Jetty环境下部署fileserver，下载大文件?报错

我用jetty部署了fileserver，然后下载大文件，小文件可顺利下载。大文件，比如450M的文件只能下载100多M，就不可以了,程序会阻塞到read函数的地方。java下载程序为：

private static final String URL = "http://127.0.0.1:8080/fileserver2/ID:ZJJ-WCDL2-PC-61788-1493276945467-1:1:1:1:1";
    public static void main(String[] args) throws IOException, InterruptedException {  
        URL url = new URL(URL);  
       InputStream inStr =url.openStream();
       
        String filePath = "f:/share/Win2K_SP4_Pro_Update.iso";
        File file = new File(filePath);
        FileOutputStream fos = new FileOutputStream(file);
        byte[] block = new byte[1024*10];// 大小不同，文件就可能损坏。
        int readLength=0;
        long bytesWritten = 0;
         
         
         
        while (true) {
            System.out.println("read ..........");
             readLength = inStr.read(block);
            System.out.println("read .........."+readLength);
             
            if (readLength == -1)
            {
                System.out.println("readLength ... break...."+readLength);
                break;// end of file
            }
            fos.write(block, 0, readLength); // 一定要写入实际读取内容
            bytesWritten += readLength;
             
            System.out.println("bytesWritten...." +bytesWritten);
        }
         
        fos.flush();
        fos.close(); 
         }

服务器上jetty报错信息为：

java.io.IOException: org.eclipse.jetty.util.SharedBlockingCallback$BlockerTimeou
tException
        at org.eclipse.jetty.util.SharedBlockingCallback$Blocker.block(SharedBlo
ckingCallback.java:213)
        at org.eclipse.jetty.server.HttpOutput.sendContent(HttpOutput.java:585)
        at org.eclipse.jetty.servlet.DefaultServlet.sendData(DefaultServlet.java
:960)
        at org.eclipse.jetty.servlet.DefaultServlet.doGet(DefaultServlet.java:53
4)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812
)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(Servlet
Handler.java:1669)
        at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(We
bSocketUpgradeFilter.java:201)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(Servlet
Handler.java:1652)
        at com.cvicse.inforbroker.util.RestFilter.doFilter(RestFilter.java:92)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(Servlet
Handler.java:1652)
        at com.cvicse.inforbroker.util.FilenameGuardFilter.doFilter(FilenameGuar
dFilter.java:50)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(Servlet
Handler.java:1652)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java
:585)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.j
ava:143)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.jav
a:577)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandl
er.java:223)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandl
er.java:1127)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:
515)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandle
r.java:185)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandle
r.java:1061)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.j
ava:141)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(Cont
extHandlerCollection.java:215)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerColl
ection.java:110)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper
.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:499)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.jav
a:258)
        at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java
:544)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPoo
l.java:635)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool
.java:555)
        at java.lang.Thread.run(Unknown Source)

看错误是超时了，但是不知道应该修改哪个地方。附上web.xml配置文件：

<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at
   
  http://www.apache.org/licenses/LICENSE-2.0
   
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!DOCTYPE web-app 
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
    "http://java.sun.com/dtd/web-app_2_3.dtd">
     
<web-app>
 
  <display-name>RESTful file access application</display-name>
 
  <filter>
   <filter-name>RestFilter</filter-name>
   <filter-class>com.cvicse.inforbroker.util.RestFilter</filter-class>
  </filter>
 
  <filter>
   <filter-name>FilenameGuardFilter</filter-name>
   <filter-class>com.cvicse.inforbroker.util.FilenameGuardFilter</filter-class>
  </filter>
 
  <filter-mapping>
   <filter-name>FilenameGuardFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>  
 
  <filter-mapping>
   <filter-name>RestFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>  
    
  <servlet>
    <servlet-name>DefaultServlet</servlet-name>
    <servlet-class>org.eclipse.jetty.servlet.DefaultServlet</servlet-class>
    <init-param>
        <param-name>pathInfoOnly</param-name> <!-- this should be set -->
        <param-value>true</param-value>
    </init-param>
  </servlet>
 
  <servlet-mapping>
   <servlet-name>DefaultServlet</servlet-name>
   <url-pattern>/*</url-pattern>
  </servlet-mapping>
   
</web-app>