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This parser does not support specification "null" version "null"
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"	at javax.xml.parsers.SAXParserFactory.setSchema(SAXParserFactory.java:419)	at org.apache.commons.digester.Digester.getFactory(Digester.java:536)	at org.apache.commons.digester.Digester.getParser(Digester.java:786)	at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)	at org.apache.commons.digester.Digester.parse(Digester.java:1887)	at org.apache.pluto.driver.services.impl.resource.ResourceConfigReader.parse(ResourceConfigReader.java:63)	at org.apache.pluto.driver.services.impl.resource.PropertyConfigServiceImpl.init(PropertyConfigServiceImpl.java:55)