[JENKINS-52509] WARNING: Attempt to (de-)serialize anonymous class hudson.plugins.selenium.PluginImpl$1 - Jenkins Jira

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Type: Bug
Status: Open (View Workflow)
Priority: Minor
Resolution: Unresolved
Component/s: selenium-plugin
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Environment:

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Jenkins Version 2.107.3
Selenium Plugin 3.12.0
FitNesse Plugin 1.16

java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

os.arch x86_64
os.name Mac OS X
os.version 10.13.5

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Jenkins Version 2.107.3 Selenium Plugin 3.12.0 FitNesse Plugin 1.16 java version "1.8.0_171" Java(TM) SE Runtime Environment (build 1.8.0_171-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode) os.arch x86_64 os.name Mac OS X os.version 10.13.5

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Description

Using the selenium plugin on jenkins to kick off a selenium hub on my machine, I created a selenium node on a remote machine and registered with the hub. This was successful and the Selenium console and web console confirm this. If I then try to run A Fitnesse test using the grid I get a "Connection Refused" exception:

---------- exception -----

java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:359)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
at org.openqa.selenium.remote.internal.ApacheHttpClient.fallBackExecute(ApacheHttpClient.java:138)
at org.openqa.selenium.remote.internal.ApacheHttpClient.execute(ApacheHttpClient.java:86)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:101)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:600)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:219)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:142)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:155)
at com.britebill.qa.selenium.webdriver.Browser.openBrowser(Browser.java:158)

---------- exception -----

If I take Jenkins out of the equation and run selenium hub on my local machine from the command line with the remote selenium node registering as before and run the same Fitnesse test it succeeds

When running via jenkins, I noticed the following message in the console when I clicked on "Selenium Grid" from the Jenkins dashboard

WARNING: Attempt to (de-)serialize anonymous class hudson.plugins.selenium.PluginImpl$1 in file:/Users/johnog/.jenkins/plugins/selenium/WEB-INF/lib/selenium.jar; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/

I am unsure if this warning is significant but would be interested if this was a known issue

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Activity

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John OGrady created issue - 2018-07-12 09:45

John OGrady made changes - 2018-07-12 09:59

Field	Original Value	New Value
Priority	Major [ 3 ]	Minor [ 4 ]

Josh Soref added a comment - 2018-08-21 21:02

Fwiw, the warning and the error aren't related. I've tried to fix some instances of the warning. You're welcome to have bugs for both (personally, if I were you, I'd be more interested in the error than the warning...).

From an IT/Ops perspective, I'd hope there's more logging to report: the url/host/port/ip that was failing... (and if not, I'd want it added...)

Josh Soref added a comment - 2018-08-21 21:02 Fwiw, the warning and the error aren't related. I've tried to fix some instances of the warning. You're welcome to have bugs for both (personally, if I were you, I'd be more interested in the error than the warning...). From an IT/Ops perspective, I'd hope there's more logging to report: the url/host/port/ip that was failing... (and if not, I'd want it added...)

Rouke Broersma added a comment - 2018-08-21 21:16

The first thing I would recommend is if the selenium hub is reachable on the configured url and port, as on first glance it seems to me like the port you are using is simply not accessible from the location at which you run the tests.

Rouke Broersma added a comment - 2018-08-21 21:16 The first thing I would recommend is if the selenium hub is reachable on the configured url and port, as on first glance it seems to me like the port you are using is simply not accessible from the location at which you run the tests.

Oleg Nenashev added a comment - 2018-08-29 09:37

https://github.com/jenkinsci/selenium-plugin/blob/master/src/main/java/hudson/plugins/selenium/PluginImpl.java#L328 . It sounds like an issue to be fixed IMHO. It's a really bad idea to serialize Plugin class instances over the channel

Oleg Nenashev added a comment - 2018-08-29 09:37 https://github.com/jenkinsci/selenium-plugin/blob/master/src/main/java/hudson/plugins/selenium/PluginImpl.java#L328 . It sounds like an issue to be fixed IMHO. It's a really bad idea to serialize Plugin class instances over the channel

People

Assignee:: Rouke Broersma

Reporter:: John OGrady

Votes:: 1 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: 2018-07-12 09:45

Updated:: 2018-08-29 09:37