Upgrade to Spring Framework 3.2.1 and fix warnings

build.gradle

@@ -56,7 +56,7 @@ configure(subprojects.findAll {it.name != 'spring-js-resources'}) { subproject -
     }
 
     subproject.ext {
-      springVersion = '3.2.0.RELEASE'
+      springVersion = '3.2.1.RELEASE'
       springSecurityVersion = '3.1.3.RELEASE'
       slf4jVersion = '1.6.1'
       log4jVersion = '1.2.15'

spring-webflow/src/main/java/org/springframework/webflow/engine/package-info.java

@@ -17,9 +17,9 @@
 /**
  * The implementation of the web flow execution engine.
  *
- * <p>The engine implementation itself is located within the {@link org.springframework.webflow.engine.impl impl}
+ * <p>The engine implementation itself is located within the {@code org.springframework.webflow.engine.impl}
  * package. Builders for assembling flow definitions executable by this engine are located within the
- * {@link org.springframework.webflow.engine.builder builder} package.
+ * {@code org.springframework.webflow.engine.builder} package.
  */
 package org.springframework.webflow.engine;
 

spring-webflow/src/main/java/org/springframework/webflow/mvc/servlet/FlowHandlerAdapter.java

@@ -186,7 +186,6 @@ public class FlowHandlerAdapter extends WebContentGenerator implements HandlerAd
 	 * not mapped to flash scope.
 	 *
 	 * @param saveOutputToFlashScopeOnRedirect
-	 * @see #getFlashOutput(HttpServletRequest, HttpServletResponse, FlowExecutionResult)
 	 */
 	public void setSaveOutputToFlashScopeOnRedirect(boolean saveOutputToFlashScopeOnRedirect) {
 		this.saveOutputToFlashScopeOnRedirect = saveOutputToFlashScopeOnRedirect;

spring-webflow/src/main/java/org/springframework/webflow/upgrade/WebFlowUpgrader.java

@@ -31,16 +31,14 @@ import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.FileSystemResource;
 import org.springframework.core.io.Resource;
 
-import com.sun.org.apache.xml.internal.serializer.OutputPropertiesFactory;
-
 /**
  * Converts Web Flow 1 flow definitions to the version 2 syntax. To use, invoke as a Java application, passing the
  * file-system path to the flow definition you wish to convert as a program argument. The converted flow definition is
  * printed to standard out.
- * 
+ *
  * This class requires a XSLT transformer to run. Saxon is recommended to preserve flow definition formatting and line
  * breaks.
- * 
+ *
  * @author Scott Andrews
  */
 public class WebFlowUpgrader {
@@ -84,8 +82,10 @@ public class WebFlowUpgrader {
 			TransformerFactory factory = TransformerFactory.newInstance();
 			Source source = new StreamSource(xslResource.getInputStream());
 			transformer = factory.newTransformer(source);
-			transformer.setOutputProperty(OutputPropertiesFactory.S_KEY_INDENT_AMOUNT, "4");
+			// com.sun.org.apache.xml.internal.serializer.OutputPropertiesFactory.S_KEY_INDENT_AMOUNT
+			transformer.setOutputProperty("{http://xml.apache.org/xalan}indent-amount", "4");
 		}
 		return transformer;
 	}
+
 }

spring-webflow/src/main/java/org/springframework/webflow/validation/BeanValidationHintResolver.java

@@ -103,7 +103,7 @@ public class BeanValidationHintResolver implements ValidationHintResolver {
 	 * @param flowId the current flow id
 	 * @param stateId the current state id
 	 * @param hint the hint
-	 * @return
+	 * @return the resolved hint
 	 *
 	 * @throws FlowExecutionException
 	 */