diff --git a/src/main/org/apache/tools/ant/taskdefs/Copy.java b/src/main/org/apache/tools/ant/taskdefs/Copy.java
index d18d54872..7a177474c 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Copy.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Copy.java
@@ -289,6 +289,16 @@ public class Copy extends Task {
         return mapperElement;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
+
     /**
      * Sets the character encoding
      * @param encoding the character encoding
diff --git a/src/main/org/apache/tools/ant/taskdefs/ExecuteOn.java b/src/main/org/apache/tools/ant/taskdefs/ExecuteOn.java
index f011430a5..06985a274 100644
--- a/src/main/org/apache/tools/ant/taskdefs/ExecuteOn.java
+++ b/src/main/org/apache/tools/ant/taskdefs/ExecuteOn.java
@@ -229,6 +229,16 @@ public class ExecuteOn extends ExecTask {
         return mapperElement;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
+
     /**
      * @todo using taskName here is brittle, as a user could override it.
      *       this should probably be modified to use the classname instead.
diff --git a/src/main/org/apache/tools/ant/taskdefs/Expand.java b/src/main/org/apache/tools/ant/taskdefs/Expand.java
index 8dbdfbc3a..3e7f04255 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Expand.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Expand.java
@@ -336,6 +336,16 @@ public class Expand extends Task {
         return mapperElement;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
+
     /**
      * Sets the encoding to assume for file names and comments.
      *
diff --git a/src/main/org/apache/tools/ant/taskdefs/PathConvert.java b/src/main/org/apache/tools/ant/taskdefs/PathConvert.java
index bc522fb44..f20bf86aa 100644
--- a/src/main/org/apache/tools/ant/taskdefs/PathConvert.java
+++ b/src/main/org/apache/tools/ant/taskdefs/PathConvert.java
@@ -111,7 +111,7 @@ public class PathConvert extends Task {
          * Note that this value is case-insensitive when the build is
          * running on a Windows platform and case-sensitive when running on
          * a Unix platform.
-         * @param from
+         * @param from the prefix string to search for
          */
         public void setFrom(String from) {
             this.from = from;
@@ -169,13 +169,19 @@ public class PathConvert extends Task {
      * windows", "unix", "netware", and "os/2".
      */
     public static class TargetOs extends EnumeratedAttribute {
+        /**
+         * @return the list of values for this enumerated attribute
+         */
         public String[] getValues() {
             return new String[]{"windows", "unix", "netware", "os/2", "tandem"};
         }
     }
 
 
-    /** Create a nested PATH element  */
+    /**
+     * Create a nested PATH element
+     * @return a Path to be used by ant reflection
+     */
     public Path createPath() {
 
         if (isReference()) {
@@ -223,6 +229,7 @@ public class PathConvert extends Task {
      * Set targetos to a platform to one of
      * "windows", "unix", "netware", or "os/2"; required unless
      * unless pathsep and/or dirsep are specified.
+     * @param target the target os
      *
      * @since Ant 1.5
      */
@@ -254,6 +261,7 @@ public class PathConvert extends Task {
 
     /**
      * The property into which the converted path will be placed.
+     * @param p the property name
      */
     public void setProperty(String p) {
         property = p;
@@ -263,6 +271,7 @@ public class PathConvert extends Task {
     /**
      * Adds a reference to a Path, FileSet, DirSet, or FileList defined
      * elsewhere.
+     * @param r the reference to a path, fileset, dirset or filelist
      */
     public void setRefid(Reference r) {
         if (path != null) {
@@ -465,6 +474,18 @@ public class PathConvert extends Task {
         this.mapper = mapper;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        Mapper m = new Mapper(getProject());
+        m.add(fileNameMapper);
+        addMapper(m);
+    }
+
+
     /**
      * Validate that all our parameters have been properly initialized.
      *
diff --git a/src/main/org/apache/tools/ant/taskdefs/UpToDate.java b/src/main/org/apache/tools/ant/taskdefs/UpToDate.java
index 88f3a8e8e..90c559e6c 100644
--- a/src/main/org/apache/tools/ant/taskdefs/UpToDate.java
+++ b/src/main/org/apache/tools/ant/taskdefs/UpToDate.java
@@ -116,6 +116,15 @@ public class UpToDate extends Task implements Condition {
         return mapperElement;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
     /**
      * Evaluate (all) target and source file(s) to
      * see if the target(s) is/are up-to-date.
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/Native2Ascii.java b/src/main/org/apache/tools/ant/taskdefs/optional/Native2Ascii.java
index c68ddf568..0f5d40c0a 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/Native2Ascii.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/Native2Ascii.java
@@ -110,6 +110,16 @@ public class Native2Ascii extends MatchingTask {
         return mapper;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
+
     /**
      * Execute the task
      *