Vscode-java-debug: Java runtime could not be located

[bsaby]

OS: win10
VScode: 1.17.2()x64/x86
Jdk: 1.8.0_151(x64/x86)
Plugin: daily build 59

Repro steps:

1. Install Language Support for Java by Ret hat and Java debug plugin
2. Reload
3. Open a project folder and open a .java file in this project

@yaohaizh

[yaohaizh]

@bsaby Is the JAVA_HOME set in your system environment?

[bsaby]

Yes. And after this error occured, restart vscode, Java runtime will work fine.

[yaohaizh]

It seems the value is not properly resolved by VSCode java extension at the first time. You need restart the VSCode after your set the system variable.

[akaroml]

@bsaby please verify if you can still reproduce the issue by setting JAVA_HOME properly.

[bsaby]

Still reproduce this issue by setting JAVA_HOME properly using daily build 60.
And this issue only reproduce when reload not restart vscode after installing two java plugin

[akaroml]

@yaohaizh please further investigate this issue.

[yaohaizh]

VSCode will not populate its system environment when reload. See the VSCode issue here: https://github.com/Microsoft/vscode/issues/6333

[WritingSolutions2020]

For what it's worth, as of 05 March, 2018 the problem illustrated in the original poster's screenshot still exists.

For Linux Mint 32-bit. Visual Studio code 1.20.1.

1. Installed /java/jdk1.8.0_161 in /usr directory. In /bin used java -version to verify that the Java executable could be run without error.

2. Added path to JDK in both user and workspace settings:

User Settings:

{
   "java.home": "/usr/java/jdk1.8.0_161",
}

Workspace Settings:

{
  "java.home": "/usr/java/jdk1.8.0_161",
  "python.pydev.java.home": "/usr/java/jdk1.8.0_161",
  "python.linting.pylintPath": "/usr/local/bin/pylint",
  "python.pythonPath": "/usr/bin/python3.5",
}

1. Although I'm creating Python 3.5 code and not Java code, installed the following extensions in response to guidance offered on this and other forums:

   

See also https://stackoverflow.com/questions/46751168/visual-studio-code-cant-find-jdk8

1. Although I have resolved other issues (such as the inabiity of Visual Studio Code to find the system's instance of _pylint_, the JDK problem persists. And as others with this problem have noted, the solutions offered aren't working.

[andxu]

@WritingSolutions2020 please give more description of "And as others with this problem have noted, the solutions offered aren't working.", can you give us the a description about your problem:

1. are you editing/debugging java code not python code?
2. does the error pops show "Java runtime cannot be located"
3. what the env variables of JAVA_HOME and PATH
4. what's the result of bash/command prompt result of "which java" and "where java", eg:
   

   
   
   C:\Users\andxu>where java
   
   C:\Program Files\Java\jdk1.8.0_152\bin\java.exe
   
   

[WritingSolutions2020]

Actually I think this may be a PyDev extension problem. The popup shown in the original post doesn't occur until I open a PY file. (I'm working entirely with Python, not Java).

ANYHOW I've uninstalled Visual Studio Code and moved on. We can re-close this if you'd like...

[andxu]

Thanks for the feed back, close this issue.

[WritingSolutions2020]

A bit more information. The problem I'm having is that it appears the NONE of the extensions that require a JRE / SDK work. This despite the fact that I've (1) configured and tested JAVA_HOME and PATH, and (2) carerfully configured VCS's JSON configurations.

With regard to JRE / SDK, I have other programs -- Eclipse, jEdit, and others -- that require a JRE. They are all working properly after I installed and pointed them to _jdk1.8.0_161_. I've also used java -version in various places to ensure that that SDK is now this computer's default.

Also, VCS does not report the error until I (a) have PyDev installed, and (b) open a Python 3 source file. So the central problem appears to me to be that PyDev can't use the information I've carefully provided to enable it to find the SDK it needs. AND after removing the PyDev extension the "JRE not found" error no longer occurs.

[bedge]

Seeing the same as @WritingSolutions2020 with:
VS Code version: Version 1.29.0-insider (1.29.0-insider)
OS and version: OSX High Sierra 10.13.6 (17G65)

Also, I'm using jenv which adds another layer of obfuscation, but all shells show:

❯ jenv version
10.0 (set by /Users/bedge/.jenv/version)

❯ java -version
java version "10.0.1" 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)

❯ which java
/Users/bedge/.jenv/shims/java

[joygre1]

Hello,
I just installed the Visual studio Code and for the life of me, I keep getting the Java run time could not be located and even after using the paths provided, the error remains. Can anyone kindly help this code newbie.

[testforstephen]

@joygre1 The checking approach is provided by Language Support for Java(TM) by Red Hat extension, what version did you install Java language support extension?

[joygre1]

I found an alternative and deleted the Force.com. No worries and thanks so much for responding!

Thanks and regards,

J. Greer

On Jun 9, 2019, at 11:17 PM, Jinbo Wang [e-mail] wrote:

@joygre1 The checking approach is provided by Language Support for Java(TM) by Red Hat extension, what version did you install Java language support extension?

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You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub, or mute the thread.

[RobbiNespu]

sorry for bump the issue. seem this issue is appear on google 1st page, i share my quick solution. read my explanation below

As quick solution, just edit your vscode setting.json and pointing directly to java_home (eg: add "java.home": "C:\\java\\jdk\\java-11-openjdk-11.0.8-2", ). Please refer attached picture, saved it and vscode will ask to restart. After restart, should be no more same issue. I hope this will help.