@Override
	public void setEnvironment(Map<String, String> env) {
		String classPath = createClassPath();
		env.put("CLASSPATH", classPath);
	}
@since 1.2
@author Thomas Risberg
@author Gary Russell
extensions/spring-xd-extension-batch/src/main/java/org/springframework/batch/step/tasklet/x/ClasspathEnvironmentProvider.java