core/src/main/java/org/springframework/security/access/method/MapBasedMethodSecurityMetadataSource.java
private void addSecureMethod(RegisteredMethod method, List<ConfigAttribute> attr) {
		Assert.notNull(method, "RegisteredMethod required");
		Assert.notNull(attr, "Configuration attribute required");
		if (logger.isInfoEnabled()) {
			logger.info("Adding secure method [" + method + "] with attributes [" + attr
					+ "]");
		}
		this.methodMap.put(method, attr);
	}
private void addSecureMethod(RegisteredMethod method, List<ConfigAttribute> attr) {
		Assert.notNull(method, "RegisteredMethod required");
		Assert.notNull(attr, "Configuration attribute required");
		if (logger.isInfoEnabled()) {
			logger.info("Adding secure method [" + method + "] with attributes [" + attr
					+ "]");
		}
		this.methodMap.put(method, attr);
	}
Add configuration attributes for a secure method.

@param method the method to be secured
@param attr required authorities associated with the method