'jshell' is not recognized as an internal or external command

Question

I am using the 'jshell command in my machine it is not recognised. But java command is working fine. is there any environment setup for jshell in jdk 10

C:\Users\Kannan
λ jshell
'jshell' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Kannan
λ java -version
java version "10" 2018-03-20
Java(TM) SE Runtime Environment 18.3 (build 10+46)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode)

score 8 · Answer 1 · answered Mar 26 '18 at 17:24

8

jshell is a part of JDK 10 and it's located in the %JAVA_HOME%\bin folder on Windows.

Possible problems:

You installed JRE 10 only (instead of JDK 10). jshell is NOT part of the JRE.
%JAVA_HOME%\bin is not part of the PATH system variable.

See also: Environment variables for java installation

answered Mar 26 '18 at 17:24

Alex Shesterov

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JShell is part of JDK 9 and above – Chinmoy Feb 04 '19 at 11:01
@Chinmoy, true; I've referred to the specific tag `java-10` in the question though. Thanks for the note. – Alex Shesterov Jan 30 '20 at 08:54

score 5 · Accepted Answer · edited Mar 26 '18 at 17:21

5

check if jshell is installed with your Java environment. ls [JAVA-INSTALLEDPATH]/bin
if jshell does not exist download appropriate JDK
if jshell is present append path in your environment profile or use full path.

edited Mar 26 '18 at 17:21

Mark Rotteveel

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answered Mar 26 '18 at 17:20

Dwight J. Browne

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On Windows, `ls` only works in Power Shell, not in the command prompt. – Mark Rotteveel Mar 26 '18 at 17:28
Thanks @Dwight J. Browne I have check JAVA_HOME environment and It was pointing to jdk8 path. I don't know why java version still showing java 10 . Any way issue is fixed – Kannan Thangadurai Mar 26 '18 at 17:30

Mark Rotteveel · Answer 3 · 2018-03-26T17:29:13.547

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You need to add the bin folder of your Java Development Kit (JDK) installation to the PATH environment variable. The java command works, because the JRE installs a copy of the java.exe executable in C:\ProgramData\Oracle\Java\javapath\ and adds it to the PATH.

For editing the PATH, see How do I set system environment variables in Windows 10? on superuser

edited Mar 26 '18 at 17:29

answered Mar 26 '18 at 17:23

Mark Rotteveel

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Thanks @Mark Rotteveel – Kannan Thangadurai Mar 26 '18 at 17:32

score 1 · Answer 4 · edited May 07 '18 at 20:28

1

Had the same problem. I set JAVA_HOME and wrapped it with double quotes ("").

JAVA_HOME="C:\Program Files\Java\jdk1.8.0_144"

edited May 07 '18 at 20:28

IKavanagh

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answered May 07 '18 at 20:07

Tonnie

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score 1 · Answer 5 · edited May 15 '18 at 10:32

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What you have is a JRE. You should install JDK and set JAVA_HOME. Then jshell will start working properly.

edited May 15 '18 at 10:32

Stephen Kennedy

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answered May 15 '18 at 10:31

user3567195

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trupthi · Answer 6 · 2018-07-02T07:17:01.213

The same problem has happened to me. Uninstall and Install the right JDK from Oracle website.

steps: 1. Control Panel > System & Security > System > Change Setting > Advance > Change Environment Variable > System Variable > New > Variable Name:"Path" & Variable Value: "C:\Program Files\Java\jdk-10.0.1\bin" (address of the bin)> ok

You are good to go. Here's the link to the video that helped me.

https://www.youtube.com/watch?v=UokTaTwckDw

score 1 · Answer 7 · answered Oct 24 '18 at 15:02

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Run you command prompt as Administrator. window -> cmd -> Run as Administrator then type jshell.

answered Oct 24 '18 at 15:02

subhashis

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score 1 · Answer 8 · answered Feb 04 '19 at 11:04

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Remove any default path variable that is set in envirnoment variables when you install JDK apart from JAVA_HOME.Then update your JAVA_HOME to /path of JDK 9 OR Above/

answered Feb 04 '19 at 11:04

Chinmoy

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'jshell' is not recognized as an internal or external command

8 Answers8