elk-benchmark/src/main/java/org/semanticweb/elk/benchmark/BenchmarkUtils.java
public static Map<String, String> getSystemProperties(String... names) {
		Map<String, String> propMap = new HashMap<String, String>();

		for (String name : names) {
			checkIfSet(name, propMap);
		}

		return propMap;
	}
public static Map<String, String> getSystemProperties(String... names) {
		Map<String, String> propMap = new HashMap<String, String>();

		for (String name : names) {
			checkIfSet(name, propMap);
		}

		return propMap;
	}
/*
Checks that all System properties are set. We use System properties
(other than cmd args) because they're easier to pass parameters into
maven tests (via Surefire or Failsafe plugins)