/proposal/myrmidon/src/java/org/apache/aut/nativelib/ExecManager.java
+++ b/proposal/myrmidon/src/java/org/apache/aut/nativelib/ExecManager.java
@@ -28,6 +28,7 @@ import java.util.Properties;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:role shorthand="exec-manager"
  */
 public interface ExecManager
 {
diff --git a/proposal/myrmidon/src/java/org/apache/aut/vfs/FileSystemManager.java b/proposal/myrmidon/src/java/org/apache/aut/vfs/FileSystemManager.java
index 3258da340..1c43a9f73 100644
--- a/proposal/myrmidon/src/java/org/apache/aut/vfs/FileSystemManager.java
+++ b/proposal/myrmidon/src/java/org/apache/aut/vfs/FileSystemManager.java
@@ -50,6 +50,7 @@ import java.io.File;
  * </ul>
  *
  * @author Adam Murdoch
+ * @ant:role shorthand="file-system-manager"
  */
 public interface FileSystemManager
 {
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/aspects/NoopAspectHandler.java b/proposal/myrmidon/src/java/org/apache/myrmidon/aspects/NoopAspectHandler.java
index 15a8c1c4c..9eee56b4a 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/aspects/NoopAspectHandler.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/aspects/NoopAspectHandler.java
@@ -12,6 +12,7 @@ package org.apache.myrmidon.aspects;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="aspect" name="noop"
  */
 public class NoopAspectHandler
     extends AbstractAspectHandler
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/ATIProjectBuilder.java b/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/ATIProjectBuilder.java
index c0cf928b3..1fb04a148 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/ATIProjectBuilder.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/ATIProjectBuilder.java
@@ -29,6 +29,7 @@ import org.xml.sax.XMLReader;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="project-builder" name="ati"
  */
 public class ATIProjectBuilder
     extends DefaultProjectBuilder
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/DefaultProjectBuilder.java b/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/DefaultProjectBuilder.java
index 9632f5b62..ce82d3f78 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/DefaultProjectBuilder.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/components/builder/DefaultProjectBuilder.java
@@ -35,6 +35,8 @@ import org.xml.sax.XMLReader;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="project-builder" name="xml"
+ * @ant:type type="project-builder" name="ant"
  */
 public class DefaultProjectBuilder
     extends AbstractLogEnabled
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/ClassicConfigurer.java b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/ClassicConfigurer.java
index bc7c5152c..75a606c04 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/ClassicConfigurer.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/ClassicConfigurer.java
@@ -30,6 +30,7 @@ import org.apache.myrmidon.interfaces.configurer.Configurer;
  * Class used to configure tasks.
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ * @ant:type type="configurer" name="classic"
  */
 public class ClassicConfigurer
     extends AbstractLogEnabled
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/DefaultConfigurer.java b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/DefaultConfigurer.java
index 2f12f2538..c4deb0437 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/DefaultConfigurer.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/DefaultConfigurer.java
@@ -34,6 +34,7 @@ import org.apache.myrmidon.interfaces.type.TypeManager;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="configurer" name="default"
  */
 public class DefaultConfigurer
     extends AbstractLogEnabled
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/framework/Pattern.java b/proposal/myrmidon/src/java/org/apache/myrmidon/framework/Pattern.java
index fc5b739b8..622504e28 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/framework/Pattern.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/framework/Pattern.java
@@ -17,6 +17,7 @@ import org.apache.myrmidon.api.TaskException;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:data-type name="pattern"
  */
 public class Pattern
     implements DataType
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/aspect/AspectManager.java b/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/aspect/AspectManager.java
index 9937e1a78..0e418d415 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/aspect/AspectManager.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/aspect/AspectManager.java
@@ -13,7 +13,7 @@ import org.apache.myrmidon.api.TaskException;
 import org.apache.myrmidon.aspects.AspectHandler;
 
 /**
- * Manage and propogate Aspects.
+ * Manage and propogate Aspects..
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/configurer/Configurer.java b/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/configurer/Configurer.java
index 8f83281b4..6e166fa37 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/configurer/Configurer.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/interfaces/configurer/Configurer.java
@@ -16,6 +16,7 @@ import org.apache.myrmidon.api.Context;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:role shorthand="configurer"
  */
 public interface Configurer
 {
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/ClassicProjectListener.java b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/ClassicProjectListener.java
index 8c81fdc49..2ee93ff3b 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/ClassicProjectListener.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/ClassicProjectListener.java
@@ -15,6 +15,7 @@ import org.apache.avalon.framework.ExceptionUtil;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="listener" name="classic"
  */
 public class ClassicProjectListener
     extends AbstractProjectListener
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/DefaultProjectListener.java b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/DefaultProjectListener.java
index 61dbc4f80..e9d9a41a3 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/DefaultProjectListener.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/DefaultProjectListener.java
@@ -12,6 +12,7 @@ package org.apache.myrmidon.listeners;
  *
  * @author <a href="mailto:peter@apache.org">Peter Donald</a>
  * @version $Revision$ $Date$
+ * @ant:type type="listener" name="default"
  */
 public class DefaultProjectListener
     extends ClassicProjectListener
diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/NoPrefixProjectListener.java b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/NoPrefixProjectListener.java
index 7586cba04..6f85f57ce 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/NoPrefixProjectListener.java
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/listeners/NoPrefixProjectListener.java
@@ -12,7 +12,8 @@ package org.apache.myrmidon.listeners;
  *
  * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
  * @version $Revision$ $Date$
- */
+ * @ant:type type="listener" name="noprefix"
+  */
 public class NoPrefixProjectListener
     extends DefaultProjectListener
 {
diff --git a/proposal/myrmidon/src/manifest/ant-descriptor.template b/proposal/myrmidon/src/manifest/ant-descriptor.template
index 3a4aae10d..53953c48d 100644
--- a/proposal/myrmidon/src/manifest/ant-descriptor.template
+++ b/proposal/myrmidon/src/manifest/ant-descriptor.template
@@ -18,10 +18,10 @@
       </XDtClass:ifHasClassTag>
     </XDtClass:forAllClasses>
 
-    <XDtClass:forAllClasses>
-      <XDtClass:forAllClassTags tagName="ant:type">
-        <<XDtClass:classTagValue tagName="ant:type" paramName="type"/>
-          name="<XDtClass:classTagValue tagName="ant:type" paramName="name"/>"
+    <XDtClass:forAllClasses extent="concrete-type">
+      <XDtClass:forAllClassTags tagName="ant:type" superclasses="false">
+        <<XDtClass:classTagValue tagName="ant:type" paramName="type" superclasses="false"/>
+          name="<XDtClass:classTagValue tagName="ant:type" paramName="name" superclasses="false"/>"
           classname="<XDtClass:fullClassName/>" />
       </XDtClass:forAllClassTags>
     </XDtClass:forAllClasses>