Issue #7818 - HttpChannel.Listener.onResponseBegin() Test

+ Confirming behavior.

Signed-off-by: Joakim Erdfelt <joakim.erdfelt@gmail.com>

jetty-server/src/test/java/org/eclipse/jetty/server/HttpChannelEventTest.java

@@ -178,7 +178,7 @@ public void testResponseBeginModifyHeaders() throws Exception
         start(new TestHandler()
         {
             @Override
-            protected void handle(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
+            protected void handle(HttpServletRequest request, HttpServletResponse response)
             {
                 response.setCharacterEncoding("utf-8");
                 response.setContentType("text/plain");