Timeout and hanging threads while XML schema validation

[blueknaw]

I get TimeoutException while validating XML over XSD schema, and the thread associated with checker is hung. Why is it so? How to avoid this?Stack trace:\[code\]TimeoutManage I WTRN0124I: When the timeout occurred the thread with which the transaction is, or was most recently, associated was Thread[WebContainer : 3,5,main]. The stack trace of this thread when the timeout occurred was: java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:140) java.io.BufferedInputStream.fill(BufferedInputStream.java:229) java.io.BufferedInputStream.read1(BufferedInputStream.java:269) java.io.BufferedInputStream.read(BufferedInputStream.java:328) sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:700) sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:645) sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1205) org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source) org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source) org.apache.xerces.impl.xs.opti.SchemaParsingConfig.parse(Unknown Source) org.apache.xerces.impl.xs.opti.SchemaParsingConfig.parse(Unknown Source) org.apache.xerces.impl.xs.opti.SchemaDOMParser.parse(Unknown Source) org.apache.xerces.impl.xs.traversers.XSDHandler.getSchemaDocument(Unknown Source) org.apache.xerces.impl.xs.traversers.XSDHandler.resolveSchema(Unknown Source) org.apache.xerces.impl.xs.traversers.XSDHandler.constructTrees(Unknown Source) org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(Unknown Source) org.apache.xerces.impl.xs.XMLSchemaLoader.loadSchema(Unknown Source) org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(Unknown Source) org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(Unknown Source) org.apache.xerces.jaxp.validation.XMLSchemaFactory.newSchema(Unknown Source) javax.xml.validation.SchemaFactory.newSchema(Unknown Source) my.utils.XmlUtils.validate(XmlUtils.java:38)\[/code\]The code snippet used for validation:\[code\]SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);try { Schema schema = schemaFactory.newSchema(new StreamSource(new StringReader(xsd))); Validator validator = schema.newValidator();...\[/code\]Exception occurs at line:\[code\]Schema schema = schemaFactory.newSchema(new StreamSource(new StringReader(xsd)));\[/code\]