Cannot determine a valid java home ошибка как исправить

Во многих статьях в интернете, документации к инструментам для разработки на Java и в книгах зачастую упоминается JAVA_HOME. Что же такое JAVA_HOME?

JAVA_HOME это переменная окружения, указывающая на директорию с установленным JDK (Java Development Kit, комплект разработчика Java). JAVA_HOME это соглашение, используемое во многих программах из экосистемы Java.

Какие программы используют JAVA_HOME

Intellij IDEA, Eclipse, NetBeans
Apache Maven, Apache Ant, Gradle
Apache Tomcat
Jenkins

Некоторые игры, написанные на Java (например, Minecraft), тоже могут требовать установленной переменной JAVA_HOME.

Ошибки, связанные с JAVA_HOME

Если переменная окружения JAVA_HOME не определена, некоторые программы могут выдавать следующие ошибки:

Переменная среды java_home не определена
Cannot determine a valid Java Home
JAVA_HOME is set to an invalid directory
JAVA_HOME is not defined correctly
JAVA_HOME environment variable is not set
JAVA_HOME command not found
JAVA_HOME not found in your environment
JAVA_HOME does not point to the JDK

При появлении таких ошибок просто установите переменную JAVA_HOME

Как установить переменную окружения JAVA_HOME в Windows

Сперва вам нужно установить JDK или JRE.

Установите JDK, если вы занимаетесь разработкой программ на Java
Установите JRE, если вам нужно только запустить прикладную программу на Java

После установки JDK либо JRE запишите путь установки, он понадобится.

Теперь щёлкните правой кнопкой на «Мой компьютер» → «Свойства» → «Дополнительные параметры системы» → «Переменные среды…». В разделе «Системные переменные» нажмите кнопку «Создать…» и укажите следующие данные:

Имя переменной	JAVA_HOME
Значение переменной	Путь к директории JDK / JRE, например: C:Javajdk-11.0.6

Сохраните изменения, кликнув «OK». Теперь выберите в списке переменную окружения Path и нажмите «Изменить…». В конце списка добавьте строчку со значением «%JAVA_HOME%bin«

Для проверки откройте консоль (Win+R, cmd) и укажите последовательно укажите две команды:

echo %JAVA_HOME%

java --version

Если вы правильно установили JDK/JRE и правильно установили переменные окружения, вы увидите вывод наподобие этого:

Это будет служить результатом того, что переменная JAVA_HOME установлена правильно и Java работает из командной строки.

Резюме

В данной статье мы рассказали вам, что являет собой переменная окружения JAVA_HOME, где она используется и как её корректно указать.

Источник

HowTo
Java Howtos
Cannot Determine a Valid Java Home

This tutorial demonstrates the cannot determine a valid java home error in Java.

`Cannot Determine a Valid Java Home`

The error cannot determine a valid java home occurs when the Java Home path is not correctly set. We must follow the steps to correctly set our Java Home to solve this issue.

Even after that, the same error occurs. Follow the steps below to solve this issue.

First, define a new variable JAVA_HOME and assign it the path of the Java installation directory.

JAVA_HOME =  C:Program FilesJavajdk-17.0.2

Now update the Path variable and add the bin directory.

Now add this to your Path variable; this can be done from environment variables.

JAVA HOME

Now you can check if it’s working or not; insert the following command in CMD or shell.

The output for this will be:

java version "17.0.2" 2022-01-18 LTS
Java(TM) SE Runtime Environment (build 17.0.2+8-LTS-86)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.2+8-LTS-86, mixed mode, sharing)

Sheeraz is a Doctorate fellow in Computer Science at Northwestern Polytechnical University, Xian, China. He has 7 years of Software Development experience in AI, Web, Database, and Desktop technologies. He writes tutorials in Java, PHP, Python, GoLang, R, etc., to help beginners learn the field of Computer Science.

LinkedIn
Facebook

What is a runtime environment?

Runtime basically means everything you require to run a program. Which includes environment variables, directory structure, common libraries etc. This can also be a virtual machine like

JRE (Java Runtime Environment)
CLR (Common Language Runtime) for .net framework

The target would be JRE or CLR for your program, need to decide by you. As soon as you execute any program, it’s in run time.

JRE vs JDK

JRE	JDK
Stands for Java Runtime Environment	Stands for Java development kit
To run Java programs, you need JRE	Helps to build Java programs and applets
Platform dependent contains libraries and supporting tool	Platform dependent contains tools development and debugging
JRE does not contain a development kit.	JDK includes JRE also to execute the program

Simple JRE VS JDK

What are the causes of the «Java Runtime environment not found» error

Java is not installed in your system
Java installation not completed (due to errors)
Environment variables of Java are not set
Java conflict due to more than one Java Runtime installation

Because JRE is platform-dependent, I have covered java installation, variable setup and un-installation for Windows and Ubuntu both.

Choose Windows 10 or Ubuntu 20.04 from the post and follow step by step to get java issues resolved.

Java download

Before installation, first, we need to download java —

Step1

Visit oracle.com and download JDK 15 or the latest available for your system. I am downloading it for Windows 10 (64-bit). The latest available versions of java are listed in the screenshot.

How to install Java runtime environment step by step

Let’s solve 1^st reason for «Java runtime environment not found», Because java is not installed.

Step2

First, check for any pre-installed java version —

Open the command prompt with «Run as administrator» and run java command.

C:Usersadmin> java --version

How to install java runtime environment in Windows 10

Step3

Once Download completes. Browse to the «jdk-15.0.1_windows-x64_bin.exe» file and double-click on it, to run the installer. Click Next.

Step4

I recommend keeping «C:Program filesjavajdk-15.0.1 (64-bit)» as the default installation folder. Select Next.

You may select different installation folders also. For example, if you are installing a second instance of java software. Click on change and browse for the target folder.

Step5

Let installation complete, it may take a few minutes.

Step6

Click close. Now you are done with java installation on windows 10.

How to set the environment variable for java in windows10

Set the Environment variable for java in windows 10 by these steps —

Step7

Type «environment» in the search window. Click «open» on «Edit the system environment variables«

Step8

Click on Environment variables.

Step9

Select «Path» > Then click Edit.

Step10

Select New > Give path of java installation directory > For example, «C:Program filesjavajdk-15.0.1bin» in my case. If you have selected a different folder for java installation in step4. You can enter your path to the bin folder.

Click OK.

Step11

Set «classpath» for java. Click «New» in the environment variable window. It allows to set up the new environment variables.

Step12

In «Variable name», enter «classpath«. Also in «variable value» provide path to your java installation till «lib» folder. In my case it is «C:program filesjavajdk-15.0lib > Select OK

Close all open environment variables windows by selecting OK.

How to check what version of java I have?

Installation and java variables have been set up. Now, Let’s validate the java installation and version.

Step13

Open the command prompt with «run as administrator» rights in windows 10.

Step14

Run the «java» command to check your Java and JRE (Java Runtime Environment) version.

java --version

Check java SDK version with javac command

Video tutorial-JRE error solved for Windows

«Java Runtime Environment not found» error fixed for windows 10

How to uninstall java from Windows 10

In case, you are not happy with your old java or JRE version and want to install a new. For that, you need to remove the old Java version.

Cleanup of Java from Windows 10 is pretty easy. Follow these steps to remove java from your system.

Step15

Search add or remove programs and click open

Step16

Select the java program and click Uninstall.

Java software will go from the window. You can clean up java variables also, set up in step10 and 11 earlier.

There are two ways to download and install java or JDK in Ubuntu 20.04

A.) Using the apt command

B.) Download the Oracle JDK package and install it manually

Let’s see both options one by one-

A.) How to install java or JRE in Ubuntu 20.04 using the apt command

To install Java in Ubuntu using the repository, Follow these commands

Step17

Update package index using apt command

$ sudo apt update

Step18

Check if you have any old java versions installed in the system. In my case, java is not installed.

$ sudo java -version

output

Command ‘java’ not found, but can be installed with:

sudo apt install openjdk-11-jre-headless # version 11.0.9.1+1-0ubuntu1~20.04, or
sudo apt install default-jre # version 2:1.11-72
———————-output-truncated————————————

Step19

Run the «apt» command to install java or JRE. I will install default-jre version 2:1.11-72 in my Ubuntu system from the list.

$ sudo apt install default-jre

Select «Y» and press Enter. Let installation complete. it will take a few minutes.

Step20

Check the java version

$ sudo java -version

output

How to Remove java from Ubuntu 20.04

Step21

Run apt command to remove JRE package installed. Press Y and then enter.

$ sudo apt autoremove "JRE package name"

B.) How to install the latest java or JDK in Ubuntu 20.04 from oracle (manually)

Step22

Java JRE download steps —

Visit oracle.com and download JDK 15 or the latest available .deb and transfer to your system. I am downloading Debian package jdk-15.0.1_linux-x64_bin.deb.

Alternatively, you can download java using wget command.

$ sudo wget "download link"

Reference output

Step23

Rename the .deb file using mv command, if required. Then install the Debian package using the dpkg command.

Learn more ways to install .deb package.

$ sudo dpkg -i ".deb-file-path"

output

Default installation directory path of java would be «/usr/lib/jvm/jdk-15.0.1/«. So, make a note of it, as it will be required to set up a Java_HOME variable.

How to set the «JAVA_HOME» variable in Ubuntu 20.04

Set the JAVA_HOME variable for all users in Ubuntu by editing the environment file.

Step24

Edit /system/environment file

$ sudo vi /etc/environment

Add path «/usr/lib/jvm/jdk-15.0.1/bin» to the last of the environment file. Then, save and exit.

Run source command to execute changes made in the environment file.

$ sudo source /etc/environment

Step25

Check your java version

$ sudo java -version

Remove java runtime environment package using dpkg command

Step26

Run the dpkg command with the —purge option to completely clean java from Ubuntu 20.04

$ sudo dpkg --purge "package-name"

For example,

$ sudo dpkg --purge jdk-15.0.1

Video Tutorial — JRE error solved for Ubuntu

Video on «How to fix java runtime environment error in Ubuntu 20.04»

Frequently Asked Questions (FAQs)

Where is the java runtime environment on Windows 10?

The default installation folder for java runtime is «C:Program filesjavajdk-15.0.1bin» in the case of windows 10.

What does Java Runtime Environment do?

Java Runtime Environment (JRE) helps to run java programs like the eclipse.

What is the java runtime environment used for?

Java runtime environment helps to run java programs like Tomcat, eclipse and Jenkins.

What is the java runtime environment?

Java runtime environment JRE is a software that runs on the operating system. Which provides class libraries and resources to run java programs.

How to set the java runtime environment in windows 10?

Type «environment» in the search window. Click «open» on «Edit the system environment variables«
Click on Environment variables.
Select «Path» > Then click Edit.
Select New > Give path of java installation directory > For example, «C:Program filesjavajdk-15.0.1bin«
Click OK

Ending notes

I hope after reading this article, you will be able to solve the «Java Runtime Environment not found error». Because majorly reasons for java related errors are, either Java is not installed or the java variable is not set.

if you still have issues, please comment and let me know, I will try to help you.

Источник

I think my path is not set correctly for some reason.

«Path» under System Variables looks following:

C:Program FilesCommon FilesOracleJavajavapath;C:ProgramDataOracleJavajavapath;C:Program FilesCommon FilesMicrosoft SharedWindows Live;C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:WindowsSystem32WindowsPowerShellv1.0;C:Program FilesWindows LiveShared;C:Program FilesQuickTimeQTSystem

Under User Variable Path or Java_home is not there?

Is there a way to start the path over again?

Если ваша система частенько выдает сообщения об ошибках запуска Java Virtual Machine «виртуальной машины Java», вам не нужно беспокоиться, эти ошибки очень легко устранить.

Функции JVM (Java Virtual Machine)

Виртуальная машина java отвечает за выделение памяти и сбор мусора, наряду с интерпретацией байт-кода в машинный код.

Среда выполнения Java (JRE) является обязательным для установки на вашем компьютере для некоторых приложений, чтобы работать должным образом. Основным компонентом JRE является виртуальная машина Java (JVM), которая помогает запускать Java-приложения. Java-файл, при компиляции, производит ‘.класс’ файл, а не исполняемый файл. Этот класс файл содержит байт-код java, который в jvm интерпретируется в машиночитаемые инструкции. Jvm — независит от платформы, поскольку он обеспечивает машинный интерфейс, который не зависит от базовой операционной системы и аппаратной архитектуры.

Могут быть случаи, когда вы можете получить сообщения об ошибках при запуске jvm, в таких ситуациях, как загрузка в компьютер, игра в игры, такие как minecraft, или открытие определенных Java-приложений. В этой статье я собрал несколько решений, которые могут помочь вам исправить ошибки запуска виртуальной машины Java для Windows.

Сообщение об ошибке #1: не удалось создать виртуальную машину java.

Это сообщение об ошибке обычно возникает при попытке запуска Java-игр, таких как minecraft.

➦Откройте панель управления.

➦Зайти в систему.

➦Перейти к расширенным свойствам системы.

➦Нажмите кнопку ‘переменные среды’.

➦В системных переменных, нажмите кнопку ‘новый’.

➦Поставьте новое имя переменной: _JAVA_OPTIONS

➦Вбейте новое значение переменной: -Xmx512M

➦Нажмите кнопку ‘ОК’.

-Xmx/S-это параметр конфигурации, который управляет количеством памяти которое использует java.

Xmx — это максимальный размер памяти, которая может быть выделена.
Xms — это минимальный размер памяти, которая может быть выделена.

Сообщение об ошибке #2: ошибка при открытии раздела реестра.

Эта ошибка может возникнуть при работе с Java в командной строке.

➦Открываем папку WINDOWSsystem32.

➦Удаляем исполняемый файл java файлов, в том числе java.exe, javaw.exe и javaws.exe.

➦Далее переустанавливаем среду JRE.

Сообщение об ошибке #3: Виртуальная машина java лаунчер не может найти основной класс: программа завершает работу

➦Нажмите кнопку «Пуск» в главном меню.

➦В окне поиска введите «mrt» и нажмите клавишу Enter. Будет запущена утилита Windows под названием ‘Средство удаления вредоносных программ Microsoft Windows ‘.

➦Нажмите кнопку «Далее» и выберите «полное сканирование».

➦Перезагрузите компьютер после завершения сканирования.

➦Нажмите кнопку «Пуск» и запустить программу настройки системы, набрав команду «msconfig» в поле поиска.

➦ Перейдите на вкладку «запуска» и снимите галочку рядом с ‘WJView.exe’ и ‘javaw.exe’.

➦Перезагрузитесь при запросе.

Сообщение об ошибке #4: не удалось открыть jarфайл.

Эта ошибка может возникнуть при попытке открыть приложение.

➦Нажмите кнопку ‘Пуск’ и перейдите к ‘программам по умолчанию’.

➦Выберите «сопоставление типа файла или протокола программе’.

➦Нажмите на расширения (.jar) для просмотра программы, которая открывает его по умолчанию.

➦Нажмите кнопку «изменить программу» и выбрите программу по умолчанию «виртуальная машина java лаунчер».

➦Нажмите кнопку «закрыть» и проверьте, устранена ли проблема.

➦Если нет, попробуйте удалить и переустановить Java.

➦Если проблема не устранена, обратитесь в техническую поддержку приложения, которое дает вам ошибку.

Если вы столкнулись с еще какими-либо ошибками Java Virtual Machine напишите о них в комментариях, постараюсь помочь.

I had to do an «emergency deploy» of JRE 8u144 32bit on our Windows 7 64bit installations. I used powershell with psexec to let every single PC install Java with the following switches: jre-8u144-windows-i586.exe INSTALL_SILENT=1 AUTO_UPDATE=0 REBOOT=0 SPONSORS=0 REMOVEOUTOFDATEJRES=1

Somehow quite some of the installations don’t work. JRE seems to be installed correctly, but when a JavaWs application is started I get the error «Cannot determine a valid Java Home». What does that mean and how can I fix it without reinstalling JRE everywhere (which probably would break working installations on other PCs, as JRE deletes a working 8u144 installation when rolled out again)?

Any help would really be appreciated as this issue is driving me nuts.

48596 Просмотров
Метки: нет (добавить)

1. Re: «Cannot determine a val >

Did you reboot those windows machines after you installed the JRE? Most possibly, the JAVA_HOME environment variable was set, but until the system is rebooted, the previous value would be still set in memory and applications trying to run java will not find the new JRE at its new location since they will be looking in the old location.

Мне нравится Показать отметки «Мне нравится» (0) (0)
Действия

2. Re: «Cannot determine a val >

I tried that already, but to no avail. Even on working systems I can’t find a JAVE_HOME user or system variable , where should it be? The only variable I can find is a PATH variable that’s named ‘C:ProgramDataOracleJavajavapath’ — but this one can even be found on non-working systems.

Источник

I installed java and set the path environment and when I run echo $JAVA_HOME in the terminal I get the following output:

/usr/lib/jvm/java-7-oracle/jre/bin/java

I Also installed apache-maven and changed environment file and now it looks like this:

JAVA_HOME="/usr/lib/jvm/java-7-oracle/jre/bin/java"
M2_HOME=/usr/local/apache-maven/apache-maven-3.0.5
M2=$M2_HOME/bin
MAVEN_OPTS="-Xms256m -Xmx512m"
PATH=$M2:$PATH

But when I execute mvn --version I get a warning:

Error: JAVA_HOME is not defined correctly.
  We cannot execute /usr/lib/jvm/java-7-oracle/jre/bin/java/bin/java

Can not find out why it repeats in the end /bin/java/bin/java

Philip Mutua

5,62811 gold badges37 silver badges77 bronze badges

asked Dec 5, 2014 at 15:40

user3127896user3127896

6,11314 gold badges39 silver badges62 bronze badges

Assuming you use bash shell and installed Java with the Oracle installer, you could add the following to your .bash_profile

export JAVA_HOME=$(/usr/libexec/java_home)
export PATH=$JAVA_HOME/jre/bin:$PATH

This would pick the correct JAVA_HOME as defined by the Oracle installer and will set it first in your $PATH making sure it is found.

Also, you don’t need to change it later when updating Java.

EDIT

As per the comments:

Making it persistent after a reboot

Just add those lines in the shell configuration file. (Assuming it’s bash)

Ex: .bashrc, .bash_profile or .profile (for ubuntu)

Using a custom Java installation

Set JAVA_HOME to the root folder of the custom Java installation path without the $().

Ex: JAVA_HOME=/opt/java/openjdk

answered Feb 24, 2015 at 1:48

JAVA_HOME should be /usr/lib/jvm/java-7-oracle/jre/.

answered Dec 5, 2014 at 15:42

talextalex

17.7k3 gold badges28 silver badges62 bronze badges

We open a terminal and look for the location of java:

manuel@zonademanel:~ → whereis java

java: /usr/bin/java /etc/java /usr/bin/X11/java /usr/share/java
/usr/share/man/man1/java.1.gz

What we are looking for is /usr/bin/java continue on the command line to find the absolute path , as this is only a symbolic link.

manuel@zonademanel:~ → ls -lah /usr/bin/java

lrwxrwxrwx 1 root root 22 may 19 2015 /usr/bin/java ->
/etc/alternatives/java

manuel@zonademanel:~ → ls -lah /etc/alternatives/java

lrwxrwxrwx 1 root root 39 dic 7 11:52 /etc/alternatives/java ->
/usr/lib/jvm/java-8-oracle/jre/bin/java

I modified my /etc/environment file with the following values

PATH=»/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/jvm/java-8-oracle/jre/bin»
JAVA_HOME=»/usr/lib/jvm/java-8-oracle/jre«

If I do not want to relogin I can reload the changes with:

source /etc/environment

And run mvn -version correctly

manuel@zonademanel:~ → mvn -version

Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.8.0_77, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: es_MX, platform encoding: UTF-8
OS name: «linux», version: «3.16.0-70-generic», arch: «amd64», family: «unix»

borjab

10.8k6 gold badges69 silver badges95 bronze badges

answered Apr 14, 2016 at 16:15

$JAVA_HOME should be the directory where java was installed, not one of its parts:

export JAVA_HOME=/usr/lib/jvm/java-7-oracle

answered Dec 5, 2014 at 15:42

MureinikMureinik

290k52 gold badges300 silver badges337 bronze badges

You might get this error due to couple of reasons. To fix this quickly please follow below steps,

First find the java location. To get a list of your installed Java platforms, run the following command from the terminal:

$ sudo update-alternatives --config java

Now set JAVA_HOME and PATH,

$ export JAVA_HOME=<java_home>

$ export PATH=$JAVA_HOME/jre/bin:$PATH

Create the symlink

$ sudo ln -s <java_home>/jre <java_symlink_path>

When we take your case as a example :

$ sudo ln -s /usr/lib/jvm/java-7-oracle/jre /usr/lib/jvm/java-7-oracle/jre/bin/java

Above command will create the symlink location where the system is trying to find in your issue.

Finally do the

$ mvn --version

answered May 27, 2016 at 9:28

tk_tk_

15.8k8 gold badges80 silver badges89 bronze badges

You should set as it is export JAVA_HOME=/usr/java/jdk1.8.0_31 and run with sudo it will execute as shown below.

Example

sudo mvn -v

OUTPUT

Apache Maven 3.6.0
Maven home: /usr/share/maven
Java version: 11.0.10, vendor: Ubuntu, runtime: /usr/lib/jvm/java-11-openjdk-amd64
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "5.4.0-70-generic", arch: "amd64", family: "unix"

Philip Mutua

5,62811 gold badges37 silver badges77 bronze badges

answered Mar 17, 2015 at 13:07

Firstly, in a development mode, you should use JDK instead of the JRE.
Secondly, the JAVA_HOME is where you install Java and where all the others frameworks will search for what they need (JRE,javac,…)

So if you set

JAVA_HOME=/usr/lib/jvm/java-7-oracle/jre/bin/java

when you run a «mvn» command, Maven will try to access to the java by adding /bin/java, thinking that the JAVA_HOME is in the root directory of Java installation.

But setting

JAVA_HOME=/usr/lib/jvm/java-7-oracle/

Maven will access add bin/java then it will work just fine.

answered Sep 18, 2015 at 19:37

Jad B.Jad B.

1,39614 silver badges14 bronze badges

This solution work for me…
just type
export PATH=$JAVA_HOME/jre/bin:$PATH in the terminal
then run mvn -version
it will show the same error but with a log like this

which: no javac in (/jre/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/puppetlabs/bin)
Warning: JAVA_HOME environment variable is not set.
Apache Maven 3.2.5 (12a6b3acb947671f09b81f49094c53f426d8cea1; 2014-12-14T22:59:23+05:30)
Maven home: /opt/apache-maven-3.2.5
Java version: 1.8.0_171, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.171-8.b10.el7_5.x86_64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-693.el7.x86_64", arch: "amd64", family: "unix"

now copy the Java home path i.e. /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.171-8.b10.el7_5.x86_64/jre in my case.

now type,

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.171-8.b10.el7_5.x86_64/jre

and the error gets resolve.
NOTE: paste your own path which is shown by your machine in mvn log at export JAVA_HOME.

answered Jul 8, 2018 at 5:34

You must take the whole directory where java is installed, in my case:

export JAVA_HOME=/usr/java/jdk1.8.0_31

Rizier123

58.3k16 gold badges96 silver badges153 bronze badges

answered Feb 24, 2015 at 0:18

ascoderascoder

5753 silver badges14 bronze badges

It happens because of the reason mentioned below :

If you see the mvn script: The code fails here —

Steps for debugging and fixing:

Step 1: Open the mvn script /Users/Username/apache-maven-3.0.5/bin/mvn
(Open with the less command like: less /Users/Username/apache-maven-3.0.5/bin/mvn)

Step 2: Find out the below code in the script:

  if [ -z "$JAVACMD" ] ; then
  if [ -n "$JAVA_HOME"  ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
      # IBM's JDK on AIX uses strange locations for the executables
      JAVACMD="$JAVA_HOME/jre/sh/java"
    else
      JAVACMD="$JAVA_HOME/bin/java"
    fi
  else
    JAVACMD="`which java`"
  fi
fi

if [ ! -x "$JAVACMD" ] ; then
  echo "Error: JAVA_HOME is not defined correctly."
  echo "  We cannot execute $JAVACMD"
  exit 1
fi

Step3: It is happening because JAVACMD variable was not set. So it displays the error.

Note: To Fix it

export JAVACMD=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/

Key: If you want it to be permanent
open emacs .profile

post the commands
and press Ctrl-x Ctrl-c ( save-buffers-kill-terminal ).

answered Jun 15, 2017 at 9:48

Shubham VermaShubham Verma

9671 gold badge10 silver badges13 bronze badges

If you are using mac-OS , export JAVA_HOME=/usr/libexec/java_home need to be changed to export JAVA_HOME=$(/usr/libexec/java_home) .
Steps to do this :

 $ vim .bash_profile

 export JAVA_HOME=$(/usr/libexec/java_home)

 $ source .bash_profile

where /usr/libexec/java_home is the path of your jvm

answered Jul 26, 2017 at 4:36

ishanbakshiishanbakshi

1,8852 gold badges19 silver badges37 bronze badges

Use these two commands (for Java 8):

sudo update-java-alternatives --set java-8-oracle
java -XshowSettings 2>&1 | grep -e 'java.home' | awk '{print "JAVA_HOME="$3}' | sed "s//jre//g" >> /etc/environment

answered Mar 25, 2018 at 18:11

XdgXdg

1,6752 gold badges25 silver badges42 bronze badges

In my case, the problem was in vscode.

I use windows and installed Ubuntu on my computer, so vscode terminal uses the Ubuntu. I just go to settings.json and change to cmd.exe again

answered Aug 29, 2019 at 19:42

I had this same issue but with open jdk and none of the answers here helped. The trouble was that the mvn script was appending /bin/java at the end of JAVA home while trying to run java commands.

The solution for me was to manually edit the /usr/local/apache-maven/apache-maven-3.3.9/bin/mvn script (your own script might be installed differently; just run which mvn) and change

   if [ -z "$JAVACMD" ] ; then
  if [ -n "$JAVA_HOME"  ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
      # IBM's JDK on AIX uses strange locations for the executables
      JAVACMD="$JAVA_HOME/jre/sh/java"
    else
      JAVACMD="$JAVA_HOME/bin/java" 
    fi
  else
    JAVACMD="`which java`"
  fi
 fi

if [ -n "$JAVA_HOME"  ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
      # IBM's JDK on AIX uses strange locations for the executables
      JAVACMD="$JAVA_HOME/jre/sh/java"
    else 
      JAVACMD="$JAVA_HOME"
    fi
  else
    JAVACMD="`which java`"
  fi
fi

answered Oct 22, 2020 at 20:07

larisoftlarisoft

1912 silver badges5 bronze badges

add in .bash_profile

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export PATH=$JAVA_HOME/jre/bin:$PATH

and then

source .bash_profile

answered Feb 18, 2022 at 11:58

Flavio TroiaFlavio Troia

2,3161 gold badge25 silver badges26 bronze badges

I had similar issue and it was not getting resolved even after editing and sourcing the .bash_profile, .bashrc file. I got it resolved by editing the maven.sh file directly.

export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.16.0.8-1.amzn2.0.1.x86_64
export M2_HOME=/opt/maven
export M2=/opt/maven/bin
export PATH=$PATH:$HOME/bin:$JAVA_HOME:$M2HOME:$M2

and then sourcing the file

source /etc/profile.d/maven.sh

For those who didnt get they issue resolved with other answers, give this a try as well.

answered Jan 3 at 10:35

eccentricCodereccentricCoder

8561 gold badge12 silver badges35 bronze badges

Источник

Какие программы используют JAVA_HOME

Ошибки, связанные с JAVA_HOME

Как установить переменную окружения JAVA_HOME в Windows

Резюме

`Cannot Determine a Valid Java Home`

Related Article — Java Home

Related Article — Java Error

What is a runtime environment?

JRE vs JDK

What are the causes of the «Java Runtime environment not found» error

Java download

How to install Java runtime environment step by step

How to install java runtime environment in Windows 10

How to set the environment variable for java in windows10

How to check what version of java I have?

Video tutorial-JRE error solved for Windows

How to uninstall java from Windows 10

A.) How to install java or JRE in Ubuntu 20.04 using the apt command

How to Remove java from Ubuntu 20.04

B.) How to install the latest java or JDK in Ubuntu 20.04 from oracle (manually)

Java JRE download steps —

How to set the «JAVA_HOME» variable in Ubuntu 20.04

Remove java runtime environment package using dpkg command

Video Tutorial — JRE error solved for Ubuntu

Frequently Asked Questions (FAQs)

Where is the java runtime environment on Windows 10?

What does Java Runtime Environment do?

What is the java runtime environment used for?

What is the java runtime environment?

How to set the java runtime environment in windows 10?

Ending notes

Сообщение об ошибке #1: не удалось создать виртуальную машину java.

Сообщение об ошибке #2: ошибка при открытии раздела реестра.

Сообщение об ошибке #3: Виртуальная машина java лаунчер не может найти основной класс: программа завершает работу

Сообщение об ошибке #4: не удалось открыть jarфайл.

1. Re: «Cannot determine a val >

2. Re: «Cannot determine a val >

Читайте также:

Какие программы используют JAVA_HOME

Ошибки, связанные с JAVA_HOME

Как установить переменную окружения JAVA_HOME в Windows

Резюме

Cannot Determine a Valid Java Home

Related Article — Java Home

Related Article — Java Error

What is a runtime environment?

JRE vs JDK

What are the causes of the «Java Runtime environment not found» error

Java download

How to install Java runtime environment step by step

How to install java runtime environment in Windows 10

How to set the environment variable for java in windows10

How to check what version of java I have?

Video tutorial-JRE error solved for Windows

How to uninstall java from Windows 10

A.) How to install java or JRE in Ubuntu 20.04 using the apt command

How to Remove java from Ubuntu 20.04

B.) How to install the latest java or JDK in Ubuntu 20.04 from oracle (manually)

Java JRE download steps —

How to set the «JAVA_HOME» variable in Ubuntu 20.04

Remove java runtime environment package using dpkg command

Video Tutorial — JRE error solved for Ubuntu

Frequently Asked Questions (FAQs)

Where is the java runtime environment on Windows 10?

What does Java Runtime Environment do?

What is the java runtime environment used for?

What is the java runtime environment?

How to set the java runtime environment in windows 10?

Ending notes

<img decoding="async" onError="javascript: wp_broken_images = window.wp_broken_images || function(){}; wp_broken_images(this);" src="http://juice-health.ru/images/error.jpg" />

Сообщение об ошибке #1: не удалось создать виртуальную машину java.

<img decoding="async" onError="javascript: wp_broken_images = window.wp_broken_images || function(){}; wp_broken_images(this);" src="http://juice-health.ru/images/error.jpg" />

Сообщение об ошибке #2: ошибка при открытии раздела реестра.

<img decoding="async" onError="javascript: wp_broken_images = window.wp_broken_images || function(){}; wp_broken_images(this);" src="http://juice-health.ru/images/error.jpg" />

Сообщение об ошибке #4: не удалось открыть jarфайл.

1. Re: «Cannot determine a val > <img decoding="async" onError="javascript: wp_broken_images = window.wp_broken_images || function(){}; wp_broken_images(this);" src="https://community.oracle.com/people/handat/avatar/46.png" />

2. Re: «Cannot determine a val > <img decoding="async" onError="javascript: wp_broken_images = window.wp_broken_images || function(){}; wp_broken_images(this);" src="https://community.oracle.com/people/D_Schneider/avatar/46.png" />

Читайте также:

`Cannot Determine a Valid Java Home`

1. Re: «Cannot determine a val >

2. Re: «Cannot determine a val >