[rules-users] error running .brl frules

[Fnu Mahalakshmi]

Hi,
I have {Rule1.drl,Rule2,drl,Rule3.brl}
Both the .drl rules run correctly but the .brl does not load and gives me the following error

I am loading my rules as follows:

    private RuleBase loadRules(String[]  rules) throws Exception{

          PackageBuilder builder = new PackageBuilder();

          for ( int i = 0; i < rules.length; i++ ) {
              String rulesFiles = rules[i];
              //Check the type of rule file, then load it
              System.out.println("loading rule file : "+rulesFiles);
              loadRuleFile(rulesFiles,builder);

          }
          Package pkg = builder.getPackage();
          RuleBase localRuleBase = RuleBaseFactory.newRuleBase();
          localRuleBase.addPackage( pkg );

          return localRuleBase;
    }
private void loadRuleFile(String rulesFiles,PackageBuilder addRulesToThisPackage ) throws DroolsParserException, IOException{
    	int len = rulesFiles.length();
    	if(rulesFiles.substring((len-4), len).equalsIgnoreCase(".brl")){
    		BRXMLPersistence read = (BRXMLPersistence) BRXMLPersistence.getInstance();
        	BRDRLPersistence write = (BRDRLPersistence) BRDRLPersistence.getInstance();
        	String brl = rulesFiles;
        	String outputDRL = write.marshal(read.unmarshal(brl));
        	rulesFiles = outputDRL;
    	}
    	
        Reader source = new InputStreamReader( RuleRunner.class.getResourceAsStream(rulesFiles) );

        //Exception if rule files are not found
        if(null==source){
        	throw new FileNotFoundException("Cannot find rule file:"+rulesFiles);
        }
        //Load the rules , no DSL
        addRulesToThisPackage.addPackageFromDrl(source);
        
        
    }
I get the following error:

[Fatal Error] :1:1: Content is not allowed in prolog.
Exception in thread "main" com.thoughtworks.xstream.io.StreamException:  : Content is not allowed in prolog.
	at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:65)
	at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:47)
	at com.thoughtworks.xstream.XStream.fromXML(XStream.java:781)
	at com.thoughtworks.xstream.XStream.fromXML(XStream.java:773)
	at org.drools.brms.server.util.BRXMLPersistence.unmarshal(BRXMLPersistence.java:91)
	at com.org.RuleRunner.loadRuleFile(RuleRunner.java:65)
	at com.org.RuleRunner.loadRules(RuleRunner.java:42)
	at com.org.RuleRunner.runStatelessRules(RuleRunner.java:90)
	at com.org.RulesTest.main(RulesTest.java:40)
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 com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:58)
	... 8 more


Any Idea?????
Thank you.
M



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