When posting to a windows server from a windows client, the default encoding is cp1252. When an xml request such as this is posted:

<?xml version='1.0' encoding='Cp1252'?><entry xmlns="http://www.w3.org/2005/Atom" xmlns:xml="http://www.w3.org/XML/1998/namespace" xmlns:m="http://docs.oasis-open.org/odata/ns/metadata" xmlns:d="http://docs.oasis-open.org/odata/ns/data" xmlns:gml="http://www.opengis.net/gml" xmlns:georss="http://www.georss.org/georss"><category scheme="http://docs.oasis-open.org/odata/ns/scheme"/>
    <content type="application/xml">
        <m:properties>
            <d:intkey m:type="Int32">4</d:intkey>
            <d:intnum m:type="Int32">4</d:intnum>
            <d:stringkey>4</d:stringkey>
            <d:stringval>value_4</d:stringval>
            <d:booleanval m:type="Boolean">false</d:booleanval>
            <d:decimalval m:type="Double">-20.4</d:decimalval>
            <d:timeval m:type="TimeOfDay">00:00:04</d:timeval>
            <d:dateval m:type="Date">2004-04-04</d:dateval>
            <d:timestampval m:type="DateTimeOffset">2004-01-01T00:00:04Z</d:timestampval>
        </m:properties>
    </content>
</entry>



the following error is logged in the server:

09:54:38,069 WARN  [org.teiid.ODATA] (http-/0.0.0.0:8080-1) TEIID16050 Unable to process odata request due to: An I/O exception occurred. with cause Unsupported encoding: IBM1252: Unsupported encoding: IBM1252
	at org.apache.olingo.server.core.deserializer.xml.ODataXmlDeserializer.entity(ODataXmlDeserializer.java:592)
	at org.apache.olingo.server.core.requests.DataRequest$EntityRequest.getEntityFromClient(DataRequest.java:367)
	at org.apache.olingo.server.core.requests.DataRequest$EntityRequest.execute(DataRequest.java:359)
	at org.apache.olingo.server.core.requests.DataRequest.execute(DataRequest.java:255)
	at org.apache.olingo.server.core.ServiceDispatcher.internalExecute(ServiceDispatcher.java:160)
	at org.apache.olingo.server.core.ServiceDispatcher.execute(ServiceDispatcher.java:98)
	at org.apache.olingo.server.core.OData4HttpHandler.process(OData4HttpHandler.java:66)
	at org.teiid.olingo.web.ODataServlet.service(ODataServlet.java:43) [teiid-olingo-8.12.5.redhat-4.jar:8.12.5.redhat-4]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-2.jar:1.0.2.Final-redhat-2]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.teiid.olingo.web.ODataFilter.internalDoFilter(ODataFilter.java:226) [teiid-olingo-8.12.5.redhat-4.jar:8.12.5.redhat-4]
	at org.teiid.olingo.web.ODataFilter.doFilter(ODataFilter.java:100) [teiid-olingo-8.12.5.redhat-4.jar:8.12.5.redhat-4]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.5.4.Final-redhat-4.jar:7.5.4.Final-redhat-4]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:150) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.11.Final-redhat-1.jar:7.5.11.Final-redhat-1]
	at java.lang.Thread.run(Unknown Source) [rt.jar:1.7.0_79]
Caused by: com.ctc.wstx.exc.WstxIOException: Unsupported encoding: IBM1252
	at com.ctc.wstx.io.StreamBootstrapper.bootstrapInput(StreamBootstrapper.java:247)
	at com.ctc.wstx.stax.WstxInputFactory.doCreateSR(WstxInputFactory.java:546)
	at com.ctc.wstx.stax.WstxInputFactory.createSR(WstxInputFactory.java:600)
	at com.ctc.wstx.stax.WstxInputFactory.createSR(WstxInputFactory.java:615)
	at com.ctc.wstx.stax.WstxInputFactory.createXMLEventReader(WstxInputFactory.java:269)
	at __redirected.__XMLInputFactory.createXMLEventReader(__XMLInputFactory.java:170) [jboss-modules.jar:1.3.7.Final-redhat-1]
	at org.apache.olingo.server.core.deserializer.xml.ODataXmlDeserializer.getReader(ODataXmlDeserializer.java:97)
	at org.apache.olingo.server.core.deserializer.xml.ODataXmlDeserializer.entity(ODataXmlDeserializer.java:583)
	... 26 more