java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.apache.xerces.validators.common.XMLValidator.init(XMLValidator.java:1512)
at org.apache.xerces.validators.common.XMLValidator.(XMLValidator.java:403)
at org.apache.xerces.framework.XMLParser.(XMLParser.java:203)
at org.apache.xerces.parsers.SAXParser.(SAXParser.java:164)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at com.air2web.platform.markup.engine.dom.DomEngine.dynamicFactory(DomEngine.java:373)
at com.air2web.platform.markup.engine.dom.DomEngine.(DomEngine.java:507)
at com.air2web.platform.markup.engine.dom.DomEngine.(DomEngine.java:519)
at com.air2web.platform.markup.engine.dom.DomEngineFactory.make(DomEngineFactory.java:16)
at com.air2web.platform.core.resourcepool.ResourcePool.getResource(ResourcePool.java:90)

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