Integrate animal sniffer

Animal sniffer provides tools to assist verifying that classes
compiled with a newer JDK are compatible with an older JDK.

This integratesthe latest version of the tool (1.11) that
permits the use of custom annotations. Added @UsesJava7,
@UsesJava8 and @UsesSunHttpServer and annotated the few places
where we rely on a specific environment.

The verification process can be invoked by running the 'sniff'
task.

Issue: SPR-11604

polishing

spring-web/src/main/java/org/springframework/remoting/caucho/SimpleBurlapServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import java.io.IOException;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
 
+import org.springframework.core.UsesSunHttpServer;
 import org.springframework.util.FileCopyUtils;
 
 /**
@@ -48,6 +49,7 @@ import org.springframework.util.FileCopyUtils;
  * and is effectively retired (in contrast to its sibling Hessian)
  */
 @Deprecated
+@UsesSunHttpServer
 public class SimpleBurlapServiceExporter extends BurlapExporter implements HttpHandler {
 
 	/**

spring-web/src/main/java/org/springframework/remoting/caucho/SimpleHessianServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import java.io.IOException;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
 
+import org.springframework.core.UsesSunHttpServer;
 import org.springframework.util.FileCopyUtils;
 
 /**
@@ -44,6 +45,7 @@ import org.springframework.util.FileCopyUtils;
  * @see org.springframework.remoting.caucho.HessianProxyFactoryBean
  * @see org.springframework.remoting.httpinvoker.SimpleHttpInvokerServiceExporter
  */
+@UsesSunHttpServer
 public class SimpleHessianServiceExporter extends HessianExporter implements HttpHandler {
 
 	/**

spring-web/src/main/java/org/springframework/remoting/httpinvoker/SimpleHttpInvokerServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import java.io.OutputStream;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
 
+import org.springframework.core.UsesSunHttpServer;
 import org.springframework.remoting.rmi.RemoteInvocationSerializingExporter;
 import org.springframework.remoting.support.RemoteInvocation;
 import org.springframework.remoting.support.RemoteInvocationResult;
@@ -51,6 +52,7 @@ import org.springframework.remoting.support.RemoteInvocationResult;
  * @see org.springframework.remoting.caucho.SimpleHessianServiceExporter
  * @see org.springframework.remoting.caucho.SimpleBurlapServiceExporter
  */
+@UsesSunHttpServer
 public class SimpleHttpInvokerServiceExporter extends RemoteInvocationSerializingExporter
 		implements HttpHandler {
 

spring-web/src/main/java/org/springframework/remoting/jaxws/AbstractJaxWsServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.beans.factory.DisposableBean;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.ListableBeanFactory;
 import org.springframework.beans.factory.config.ConfigurableBeanFactory;
+import org.springframework.core.UsesJava7;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 
@@ -189,6 +190,7 @@ public abstract class AbstractJaxWsServiceExporter implements BeanFactoryAware,
 	 * @see Endpoint#create(Object)
 	 * @see Endpoint#create(String, Object)
 	 */
+	@UsesJava7 // Endpoint#create with WebServiceFeature[]
 	protected Endpoint createEndpoint(Object bean) {
 		if (this.endpointFeatures != null || this.webServiceFeatures != null) {
 			WebServiceFeature[] endpointFeaturesToUse = this.endpointFeatures;

spring-web/src/main/java/org/springframework/remoting/jaxws/LocalJaxWsServiceFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ import javax.xml.ws.Service;
 import javax.xml.ws.WebServiceFeature;
 import javax.xml.ws.handler.HandlerResolver;
 
+import org.springframework.core.UsesJava7;
 import org.springframework.core.io.Resource;
 import org.springframework.util.Assert;
 
@@ -146,6 +147,7 @@ public class LocalJaxWsServiceFactory {
 	 * @see #setServiceName
 	 * @see #setWsdlDocumentUrl
 	 */
+	@UsesJava7 // Service#create with WebServiceFeature[]
 	public Service createJaxWsService() {
 		Assert.notNull(this.serviceName, "No service name specified");
 		Service service;

spring-web/src/main/java/org/springframework/remoting/jaxws/SimpleHttpServerJaxWsServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@ import com.sun.net.httpserver.HttpContext;
 import com.sun.net.httpserver.HttpServer;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.springframework.core.UsesSunHttpServer;
 
 /**
  * Simple exporter for JAX-WS services, autodetecting annotated service beans
@@ -46,6 +47,7 @@ import org.apache.commons.logging.LogFactory;
  * @see javax.xml.ws.Endpoint#publish(Object)
  * @see SimpleJaxWsServiceExporter
  */
+@UsesSunHttpServer
 public class SimpleHttpServerJaxWsServiceExporter extends AbstractJaxWsServiceExporter {
 
 	protected final Log logger = LogFactory.getLog(getClass());