@Override
    public void startProcessing() {
        errorListener = new ErrorListenerAdaptor(getElementId(), locationFactory, errorReceiverProxy);

        try {
            this.handler = XMLUtil.createTransformerHandler(errorListener, false);

        } catch (final TransformerConfigurationException e) {
            errorReceiverProxy.log(Severity.FATAL_ERROR,
                    locationFactory.create(e.getLocator().getLineNumber(), e.getLocator().getColumnNumber()),
                    getElementId(), e.getMessage(), e);
            throw LoggedException.wrap(e);
        } finally {
            super.startProcessing();
        }
    }
@throws SAXException Not thrown.
@see AbstractXMLFilter#startProcessing()
stroom-pipeline/src/main/java/stroom/pipeline/filter/AbstractSamplingFilter.java