public void appendToFile(String contents) throws IOException {
		FileWriter fileWritter = new FileWriter(file, true);
		BufferedWriter bufferWritter = new BufferedWriter(fileWritter);
		bufferWritter.write(contents);
		bufferWritter.close();
	}
Support class that represents a tail source.

@author Ilayaperumal Gopinathan
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/TailSource.java