delay creation of handler until the MultiPartParser is created

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>

jetty-http/src/main/java/org/eclipse/jetty/http/MultiPartFormInputStream.java

@@ -497,7 +497,6 @@ protected void parse()
         _parsed = true;
 
         MultiPartParser parser = null;
-        Handler handler = new Handler();
         try
         {
             // if its not a multipart request, don't parse it
@@ -530,7 +529,7 @@ else if ("".equals(_config.getLocation()))
                 contentTypeBoundary = QuotedStringTokenizer.unquote(value(_contentType.substring(bstart, bend)).trim());
             }
 
-            parser = new MultiPartParser(handler, contentTypeBoundary);
+            parser = new MultiPartParser(new Handler(), contentTypeBoundary);
             byte[] data = new byte[_bufferSize];
             int len;
             long total = 0;