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500 Error, when using /session/:sessionId to retrieve the capabilities of the specified session. #4476

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lukeis opened this issue Mar 4, 2016 · 11 comments
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500 Error, when using /session/:sessionId to retrieve the capabilities of the specified session. #4476

lukeis opened this issue Mar 4, 2016 · 11 comments
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Component-WebDriver Priority-Medium Restrict-AddIssueComment-Commit Status-WorkingAsIntended Type-Defect

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lukeis commented Mar 4, 2016

Originally reported on Google Code with ID 4476

method: Delete and path: /session/:sessionId  works.
method: Post and path: /session workds.

only fail with method: Get, path: /session/:sessionId 

The java log is below:


16:48:55.167 INFO - Executing: [new session: {platform=ANY, javascriptEnabled=true,
browserName=firefox, version=}] at URL: /session)
16:49:10.894 INFO - Done: /session
16:49:10.919 INFO - Executing: org.openqa.selenium.remote.server.handler.GetSessionCapabilities@2c083020
at URL: /session/1346143715521)
16:49:10.919 INFO - Done: /session/1346143715521
16:49:10.927 WARN - Fatal, unhandled exception: /session/1346143715521: java.util.concurrent.ExecutionException:
java.lang.NullPointerException
16:49:10.928 INFO - WebDriver remote server: Fatal, unhandled exception: /session/1346143715521:
org.openqa.selenium.WebDriverException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
Build info: version: '2.25.0', revision: '17482', time: '2012-07-18 21:08:56'
System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.8.1', java.version:
'1.6.0_33'
Driver info: driver.version: unknown
16:49:10.931 WARN - EXCEPTION 
javax.servlet.ServletException: org.openqa.selenium.WebDriverException: java.util.concurrent.ExecutionException:
java.lang.NullPointerException
Build info: version: '2.25.0', revision: '17482', time: '2012-07-18 21:08:56'
System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.8.1', java.version:
'1.6.0_33'
Driver info: driver.version: unknown
    at org.openqa.selenium.remote.server.DriverServlet.handleRequest(DriverServlet.java:206)
    at org.openqa.selenium.remote.server.DriverServlet.doGet(DriverServlet.java:158)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at org.openqa.selenium.remote.server.DriverServlet.service(DriverServlet.java:139)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.openqa.jetty.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
    at org.openqa.jetty.jetty.servlet.ServletHandler.dispatch(ServletHandler.java:677)
    at org.openqa.jetty.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1526)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1479)
    at org.openqa.jetty.http.HttpServer.service(HttpServer.java:914)
    at org.openqa.jetty.http.HttpConnection.service(HttpConnection.java:820)
    at org.openqa.jetty.http.HttpConnection.handleNext(HttpConnection.java:986)
    at org.openqa.jetty.http.HttpConnection.handle(HttpConnection.java:837)
    at org.openqa.jetty.http.SocketListener.handleConnection(SocketListener.java:243)
    at org.openqa.jetty.util.ThreadedServer.handle(ThreadedServer.java:357)
    at org.openqa.jetty.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
Caused by: org.openqa.selenium.WebDriverException: java.util.concurrent.ExecutionException:
java.lang.NullPointerException
Build info: version: '2.25.0', revision: '17482', time: '2012-07-18 21:08:56'
System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.8.1', java.version:
'1.6.0_33'
Driver info: driver.version: unknown
    at org.openqa.selenium.remote.server.JsonHttpRemoteConfig.handleRequest(JsonHttpRemoteConfig.java:197)
    at org.openqa.selenium.remote.server.DriverServlet.handleRequest(DriverServlet.java:201)
    ... 16 more
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
    at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
    at java.util.concurrent.FutureTask.get(FutureTask.java:83)
    at org.openqa.selenium.remote.server.DefaultSession.execute(DefaultSession.java:157)
    at org.openqa.selenium.remote.server.handler.WebDriverHandler.execute(WebDriverHandler.java:89)
    at org.openqa.selenium.remote.server.rest.ResultConfig.handle(ResultConfig.java:238)
    at org.openqa.selenium.remote.server.JsonHttpRemoteConfig.handleRequest(JsonHttpRemoteConfig.java:190)
    ... 17 more
Caused by: java.lang.NullPointerException
    at org.openqa.selenium.remote.server.JeeServletHttpRequest.forward(JeeServletHttpRequest.java:73)
    at org.openqa.selenium.remote.server.renderer.ForwardResult.render(ForwardResult.java:35)
    at org.openqa.selenium.remote.server.rest.ResultConfig$1.call(ResultConfig.java:231)
    at org.openqa.selenium.remote.server.rest.ResultConfig$1.call(ResultConfig.java:1)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at org.openqa.selenium.remote.server.DefaultSession$1.run(DefaultSession.java:150)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)
16:49:10.935 ERROR - /wd/hub/session/1346143715521: 
org.openqa.selenium.WebDriverException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
Build info: version: '2.25.0', revision: '17482', time: '2012-07-18 21:08:56'
System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.8.1', java.version:
'1.6.0_33'
Driver info: driver.version: unknown
    at org.openqa.selenium.remote.server.JsonHttpRemoteConfig.handleRequest(JsonHttpRemoteConfig.java:197)
    at org.openqa.selenium.remote.server.DriverServlet.handleRequest(DriverServlet.java:201)
    at org.openqa.selenium.remote.server.DriverServlet.doGet(DriverServlet.java:158)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at org.openqa.selenium.remote.server.DriverServlet.service(DriverServlet.java:139)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.openqa.jetty.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
    at org.openqa.jetty.jetty.servlet.ServletHandler.dispatch(ServletHandler.java:677)
    at org.openqa.jetty.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1526)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1479)
    at org.openqa.jetty.http.HttpServer.service(HttpServer.java:914)
    at org.openqa.jetty.http.HttpConnection.service(HttpConnection.java:820)
    at org.openqa.jetty.http.HttpConnection.handleNext(HttpConnection.java:986)
    at org.openqa.jetty.http.HttpConnection.handle(HttpConnection.java:837)
    at org.openqa.jetty.http.SocketListener.handleConnection(SocketListener.java:243)
    at org.openqa.jetty.util.ThreadedServer.handle(ThreadedServer.java:357)
    at org.openqa.jetty.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
    at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
    at java.util.concurrent.FutureTask.get(FutureTask.java:83)
    at org.openqa.selenium.remote.server.DefaultSession.execute(DefaultSession.java:157)
    at org.openqa.selenium.remote.server.handler.WebDriverHandler.execute(WebDriverHandler.java:89)
    at org.openqa.selenium.remote.server.rest.ResultConfig.handle(ResultConfig.java:238)
    at org.openqa.selenium.remote.server.JsonHttpRemoteConfig.handleRequest(JsonHttpRemoteConfig.java:190)
    ... 17 more
Caused by: java.lang.NullPointerException
    at org.openqa.selenium.remote.server.JeeServletHttpRequest.forward(JeeServletHttpRequest.java:73)
    at org.openqa.selenium.remote.server.renderer.ForwardResult.render(ForwardResult.java:35)
    at org.openqa.selenium.remote.server.rest.ResultConfig$1.call(ResultConfig.java:231)
    at org.openqa.selenium.remote.server.rest.ResultConfig$1.call(ResultConfig.java:1)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at org.openqa.selenium.remote.server.DefaultSession$1.run(DefaultSession.java:150)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)

Reported by ni184775761 on 2012-08-28 08:53:18
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lukeis commented Mar 4, 2016

Reported by barancev on 2012-09-11 09:15:59

  • Labels added: Component-WebDriver

@lukeis lukeis self-assigned this Mar 4, 2016
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lukeis commented Mar 4, 2016 

Please show your code, which command do you execute that causes this failure?

Reported by barancev on 2012-10-12 07:03:38

  • Status changed: NeedsClarification

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lukeis commented Mar 4, 2016 

Closing the issue as there is no responce from the author for long time.

Reported by barancev on 2012-11-04 21:46:43

  • Labels removed: Status-Untriaged

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lukeis commented Mar 4, 2016

Reported by barancev on 2012-11-04 21:47:01

  • Status changed: Invalid

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lukeis commented Mar 4, 2016 

I am receiving this error using the same version and revision number for selenium-server-standalone-2.25.0.jar
in both Windows 7 and Mac OS X.  To repeat this error, I start the jar on the command-line,
then access it from RESTClient in a Firefox browser.  I added the "Content-type:application-json;charset=UTF-8"
header as directed in the JSON Wire Protocol documentation, and then send a POST request
to http://localhost:4444/wd/hub/session with body: <pre>{"desiredCapabilities":{"browserName":"firefox"}}</pre>
.  A Firefox browser opens on the client machine, and the sessionID gets set, but the
response to the RESTClient utility is error code 500.

Reported by rrahkola on 2012-12-06 18:51:53

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lukeis commented Mar 4, 2016 

Forget the "<pre>" tags on the above comment.  The body was entirely a JSON-formatted
string.

Reported by rrahkola on 2012-12-06 18:53:04

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lukeis commented Mar 4, 2016 

Okay, since I'm a newbie at this, this was fixed by adding the other required header:
Accept:application-json;charset=UTF-8 .  I confirmed this worked with all browsers
I tried: chrome and internet explorer.

In summary, here is an acceptable RESTClient request:
Method: POST
URL: http://localhost:4444/wd/hub/session
Headers:
Content-Type:application/json;charset=UTF-8
Accept:application/json;charset=UTF-8
Body:
{desiredCapabilities:{browserName:"firefox"}}

"firefox" can be replaced with "chrome" and "internet explorer".

P.S.  I also paste below my command-line for the selenium webdriver server:
java -jar selenium-server-2.25.0.jar -Dwebdriver.chrome.driver=.\chromedriver.exe -Dwebdriver.ie.driver=.\IEDriverServer.exe

P.P.S.  When I tried Internet Explorer, I first received an error mentioning that Protected
Mode (an IE option) needs to be the same for all domains, either enabled or disabled.
 I made sure the Protected Mode checkbox was checked for all domains and the next REST
command was successful.

Reported by rrahkola on 2012-12-06 19:57:35

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lukeis commented Mar 4, 2016 

OK, changing the verdict to WorkingAsIntended.

And I'm interested why do you need to send requests directly? Are you goig to to implement
a new client for some language?

Reported by barancev on 2012-12-06 20:10:21

  • Status changed: WorkingAsIntended

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lukeis commented Mar 4, 2016 

Thanks @rrahk...@gmail.com it works! And sorry for not reply this issue for so long...
BTW @barancev，I am just implementing a nodeJS binding

Reported by ni184775761 on 2012-12-07 03:10:47

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lukeis commented Mar 4, 2016 

I'm learning to use php-wrapper, which provides a very basic object-based implementation
of the WebDriver RESTful web service requests.  I was testing the selenium-server application
to debug my environment.  On a side note I am also developing a pageObject base class
in PHP for our regression tests.

Reported by rrahkola on 2012-12-09 02:52:15

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lukeis commented Mar 4, 2016

Reported by luke.semerau on 2015-09-17 18:16:02

  • Labels added: Restrict-AddIssueComment-Commit

@lukeis lukeis closed this as completed Mar 4, 2016
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