KNOX-2142 - Upgrade jetty to 9.4.24.v20191120 (#208)

Signed-off-by: Kevin Risden <krisden@apache.org>
diff --git a/gateway-server/src/main/java/org/apache/knox/gateway/trace/KnoxErrorHandler.java b/gateway-server/src/main/java/org/apache/knox/gateway/trace/KnoxErrorHandler.java
index 93ec1f9..10fefb5 100644
--- a/gateway-server/src/main/java/org/apache/knox/gateway/trace/KnoxErrorHandler.java
+++ b/gateway-server/src/main/java/org/apache/knox/gateway/trace/KnoxErrorHandler.java
@@ -20,6 +20,7 @@
 import org.eclipse.jetty.server.Request;
 import org.eclipse.jetty.server.handler.ErrorHandler;
 
+import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
@@ -35,7 +36,7 @@
 
   @Override
   public void handle( String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response )
-      throws IOException {
+      throws IOException, ServletException {
     HttpServletResponse traceResponse = new TraceResponse( response, bodyFilter );
     super.handle( target, baseRequest, request, traceResponse );
   }
diff --git a/pom.xml b/pom.xml
index 52912a8..041497b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -211,7 +211,7 @@
         <java-support.version>7.5.1</java-support.version>
         <jericho-html.version>3.4</jericho-html.version>
         <jersey.version>2.6</jersey.version>
-        <jetty.version>9.4.22.v20191022</jetty.version>
+        <jetty.version>9.4.24.v20191120</jetty.version>
         <jline.version>2.14.6</jline.version>
         <jna.version>5.5.0</jna.version>
         <joda-time.version>2.10.5</joda-time.version>