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I am sure that I am not the first to encounter this conflict.
The code that I have inherited does the following:
org.w3c.dom.Document dom; // declaration
javax.xml.validation.Schema schema; // declaration
...
...
...
javax.xml.validation.Validator validator = schema.newValidator();
validator.validate(new DOMSource(dom));
where the ... stands for seemingly unimportant/irrelevant code
Compiling and running the code with JDK 6 works (and always had...)
Recently I have had to integrate into my code another component written elsewhere in the company. That component absolutely requires the inclusion in the classpath of xercesImpl-2.8.1.jar
I absolutely require this 3rd party component, but now running the code above no longer works and I get the following:
org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'Root'.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.beginNode(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
at org.apache.xerces.jaxp.validation.ValidatorImpl.validate(Unknown Source)
at javax.xml.validation.Validator.validate(Validator.java:127)
As a solution, I have thought perhaps somehow to shield the xercesImpl-2.8.1.jar in a cl