@AfterClass
	public static void tearDown() throws Exception {
		singleNodeApplication.close();
		if (originalConfigLocation == null) {
			System.clearProperty("spring.config.location");
		}
		else {
			System.setProperty("spring.config.location", originalConfigLocation);
		}
	}
Tests basic security support in the shell.

@author Marius Bogoevici
spring-xd-shell/src/test/java/org/springframework/xd/shell/security/SecuredShellAccessTests.java