Add proxyTargetBeans = false and fix some tests

spring-cloud-function-samples/function-sample-pojo/pom.xml

@@ -14,13 +14,13 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.0.BUILD-SNAPSHOT</version>
+		<version>2.2.0.M2</version>
 		<relativePath/>
 	</parent>
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>2.2.0.BUILD-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.0.0.BUILD-SNAPSHOT</spring-cloud-function.version>
 		<wrapper.version>1.0.21.RELEASE</wrapper.version>
 	</properties>
 

spring-cloud-function-samples/function-sample-pojo/src/main/java/com/example/LowercaseConfiguration.java

@@ -27,7 +27,7 @@ import org.springframework.context.annotation.Configuration;
  * @author Dave Syer
  *
  */
-@Configuration
+@Configuration(proxyBeanMethods = false)
 public class LowercaseConfiguration {
 
 	@Bean

spring-cloud-function-samples/function-sample-pojo/src/main/java/com/example/SampleApplication.java

@@ -29,7 +29,7 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.util.MultiValueMap;
 
 // @checkstyle:off
-@SpringBootApplication
+@SpringBootApplication(proxyBeanMethods = false)
 public class SampleApplication {
 
 	public static void main(String[] args) {