taverna-scufl2-t2flow/src/main/java/org/apache/taverna/scufl2/translator/t2flow/defaultactivities/RshellActivityParser.java [140:149]:
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				.getNetSfTavernaT2ActivitiesRshellRShellPortSymanticTypeBean()) {
            ObjectNode port = json.objectNode();
			port.put("port", symanticType.getName());
			String dataType = symanticType.getSymanticType().getValue(); 
			String reference = symanticType.getSymanticType().getReference();
			if (reference != null) {
				Matcher matcher = strangeXpath.matcher(reference);
				if (matcher == null || !matcher.matches())
					throw new ReaderException(
							"Unhandled xstream xpath expression: " + reference);
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taverna-scufl2-t2flow/src/main/java/org/apache/taverna/scufl2/translator/t2flow/defaultactivities/RshellActivityParser.java [173:193]:
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				.getNetSfTavernaT2ActivitiesRshellRShellPortSymanticTypeBean()) {
            ObjectNode port = json.objectNode();
            port.put("port", symanticType.getName());

			String dataType = symanticType.getSymanticType().getValue();
			String reference = symanticType.getSymanticType().getReference();
			if (reference != null) {
				/*
				 * A lovely artifact of xstream 'efficiency' - Xpath
				 * backpointers to previous elements. luckily we are here
				 * restricted within this specific config bean.
				 *
				 * Example:
				 * ../../net.sf.taverna.t2.activities.rshell.RShellPortSymanticTypeBean[3]/symanticType
				 * ../../../inputSymanticTypes/net.sf.taverna.t2.activities.rshell.RShellPortSymanticTypeBean[2]/symanticType
				 */

				Matcher matcher = strangeXpath.matcher(reference);
				if (matcher == null || !matcher.matches())
					throw new ReaderException(
							"Unhandled xstream xpath expression: " + reference);
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