BAEL-4100: Move HTTP/2 in Jetty to the new libraries-server-2 module (#9394)

libraries-server-2/src/main/java/com/baeldung/jetty/http2/Http2JettyServlet.java

@@ -0,0 +1,29 @@
+package com.baeldung.jetty.http2;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public class Http2JettyServlet extends HttpServlet {
+
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        response.addHeader("Cache-control", "no-store, no-cache, must-revalidate");
+        response.addDateHeader("Last-Modified", 0);
+        response.addDateHeader("Expires", 0);
+
+        String requestPath = request.getRequestURI();
+        InputStream input = getServletContext().getResourceAsStream(requestPath);
+        OutputStream output = response.getOutputStream();
+        byte[] buffer = new byte[1024];
+        int read;
+        while ((read = input.read(buffer)) >= 0) {
+            output.write(buffer, 0, read);            
+        }
+    }
+    
+}