diff --git a/src/main/org/apache/tools/ant/taskdefs/Jar.java b/src/main/org/apache/tools/ant/taskdefs/Jar.java
index 60273fa0a..c652e3e6d 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Jar.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Jar.java
@@ -90,7 +90,7 @@ public class Jar extends Zip {
         fs.setDir(new File(manifest.getParent()));
         fs.setIncludes(manifest.getName());
         fs.setFullpath("META-INF/MANIFEST.MF");
-        super.addFileset(fs);
+        super.addPrefixedfileset(fs);
     }
 
 
diff --git a/src/main/org/apache/tools/ant/taskdefs/War.java b/src/main/org/apache/tools/ant/taskdefs/War.java
index 6f3dea607..7f8b1cc5b 100644
--- a/src/main/org/apache/tools/ant/taskdefs/War.java
+++ b/src/main/org/apache/tools/ant/taskdefs/War.java
@@ -91,25 +91,25 @@ public class War extends Jar {
         fs.setDir(new File(deploymentDescriptor.getParent()));
         fs.setIncludes(deploymentDescriptor.getName());
         fs.setFullpath("WEB-INF/web.xml");
-        super.addFileset(fs);
+        super.addPrefixedfileset(fs);
     }
 
     public void addLib(PrefixedFileSet fs) {
         // We just set the prefix for this fileset, and pass it up.
         fs.setPrefix("WEB-INF/lib/");
-        super.addFileset(fs);
+        super.addPrefixedfileset(fs);
     }
 
     public void addClasses(PrefixedFileSet fs) {
         // We just set the prefix for this fileset, and pass it up.
         fs.setPrefix("WEB-INF/classes/");
-        super.addFileset(fs);
+        super.addPrefixedfileset(fs);
     }
 
     public void addWebinf(PrefixedFileSet fs) {
         // We just set the prefix for this fileset, and pass it up.
         fs.setPrefix("WEB-INF/");
-        super.addFileset(fs);
+        super.addPrefixedfileset(fs);
     }
 
     protected void initZipOutputStream(ZipOutputStream zOut)
diff --git a/src/main/org/apache/tools/ant/taskdefs/Zip.java b/src/main/org/apache/tools/ant/taskdefs/Zip.java
index 84fb19f6d..6f5d03753 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Zip.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Zip.java
@@ -109,7 +109,7 @@ public class Zip extends MatchingTask {
     /**
      * Adds a set of files (nested fileset attribute).
      */
-    public void addFileset(PrefixedFileSet set) {
+    public void addFileset(FileSet set) {
         filesets.addElement(set);
     }
 
@@ -499,22 +499,28 @@ public class Zip extends MatchingTask {
     }
 
     /**
-     * Iterate over the given Vector of prefixedfilesets and add
+     * Iterate over the given Vector of (prefixed)filesets and add
      * all files to the ZipOutputStream using the given prefix.
      */
     protected void addFiles(Vector filesets, ZipOutputStream zOut)
         throws IOException {
         // Add each fileset in the Vector.
         for (int i = 0; i<filesets.size(); i++) {
-            PrefixedFileSet fs = (PrefixedFileSet) filesets.elementAt(i);
+            FileSet fs = (FileSet) filesets.elementAt(i);
             DirectoryScanner ds = fs.getDirectoryScanner(project);
-            String prefix = fs.getPrefix();
+            String prefix = "";
+            String fullpath = "";
+            if (fs instanceof PrefixedFileSet) {
+                PrefixedFileSet pfs = (PrefixedFileSet) fs;
+                prefix = pfs.getPrefix();
+                fullpath = pfs.getFullpath();
+            }
+            
             if (prefix.length() > 0 
                 && !prefix.endsWith("/")
                 && !prefix.endsWith("\\")) {
                 prefix += "/";
             }
-            String fullpath = fs.getFullpath();
             // Need to manually add either fullpath's parent directory, or 
             // the prefix directory, to the archive. 
             if (prefix.length() > 0) {
@@ -522,7 +528,7 @@ public class Zip extends MatchingTask {
                 zipDir(null, zOut, prefix);
             } else if (fullpath.length() > 0) {
                 addParentDirs(null, fullpath, zOut, "");
-			}
+            }
             // Add the fileset.
             addFiles(ds, zOut, prefix, fullpath);
         }