XSLT Java Mapping javax.xml.parsers.FactoryConfigurationError

Hi

In my XSLT mapping, I call java class. Inside java class, I use DocumentBuilderFactory to parse xml however I receive below error:

Caused by: javax.xml.parsers.FactoryConfigurationError: Provider com.sap.aii.ib.server.mapping.execution.jaxpfactories.MappingDocumentBuilderFactory not found

at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:129)

public static String myMethod(String param1,  Map inputparam)            throws StreamTransformationException {....DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();......

Any ideas?