Fix on request dispatcher to maintain compatibility with spring 4.3.x and test fixes for older spring

Author: sapessi

aws-serverless-java-container-core/src/main/java/com/amazonaws/serverless/proxy/internal/servlet/AwsProxyRequestDispatcher.java

@@ -39,10 +39,6 @@ public class AwsProxyRequestDispatcher implements RequestDispatcher {
 
 
     public AwsProxyRequestDispatcher(final String target, final boolean namedDispatcher, final AwsLambdaServletContainerHandler handler) {
-        if (!namedDispatcher && !target.startsWith("/")) {
-            throw new UnsupportedOperationException("Only dispatchers with absolute paths are supported");
-        }
-
         isNamedDispatcher = namedDispatcher;
         dispatchTo = target;
         lambdaContainerHandler = handler;

aws-serverless-java-container-spring/src/test/java/com/amazonaws/serverless/proxy/spring/springbootslowapp/TestApplication.java

@@ -5,13 +5,14 @@
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.support.SpringBootServletInitializer;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.PropertySource;
 import org.springframework.stereotype.Component;
 
-
-@SpringBootApplication
-@ComponentScan(basePackages = "com.amazonaws.serverless.proxy.spring.springbootslowapp")
-@PropertySource("classpath:boot-application.properties")
+// Need to explicitly exclude security because of some bizarre witchcraft inside SpringBoot that
+// enables it even when I don't ask for it - this is only true when I test against spring-webmvc 4.3.x
+@SpringBootApplication(exclude = {
+        org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration.class
+})
+@ComponentScan(basePackages="com.amazonaws.serverless.proxy.spring.springbootslowapp")
 public class TestApplication extends SpringBootServletInitializer {
     @Component
     public static class SlowDownInit implements InitializingBean {

aws-serverless-java-container-spring/src/test/java/com/amazonaws/serverless/proxy/spring/springslowapp/MessageController.java

@@ -3,8 +3,10 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
 @RestController
+@EnableWebMvc
 public class MessageController {
     public static final String HELLO_MESSAGE = "Hello";
 

aws-serverless-java-container-spring/src/test/java/com/amazonaws/serverless/proxy/spring/springslowapp/SlowAppConfig.java

@@ -5,9 +5,11 @@
 import org.springframework.context.annotation.Import;
 import org.springframework.stereotype.Component;
 
+
 @Configuration
 @Import({MessageController.class})
 public class SlowAppConfig {
+
     @Component
     public static class SlowDownInit implements InitializingBean {
         public static final int INIT_SLEEP_TIME_MS = 13_000;