Why am I seeing xerces class cast exceptions when deploying my bundle?

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Issue

On deploying a bundle on ServiceMix the following exception occurs: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
On deploying an OSGi bundle on FUSE ESB the exception is thrown: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl

Environment

Fuse ESB 4.X

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