@Override
			public void handleError(ClientHttpResponse response) throws IOException {
				outputError(response.getStatusCode(), buffer);
			}
Http commands.

@author Jon Brisbin
@author Ilayaperumal Gopinathan
@author Gunnar Hillert
@author Eric Bottard
@author David Turanski
spring-xd-shell/src/main/java/org/springframework/xd/shell/command/HttpCommands.java