BTW, you can see "Content is not allowed in prolog" error for XML and XHTML files if they placed in folders named #{...}
I've created a ticket for that against WTP https://bugs.eclipse.org/bugs/show_bug.cgi?id=382780

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators.
For more information on JIRA, see: http://www.atlassian.com/software/jira