Spring Cleaning in December

- Delete unused imports
- Delete unused code
- Clean up warnings

spring-webmvc-portlet/src/main/java/org/springframework/web/portlet/multipart/CommonsPortletMultipartResolver.java

@@ -146,7 +146,6 @@ public class CommonsPortletMultipartResolver extends CommonsFileUploadSupport
 	 * @return the parsing result
 	 * @throws MultipartException if multipart resolution failed.
 	 */
-	@SuppressWarnings("unchecked")
 	protected MultipartParsingResult parseRequest(ActionRequest request) throws MultipartException {
 		String encoding = determineEncoding(request);
 		FileUpload fileUpload = prepareFileUpload(encoding);

spring-webmvc-portlet/src/test/java/org/springframework/mock/web/portlet/ServletWrappingPortletContext.java

@@ -100,7 +100,6 @@ public class ServletWrappingPortletContext implements PortletContext {
 	}
 
 	@Override
-	@SuppressWarnings("unchecked")
 	public Set<String> getResourcePaths(String path) {
 		return this.servletContext.getResourcePaths(path);
 	}
@@ -116,7 +115,6 @@ public class ServletWrappingPortletContext implements PortletContext {
 	}
 
 	@Override
-	@SuppressWarnings("unchecked")
 	public Enumeration<String> getAttributeNames() {
 		return this.servletContext.getAttributeNames();
 	}
@@ -127,7 +125,6 @@ public class ServletWrappingPortletContext implements PortletContext {
 	}
 
 	@Override
-	@SuppressWarnings("unchecked")
 	public Enumeration<String> getInitParameterNames() {
 		return this.servletContext.getInitParameterNames();
 	}