VALIDATION PROBLEMS WERE FOUND problem: cvc-enumeration-valid

Exception:
VALIDATION PROBLEMS WERE FOUND problem: cvc-enumeration-valid:
string value '2.4' is not a valid enumeration value for
web-app-versionType in namespace http://java.sun.com/xml/ns/javaee

Solution:
While I was deploying my project on weblogic server 10.3
I had this exception at deploy ear phase. And I have found
the solution as changing the version of my web.xml
 from 2.4 to 2.5.

java.lang.NoSuchMethodError: com.lowagie.text.Image.getPlainWidth()F

java.lang.NoSuchMethodError: com.lowagie.text.Image.getPlainWidth()F

at net.sf.jasperreports.engine.export.JRPdfExporter.exportImage(JRPdfExporter.java:1219)

at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:675)

at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:641)

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:536)

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:323)

I have changed the jasperreports version to 3.5.0 and itext version from 1.3.1 to 2.1.4 then problem resolved.:)