Regenerate Vanity URL Feature Running Out of Memory

G'day,

I am using the Regenerate Vanity URL feature on blobs with around 10K assets.It has a pattern like this:

     ${id}/${f:spaceToDash(f:getFileName(ImageFile))}

Even with Min/Max heap set to 1GB/4GB, I am getting the following out of memory error. Is there a known memory leak?

I am assuming you can click on the button and not have to keep the browser window open.

thanks

Matt

[2015-02-24 04:37:32,302 UTC] [ERROR] [.kernel.Default (self-tuning)'] [fatwire.logging.cs.request] Exception including resource /jsp/cs_deployed/OpenMarket/Xcelerate/WebRefPattern/RegenerateURLs.jsp

1. javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space