diff -r 7b249ef11bf7 modules/fxpackager/src/main/java/com/sun/javafx/tools/packager/PackagerLib.java
--- a/modules/fxpackager/src/main/java/com/sun/javafx/tools/packager/PackagerLib.java	Wed Jul 24 17:39:18 2013 +0400
+++ b/modules/fxpackager/src/main/java/com/sun/javafx/tools/packager/PackagerLib.java	Thu Jul 25 10:51:05 2013 -0700
@@ -226,7 +226,19 @@
             try {
                 File newInputJar = File.createTempFile("tempcopy", ".jar");
                 newInputJar.delete();
-                jarToUpdate.renameTo(newInputJar);
+                if (! jarToUpdate.renameTo(newInputJar)) {
+                    InputStream jin = new FileInputStream(jarToUpdate);
+                    OutputStream jout = new FileOutputStream(newInputJar);
+                    byte[] buf = new byte[8192];
+                    for (;;) {
+                        int c = jin.read(buf);
+                        if (c < 0)
+                            break;
+                        jout.write(buf, 0, c);
+                    }
+                    jout.close();
+                    jin.close();
+                }
                 jarToUpdate = newInputJar;
             } catch (IOException ioe) {
                 throw new PackagerException(