itw itself warning cleanup: fixed rawtypes and unchecks, added braces and Override

After this clean up only "internal proprietary API and may be removed in a future release" warnings remain fro make check. Please keep itw in this way :)

remaining issues:

    icedtea-web/netx/net/sourceforge/jnlp/cache/ResourceTracker.java:357: warning: [deprecation] toURL() in File has been deprecated
    icedtea-web/netx/net/sourceforge/jnlp/cache/CacheUtil.java:128: warning: [deprecation] toURL() in File has been deprecated
    icedtea-web/netx/net/sourceforge/jnlp/runtime/Boot.java:261: warning: [deprecation] toURL() in File has been deprecated
  There have been a lot of work around cach x file x url escaping, and as main difference between file.tourl and file.touri.tourl is escapin, I rather left it.

    icedtea-web/plugin/icedteanp/java/sun/applet/PluginAppletViewer.java:804: warning: [deprecation] Ref in sun.misc has been deprecated
    icedtea-web/plugin/icedteanp/java/sun/applet/PluginAppletViewer.java:121: warning: [deprecation] Ref in sun.misc has been deprecated
  What can be done?

    icedtea-web/netx/net/sourceforge/jnlp/browser/BrowserAwareProxySelector.java:205: warning: [fallthrough] possible fall-through into case
    icedtea-web/netx/net/sourceforge/jnlp/browser/BrowserAwareProxySelector.java:211: warning: [fallthrough] possible fall-through into case
  This have to be fixed

1 files changed, 2 insertions, 2 deletions

diff --git a/netx/net/sourceforge/nanoxml/XMLElement.java b/netx/net/sourceforge/nanoxml/XMLElement.java
index dab8056..6a6e8b2 100644
--- a/netx/net/sourceforge/nanoxml/XMLElement.java
+++ b/netx/net/sourceforge/nanoxml/XMLElement.java
@@ -372,7 +372,7 @@ public class XMLElement {
      * </ul></dd></dl>
      *
      */
-    public Enumeration enumerateAttributeNames() {
+    public Enumeration<String> enumerateAttributeNames() {
         return this.attributes.keys();
     }
 
@@ -384,7 +384,7 @@ public class XMLElement {
      * </ul></dd></dl>
      *
      */
-    public Enumeration enumerateChildren() {
+    public Enumeration<XMLElement> enumerateChildren() {
         return this.children.elements();
     }