[Fatal Error] :1:1: Content is not allowed in prolog.
  Connection thread terminated abnormally
com.sun.xacml.ParsingException: Error tring to parse RequestType
	at com.sun.xacml.ctx.InputParser.parseInput(InputParser.java:157)
	at com.sun.xacml.ctx.RequestCtx.getInstance(RequestCtx.java:318)
	at PDP.XACML_PDP.evaluate(XACML_PDP.java:121)
	at PDPServer.run(PDPServer.java:54)
Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog.
	at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
	at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
	at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:124)
	at com.sun.xacml.ctx.InputParser.parseInput(InputParser.java:154)
	... 3 more
  Connection thread terminated