SAXParseException in transaction.xml because of uneven number of schemaLocation URI

I am using the bundle org.apache.aries.transaction.blueprint-2.2.0.jar in a Karaf 4.2.1 environment. I get several warnings in the log file because the schemaLocation value of OSGI-INF/transaction.xml has an uneven number. Does not affect the bundle start, but these warnings should be avoided.

org.xml.sax.SAXParseException: SchemaLocation: schemaLocation-Wert = 'http://www.osgi.org/xmlns/blueprint/v1.0.0' muss eine gerade Anzahl an URIs haben.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) ~[?:?]
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.warning(ErrorHandlerWrapper.java:99) [?:?]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:392) [?:?]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327) [?:?]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:284) [?:?]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:452) [?:?]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.storeLocations(XMLSchemaValidator.java:2347) [?:?]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1754) [?:?]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:740) [?:?]
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374) [?:?]