XSD - CONVERTING XSD DATETIME TO JAVA.UTIL.DATE - java.lang.NoClassDefFoundError: org/apache/xerces/

[thomas davis]

java.lang.NoClassDefFoundError: org/apache/xerces/jaxp/datatype/XMLGregorianCalendarImpl

I am planning to insert date into database.I use XSD to get paraneters from FRONT END UI to my webservice method.
I set all parameters using XSD.

In my XSD,I have the following code
<xs:element name="creationDate" type="xs:dateTime" minOccurs="0"/>

And in my DAO,I have the following code to insert into database.

Date carDate = new java.sql.Timestamp(new java.util.Date().getTime());
if(creditAssessmentRequest.getCreationDate()!=null) {
carDate = creditAssessmentRequest.getCreationDate().toGregorianCalendar().getTime();
}

but I have the following error ,When insert data into database.

] Root cause of ServletException.
java.lang.NoClassDefFoundError: org/apache/xerces/jaxp/datatype/XMLGregorianCalendarImpl
at org.apache.xerces.jaxp.datatype.DatatypeFactoryImpl.newXMLGregorianCalendar(Unknown Source)
at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$13.parse(RuntimeBuiltinLeafInfoImpl.java:546)
at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$13.parse(RuntimeBuiltinLeafInfoImpl.java:520)
at com.sun.xml.bind.v2.runtime.FilterTransducer.parse(FilterTransducer.java:80)
at com.sun.xml.bind.v2.runtime.reflect.TransducedAccessor$CompositeTransducedAccessorImpl.parse(TransducedAccessor.java:241)
Truncated. see log file for complete stacktrace
Caused By: java.lang.ClassNotFoundException: org.apache.xerces.jaxp.datatype.XMLGregorianCalendarImpl
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:296)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:269)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
Truncated. see log file for complete stacktrace

If I want to insert system timestamp,how do I do that?
If I want to insert just Date,how do I do that?