PicketLink unable to parse jboss environment variables such as "jboss.server.config.dir" that may have backslashes in the values

Using jboss environment variables in PicketLink configuration does not work as expected. "jboss.server.config.dir" for instance will have file system path and using this variable "${jboss.server.config.dir}" under the picketlink.xml results in a failure on windows.

jboss.server.config.dir = C:\test\jboss\standalone\configuration

picketlink parses these out using Matcher.appendReplacement but does not attempt to do a "quoteReplacement" to deal with backslash and dollar sign resulting in the property value being read as:

jboss.server.config.dir = C:testjbossstandaloneconfiguration