Selenium grid, Exception in thread "main" java.lang.NoSuchMethodError

Question

I wanted to start Hub and node using selenium-server standalone jar. Command used are right. I m able to start hub and rc nodes on 3 machines. Whereas in 4th machine, i used the same jar with the same commands.Its throwing, I'm getting following error

org.openqa.grid.selenium.GridLauncher main
INFO: Launching a selenium grid node
Exception in thread "main" java.lang.NoSuchMethodError: java.lang.String.isEmpty()Z
at org.openqa.grid.common.RegistrationRequest.getRemoteControlConfiguration(RegistrationRequest.java:552)
at org.openqa.grid.internal.utils.SelfRegisteringRemote.startRemoteServer(SelfRegisteringRemote.java:85)
at org.openqa.grid.selenium.GridLauncher.main(GridLauncher.java:72)

Thanks in advance..

what Java Runtime are you using, isEmpty() was introduce in jdk 6 — vcetinick
– vcetinick, Commented Jan 5, 2012 at 3:21
jar file from seleniumhq.org .. downloaded selenium-server-stadalone-2.14.0.jar — farheen
– farheen, Commented Jan 5, 2012 at 3:26

vcetinick · Accepted Answer · 2012-01-05 03:25:41Z

4

The isEmpty() method was introduced in java 6. If you are using a version of java that is older, then perhaps thats where the error is coming from.

answered Jan 5, 2012 at 3:25

vcetinick

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