@Before
	public void initialize() throws Exception {
		if (hadoopUtil.fileExists(FilePollHdfsJob.DEFAULT_DIRECTORY)) {
			hadoopUtil.fileRemove(FilePollHdfsJob.DEFAULT_DIRECTORY);
		}
	}
Clears out the test directory

@throws Exception
spring-xd-integration-test/src/test/java/org/springframework/xd/integration/test/FilePollHdfsTest.java