@Test
	public void testMaskString() {
		String maskedPassword = PasswordUtils.maskString("12345");
		assertEquals("*****", maskedPassword);
	}
A basic stream definition parameter (parameter in middle of stream) called "password" with value wrapped in quotes should have its value masked
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/rest/PasswordUtilsTests.java