org.semanticweb.owl.io.UnparsableOntologyException

I created the owl file with Protégé 5.0 .. But I got this error when I load in java code .. May I know if you have any idea for this.

Thanks & Regards, Su

org.semanticweb.owl.io.UnparsableOntologyException: Problem parsing file:/C:/.../owls/PCOCPG.owl Could not parse ontology. Either a suitable parser could not be found, or parsing failed. See parser logs below for explanation. The following parsers were tried: 1) RDFXMLParser 2) OWLXMLParser 3) OWLFunctionalSyntaxOWLParser 4) TurtleOntologyParser 5) OWLOBOParser 6) KRSS2OWLParser 7) ManchesterOWLSyntaxOntologyParser

Detailed logs:
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Parser: RDFXMLParser
edu.unika.aifb.rdf.api.syntax.RDFParserException: [line=18:column=72] Expecting rdf:RDF element.

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Parser: OWLXMLParser
(Current element Prefix

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Parser: OWLFunctionalSyntaxOWLParser
org.coode.owl.functionalparser.ParseException: Encountered "<" at line 1, column 1.
Was expecting one of:
    "Ontology" ...
    "Namespace" ...
     (Line 0)

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Parser: TurtleOntologyParser
java.net.URISyntaxException: Illegal character in query at index 4: ?xml version="1.0"?

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Parser: OWLOBOParser
org.coode.obo.parser.ParseException: Encountered "<!DOCTYPE Ontology " at line 4, column 1.
Was expecting:
    "\n" ...


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Parser: KRSS2OWLParser
de.uulm.ecs.ai.owl.krssparser.ParseException: Encountered "<?xml version=\"1.0\"?>" at line 1, column 1.
Was expecting one of:
    <EOF> 
    "(" ...
    "end-tbox" ...
    "end-abox" ...


--------------------------------------------------------------------------------
Parser: ManchesterOWLSyntaxOntologyParser
org.coode.manchesterowlsyntax.ManchesterOWLSyntaxParserException: Expected 'Ontology:' <URI>


    at uk.ac.manchester.cs.owl.ParsableOWLOntologyFactory.loadOWLOntology(ParsableOWLOntologyFactory.java:191)
    at uk.ac.manchester.cs.owl.OWLOntologyManagerImpl.loadOntology(OWLOntologyManagerImpl.java:461)
    at uk.ac.manchester.cs.owl.OWLOntologyManagerImpl.loadOntologyFromPhysicalURI(OWLOntologyManagerImpl.java:430)
    at org.bootstrep.onthology.pcocpg.PCOCPGOntology.readOntology(PCOCPGOntology.java:144)
    at org.bootstrep.eventextract.lingpattern.util.ReadConditionPattern.main(ReadConditionPattern.java:451)