Adds deprecation warning to starters. Fixes #2148.

spring-cloud-starter-feign/src/main/java/org/springframework/cloud/starter/feign/FeignStarterDeprecationWarningAutoConfiguration.java

@@ -0,0 +1,22 @@
+package org.springframework.cloud.starter.feign;
+
+import javax.annotation.PostConstruct;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Auto configuration to log warning about deprecation of starter
+ * @author Ryan Baxter
+ */
+@Configuration
+@Deprecated
+public class FeignStarterDeprecationWarningAutoConfiguration {
+	private static final Log LOGGER = LogFactory.getLog(FeignStarterDeprecationWarningAutoConfiguration.class);
+
+	@PostConstruct
+	public void logWarning() {
+		LOGGER.warn("spring-cloud-starter-feign is deprecated as of Spring Cloud Netflix 1.4.0, " +
+				"please migrate to spring-cloud-starter-openfeign");
+	}
+}

spring-cloud-starter-feign/src/resources/META-INF/spring.factories

@@ -0,0 +1,3 @@
+# Auto Configure
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+oorg.springframework.cloud.starter.feign.FeignStarterDeprecationWarningAutoConfiguration