I found an available reason..
1. The handshake from client of Proposed Standard version of WebSocket.
GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
Origin: http://example.com
Sec-WebSocket-Protocol: chat, superchat
Sec-WebSocket-Version: 13
I guess, chrome will send a message to server with this format.
Error occurred at 201 line in upgrade method in WebSocketFactory class
in jetty 8.0.4
200
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#200>
*for* (Enumeration
e=request.getHeaders("Sec-WebSocket-Extensions");e.hasMoreElements();)201
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#201>
{202
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#202>
QuotedStringTokenizer
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/util/QuotedStringTokenizer.html>
tok = *new* QuotedStringTokenizer
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/util/QuotedStringTokenizer.html>((String)e.nextElement(),",");203
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#203>
*while* (tok.hasMoreTokens())204
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#204>
extensions_requested.add(tok.nextToken());205
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#205>
}206
<http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/websocket/WebSocketFactory.html#206>
Handshake from client has no "Sec-WebSocket-Extensions" header..
This is the reason of NullPointerException I think....
Is that right...?
On Fri, Dec 23, 2011 at 4:24 PM, Seonhong Ahn <[email protected]>wrote:
>
> Hi all ^^
>
> I develop a websocket application with jetty 8.0.4..
>
> I have a problem like this..
>
>
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> [INFO] Scanning for projects...
> [WARNING] The POM for org.mortbay.jetty:maven-jetty-plugin:jar:8.0.4 is
> missing, no dependency information available
> [WARNING] Failed to retrieve plugin descriptor for
> org.mortbay.jetty:maven-jetty-plugin:8.0.4: Plugin
> org.mortbay.jetty:maven-jetty-plugin:8.0.4 or one of its dependencies could
> not be resolved: Failed to read artifact descriptor for
> org.mortbay.jetty:maven-jetty-plugin:jar:8.0.4
> [INFO]
>
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building jetty8 Maven Webapp 0.0.1-SNAPSHOT
> [INFO]
> ------------------------------------------------------------------------
> [WARNING] The POM for org.mortbay.jetty:maven-jetty-plugin:jar:8.0.4 is
> missing, no dependency information available
> [WARNING] Failed to retrieve plugin descriptor for
> org.mortbay.jetty:maven-jetty-plugin:8.0.4: Plugin
> org.mortbay.jetty:maven-jetty-plugin:8.0.4 or one of its dependencies could
> not be resolved: Failed to read artifact descriptor for
> org.mortbay.jetty:maven-jetty-plugin:jar:8.0.4
> [INFO]
> [INFO] >>> jetty-maven-plugin:8.1.0.RC1:run (default-cli) @ jetty8 >>>
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @
> jetty8 ---
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] Copying 0 resource
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ jetty8
> ---
> [INFO] Nothing to compile - all classes are up to date
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:testResources
> (default-testResources) @ jetty8 ---
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] Copying 0 resource
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @
> jetty8 ---
> [INFO] Nothing to compile - all classes are up to date
> [INFO]
> [INFO] <<< jetty-maven-plugin:8.1.0.RC1:run (default-cli) @ jetty8 <<<
> [INFO]
> [INFO] --- jetty-maven-plugin:8.1.0.RC1:run (default-cli) @ jetty8 ---
> [INFO] Configuring Jetty for project: jetty8 Maven Webapp
> [INFO] webAppSourceDirectory
> E:\eGovFrameDev-2.0.0-FullVer\workspace\jetty8\src\main\webapp does not
> exist. Defaulting to
> E:\eGovFrameDev-2.0.0-FullVer\workspace\jetty8\src\main\webapp
> [INFO] Reload Mechanic: automatic
> [INFO] Classes =
> E:\eGovFrameDev-2.0.0-FullVer\workspace\jetty8\target\classes
> 2011-12-23 15:39:42.578:INFO:oejs.Server:jetty-8.1.0.RC1
> [INFO] Context path = /
> [INFO] Tmp directory =
> E:\eGovFrameDev-2.0.0-FullVer\workspace\jetty8\target\tmp
> [INFO] Web defaults = org/eclipse/jetty/webapp/webdefault.xml
> [INFO] Web overrides = none
> [INFO] web.xml file =
> file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/WEB-INF/web.xml
> [INFO] Webapp directory =
> E:\eGovFrameDev-2.0.0-FullVer\workspace\jetty8\src\main\webapp
> 2011-12-23 15:39:43.244:INFO:oejpw.PlusConfiguration:No Transaction
> manager found - if your webapp requires one, please configure one.
> 2011-12-23 15:39:45.531:INFO:oejsh.ContextHandler:started
> o.m.j.p.JettyWebAppContext{/,file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/},file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/PocWebSocketServletContextListener
> has received a servlet context event.
>
> 2011-12-23 15:39:45.531:INFO:oejsh.ContextHandler:started
> o.m.j.p.JettyWebAppContext{/,file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/},file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/
> 2011-12-23 15:39:45.531:INFO:oejsh.ContextHandler:started
> o.m.j.p.JettyWebAppContext{/,file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/},file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/
> PocWebSocketHandler is created.
> 2011-12-23 15:39:45.558:INFO:oejs.Server:jetty-8.1.0.RC1
> 2011-12-23 15:39:45.591:INFO:oejs.AbstractConnector:Started
> [email protected]:8081 STARTING
> 2011-12-23 15:39:45.616:INFO:oejsh.ContextHandler:started
> o.m.j.p.JettyWebAppContext{/,file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/},file:/E:/eGovFrameDev-2.0.0-FullVer/workspace/jetty8/src/main/webapp/
> 2011-12-23 15:39:45.653:INFO:oejs.AbstractConnector:Started
> [email protected]:8080 STARTING
> [INFO] Started Jetty Server
> PocWebSocket is created.
> 2011-12-23 15:40:49.537:WARN:oejs.HttpConnection:/
> java.lang.NullPointerException
> at
> org.eclipse.jetty.websocket.WebSocketFactory.upgrade(WebSocketFactory.java:201)
> at
> org.eclipse.jetty.websocket.WebSocketFactory.acceptWebSocket(WebSocketFactory.java:326)
> at
> org.eclipse.jetty.websocket.WebSocketHandler.handle(WebSocketHandler.java:38)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> at org.eclipse.jetty.server.Server.handle(Server.java:346)
> at
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:442)
> at
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:582)
> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
> at
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:51)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:586)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:44)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> at java.lang.Thread.run(Thread.java:662)
>
>
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------
>
> I made a WebSocketServletContextListener implementing
> ServletContextListener.
>
> And in this class, I started a jetty server which had a WebSocketHandler
> set DefaultHandler.
>
> I register this class as a listener in web.xml.
>
> Client ia a chrome 16.0.912.63 m.
>
>
> On client,
>
> var location = "ws://localhost:8081";
> this._ws = new WebSocket(location);
>
>
>
> Is this problem why client and server's websocket version is different ?
>
> I don't know what jetty's websocket version is.
>
> As I know chrome v.16 supports Hybi17..
>
> I don't know what I would do....-.-;;
>
>
> I wish you have an answer or hint..
>
>
> Thank you all for reading..
>
> and thank you so much for your answer in advance..
>
>
> Happy Christmas ~ ^_____^
>
>
>
>
> --
>
>
> ----------------------------------------------------------------------------------
> *Seonhong Ahn *
> Director of Research and Development
>
> *Collabra Co.*
> 960-6 Deachi-dong, Gangnam-gu, Seoul, Korea 135-280
> Tel. 82-70-8670-6929 Fax. 82-2-6280-4807
> *Mobile 82-10-8292-3923*
> E-mail [email protected] / [email protected]
> www.collabra.co.kr
>
> ----------------------------------------------------------------------------------
>
>
>
--
----------------------------------------------------------------------------------
*Seonhong Ahn*
Director of Research and Development
*Collabra Co.*
960-6 Deachi-dong, Gangnam-gu, Seoul, Korea 135-280
Tel. 82-70-8670-6929 Fax. 82-2-6280-4807
*Mobile 82-10-8292-3923*
E-mail [email protected] / [email protected]
www.collabra.co.kr
----------------------------------------------------------------------------------
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