Selenium Grid 4.0.0-alpha5 doesn't find commands (in embedded mode)

[asolntsev]

🐛 Bug Report

When I run grid commands as described in wiki, I see only help message.

To Reproduce

❯❯❯ java -jar selenium-server-4.0.0-alpha-5.jar

Selenium Server commands

A list of all the commands available. To use one, run `java -jar selenium.jar
commandName`.

  distributor  Adds this server as the distributor in a selenium grid.
  hub          A grid hub, composed of sessions, distributor, and router.
  info         Prints information for commands and topics.
  node         Adds this server as a node in the selenium grid.
  router       Creates a router to front the selenium grid.
  sessions     Adds this server as the session map in a selenium grid.
  standalone   The selenium server, running everything in-process.

...

Expected behaviour

A selenium grid server should be start with given command.

Environment

OS: Any (I use MacOS)
Browser: -
Browser version: -
Browser Driver version: -
Language Bindings version: 4.0.0-alpha-5
Selenium Grid version (if applicable): 4.0.0-alpha-5

The bug cause

File META-INF/services/org.openqa.selenium.cli.CliCommand in selenium-grid-4.0.0-alpha-5.jar contains only one line:

org.openqa.selenium.grid.sessionmap.httpd.SessionMapServer

but should contain all grid commands:

org.openqa.selenium.grid.distributor.httpd.DistributorServer
org.openqa.selenium.grid.commands.InfoCommand
org.openqa.selenium.grid.commands.MessageBusCommand
org.openqa.selenium.grid.node.httpd.NodeServer
org.openqa.selenium.grid.router.httpd.RouterServer
org.openqa.selenium.grid.sessionmap.httpd.SessionMapServer
org.openqa.selenium.grid.commands.Standalone

[diemol]

@asolntsev what was the command that you tried? It is not clear from the issue description.

[asolntsev]

@asolntsev what was the command that you tried? It is not clear from the issue description.

My command line was exactly like this:

java -jar selenium-server-4.0.0-alpha-5.jar

[diemol]

Ah ok, got it. Grid 4 is only giving the information about the available commands when no parameter is given:

java -jar selenium-server-4.0.0-alpha-5.jar                                                                                                                                                     ✔  19:20:52
Selenium Server commands

A list of all the commands available. To use one, run `java -jar selenium.jar
commandName`.

  distributor  Adds this server as the distributor in a selenium grid.
  hub          A grid hub, composed of sessions, distributor, and router.
  info         Prints information for commands and topics.
  node         Adds this server as a node in the selenium grid.
  router       Creates a router to front the selenium grid.
  sessions     Adds this server as the session map in a selenium grid.
  standalone   The selenium server, running everything in-process.

For each command, run with `--help` for command-specific help

Use the `--ext` flag before the command name to specify an additional classpath
to use with the server (for example, to provide additional commands, or to
provide additional driver implementations). For example:

  java -jar selenium.jar --ext example.jar:dir standalone --port 1234

As the output says,

To use one, run java -jar selenium.jar commandName

For example:

java -jar selenium-server-4.0.0-alpha-5.jar standalone                                                                                                                                SIGINT(2) ↵  19:22:48
19:22:52.732 INFO [EventBusOptions.createBus] - Creating event bus: org.openqa.selenium.events.local.GuavaEventBus
19:22:52.906 INFO [NodeOptions.lambda$addSystemDrivers$1] - Adding Capabilities {browserName: chrome} 13 times
19:22:52.908 INFO [NodeOptions.lambda$addSystemDrivers$1] - Adding Capabilities {browserName: firefox} 13 times
19:22:52.908 INFO [NodeOptions.lambda$addSystemDrivers$1] - Adding Capabilities {browserName: operablink} 13 times
19:22:52.908 INFO [NodeOptions.lambda$addSystemDrivers$1] - Adding Capabilities {browserName: safari} 1 times
19:22:52.954 INFO [LocalDistributor.add] - Added node d3c7789b-7aa6-4543-95e0-2f823de2bc83.
19:22:52.955 INFO [Host.lambda$new$0] - Changing status of node d3c7789b-7aa6-4543-95e0-2f823de2bc83 from DOWN to UP. Reason: http://192.168.1.7:4444 is ok
19:22:53.083 INFO [Standalone.lambda$configure$1] - Started Selenium standalone 4.0.0-alpha-5 (revision b3a0d621cc)

Could you please give it a try?

[asolntsev]

@diemol My bad. Now I understand that it was the expected output. Sorry for miscommunication. :(

What I actually was trying to do is running embedded grid server.
Right in my test:

import org.openqa.selenium.grid.Main;

  @BeforeEach
  final void setUpGrid() throws Exception {
    int hubPort = findFreePort();
    Main.main(new String[]{"standalone", "--port", String.valueOf(hubPort)});
  }

In this case, "standalone" and any other commands are not found.
It's because file META-INF/services/org.openqa.selenium.cli.CliCommand in selenium-grid-4.0.0-alpha-5.jar contains only one line. But now I realized that the same file in selenium-server-4.0.0-alpha-5.jar contains all properties.

Maybe it's not directly a bug, but at least it may cause a confusion. Probably file selenium-grid-4.0.0-alpha-5.jar should not contain META-INF/services/org.openqa.selenium.cli.CliCommand at all.

[asolntsev]

P.S. I don't see selenium-server-4.0.0-alpha-5.jar in maven central repository. How could I get access to the proper META-INF/services/org.openqa.selenium.cli.CliCommand then (if I want to use fully automated builds without need to manually download any jars)?

[AutomatedTester]

@diemol Should we get something fixed here or close the issue?

[asolntsev]

@AutomatedTester @diemol Yes, I suggest the following action point:

• Add all possible commands to selenium-grid-4.0.0-alpha-5.jar:META-INF/services/org.openqa.selenium.cli.CliCommand

Alternatively,

• Remove file selenium-grid-4.0.0-alpha-5.jar:META-INF/services/org.openqa.selenium.cli.CliCommand
• Publish file selenium-server-4.0.0-alpha-5.jar to maven central repo

[barancev]

@AutomatedTester Yes, we should fix META-INF/services/org.openqa.selenium.cli.CliCommand

[shs96c]

First question: are you pulling this into a project by a maven dependency, or just grabbing the jar?
Presumably, you're using org.seleniumhq.selenium:selenium-grid:4.0.0-alpha-5 and pulling in a maven dep to a project. Is that right?

[asolntsev]

@shs96c yes, I use selenium-grid-4.0.0-alpha-5.jar as Gradle dependency.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.