Java virtual machine launcher error unable to access jarfile javaw jar - Исправление ошибок и поиск оптимальных решений проблем

I want to execute my program without using an IDE.
I’ve created a jar file and an exectuable jar file. When
I double click the exe jar file, nothing happens, and when I try to use the command in cmd it gives me this:

Error: Unable to access jarfile <path>

I use the command: java -jar Calculator.jar

How I created the jar:

Right click on project folder (Calculator)
Select
Click on Java Folder and select «Exectuable Jar File», then select next
Launch Configuration: Main — Calculator
Create Export Destination
Hit «Finish» and profit! Well, not really.

Raedwald

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asked Aug 14, 2012 at 0:01

Joseph SmithJoseph Smith

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I had encountered this issue when I had run my Jar file as

java -jar TestJar

instead of

java -jar TestJar.jar

Missing the extension .jar also causes this issue.

answered Sep 16, 2014 at 10:26

Vinay KadalagiVinay Kadalagi

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Fixed

I just placed it in a different folder and it worked.

Paolo Forgia

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answered Aug 15, 2012 at 4:05

Joseph SmithJoseph Smith

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[Possibly Windows only]

Beware of spaces in the path, even when your jar is in the current working directory. For example, for me this was failing:

java -jar myjar.jar

I was able to fix this by givng the full, quoted path to the jar:

java -jar "%~dp0myjar.jar"

Credit goes to this answer for setting me on the right path….

answered Mar 15, 2016 at 3:15

Robert BrownRobert Brown

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I had this issue under CygWin in Windows. I have read elsewhere that Java does not understand the CygWin paths (/cygdrive/c/some/dir instead of C:somedir) — so I used a relative path instead: ../../some/dir/sbt-launch.jar.

answered Aug 4, 2016 at 17:18

radumanolescuradumanolescu

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I had the same issue when trying to launch the jar file. The path contained a space, so I had to place quotes around. Instead of:

java -jar C:Path to FilemyJar.jar

i had to write

java -jar "C:Path to FilemyJar.jar"

Dharman♦

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answered Sep 6, 2015 at 18:05

Just came across the same problem trying to make a bad USB…

I tried to run this command in admin cmd

java -jar c:fwduckyduckencode.jar -I c:fwduckyHelloWorld.txt  -o c:fwduckyinject.bin

But got this error:

Error: unable to access jarfile c:fwduckyduckencode.jar

Solution

1st step

Right click the jarfile in question. Click properties.
Click the unblock tab in bottom right corner.
The file was blocked, because it was downloaded and not created on my PC.

2nd step

In the cmd I changed the directory to where the jar file is located.

cd C:fwducky

Then I typed dir and saw the file was named duckencode.jar.jar

So in cmd I changed the original command to reference the file with .jar.jar

java -jar c:fwduckyduckencode.jar.jar -I c:fwduckyHelloWorld.txt  -o c:fwduckyinject.bin

That command executed without error messages and the inject.bin I was trying to create was now located in the directory.

Hope this helps.

mcls

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answered Oct 23, 2015 at 20:26

None of the provided answers worked for me on macOS 11 Big Sur. The problem turned out to be that programs require special permission to access the Desktop, Documents, and Downloads folders, and Java breaks both the exception for directly opened files and the permission request popup.

Fixes:

Move the .jar into a folder that isn’t (and isn’t under) Documents, Desktop, or Downloads.
Manually grant the permission. Go to System Preferences → Security and Privacy → Privacy → Files and Folders → java, and check the appropriate folders.

answered Jan 27, 2021 at 9:50

twhbtwhb

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I had a similar problem and I even tried running my CMD with administrator rights, but it did not solve the problem.

The basic thing is to make sure to change the Directory in cmd to the current directory where your jar file is.

Do the following steps:

Copy jar file to Desktop.
Run CMD
Type command cd desktop
Then type java -jar filename.jar

This should work.

Edit: From JDK-11 onwards ( JEP 330: Launch Single-File Source-Code Programs )

Since Java 11, java command line tool has been able to run a single-file source-code directly. e.g.

java filename.java

answered Dec 26, 2018 at 6:22

Vishwa RatnaVishwa Ratna

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If you are using OSX, downloaded files are tagged with a security flag that prevents unsigned applications from running.

to check this you can view extended attributes on the file

$ ls -l@
-rw-r--r--@ 1 dave  staff  17663235 13 Oct 11:08 server-0.28.2-java8.jar
com.apple.metadata:kMDItemWhereFroms         619
com.apple.quarantine          68

You can then clear the attributes with

xattr -c file.jar

answered Oct 13, 2017 at 10:24

nick foxnick fox

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It can also happen if you don’t properly supply your list of parameters. Here’s what I was doing:

java -jar test@gmail.com testing_subject file.txt test_send_emails.jar

Instead of the correct version:

java -jar test_send_emails.jar test@gmail.com testing_subject file.txt

answered Jul 15, 2015 at 8:06

BuffaloBuffalo

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This worked for me.

cd /path/to/the/jar/

java -jar ./Calculator.jar

answered Nov 15, 2016 at 18:18

For me it happens if you use native Polish chars in foldername that is in the PATH.
So maybe using untypical chars was the reason of the problem.

answered Oct 8, 2015 at 9:52

HuxwellHuxwell

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sometime it happens when you try to (run or create) a .jar file under /libs folder by right click it in android studio. you can select the dropdown in top of android stuio and change it to app. This will work

answered Feb 17, 2016 at 10:44

anand krishanand krish

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My particular issue was caused because I was working with directories that involved symbolic links (shortcuts). Consequently, trying java -jar ../../myJar.jar didn’t work because I wasn’t where I thought I was.

Disregarding relative file paths fixed it right up.

answered Nov 18, 2015 at 23:31

MattSayarMattSayar

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In my case the suggested file name to be used was jarFile*.jar in the command line. The file in the folder was jarFile-1.2.3.jar . So I renamed the file to jarFile. Then I used jarFile.jar instead of jarFile*.jar and then the problem got resolved

answered Jan 22, 2017 at 6:41

sukusuku

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It can happen on a windows machine when you have spaces in the names of the folder. The solution would be to enter the path between » «.
For example:

java -jar c:my folderx.jar    --> 
java -jar "c:my folderx.jar"

Sundar

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answered Oct 31, 2017 at 8:57

assafassaf

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To avoid any permission issues, try to run it as administrator. This worked for me on Win10.

answered Mar 14, 2018 at 15:14

GicoGico

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I know this thread is years ago and issue was fixed too. But I hope this would helps someone else in future since I’ve encountered some similar issues while I tried to install Oracle WebLogic 12c and Oracle OFR in which its installer is in .jar format. For mine case, it was either didn’t wrap the JDK directory in quotes or simply typo.

Run Command Prompt as administrator and execute the command in this format. Double check the sentence if there is typo.

"C:Program FilesJavajdk1.xxxxxbinjava" -jar C:UsersxxxDownloadsxxx.jar

If it shows something like JRE 1.xxx is not a valid JDK Java Home, make sure the System variables for JAVA_HOME in Environment Variables is pointing to the correct JDK directory. JDK 1.8 or above is recommended (2018).

A useful thread here, you may refer it: Why its showing your JDK c:program filesjavajre7 is not a valid JDK while instaling weblogic server?

answered Oct 23, 2018 at 6:54

not_Princenot_Prince

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For me it happen because i run it with default java version (7) and not with compiled java version (8) used to create this jar.

So i used:

%Java8_64%binjava -jar myjar.jar

Instead of java 7 version:

java -jar myjar.jar

answered Feb 9, 2020 at 19:19

Adir DAdir D

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I had a similar problem where TextMate or something replaced the double quotes with the unicode double quotes.

Changing my SELENIUM_SERVER_JAR from the unicode double quotes to regular double quotes and that solved my problem.

answered Mar 30, 2016 at 18:05

TankorSmashTankorSmash

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this is because you are looking for the file in the wrong path
1. look for the path of the folder where you placed the file
2. change the directory cd in cmd use the right path

answered Jun 19, 2016 at 21:39

I use NetBeans and had the same issue. After I ran build and clean project my program was executable. The Java documentation says that the build/clean command is for rebuilding the project from scratch basically and removing any past compiles. I hope this helps. Also, I’d read the documentation. Oracle has NetBeans and Java learning trails. Very helpful. Good luck!

answered Jul 16, 2017 at 13:43

Maybe you have specified the wrong version of your jar.

answered Sep 21, 2017 at 21:52

cosbor11cosbor11

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I finally pasted my jar file into the same folder as my JDK so I didn’t have to include the paths. I also had to open the command prompt as an admin.

Right click Command Prompt and «Run as administrator»
Navigate to the directory where you saved your jdk to
In the command prompt type: java.exe -jar <jar file name>.jar

answered Jan 14, 2020 at 15:04

Keep the file in same directory where you are extracting it. That worked for me.

answered Jan 22, 2020 at 2:18

Aishwary joshiAishwary joshi

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This is permission issue, see if the directory is under your User.
That’s why is working in another folder!

answered Jul 31, 2020 at 13:05

DimitriosDimitrios

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Rename the jar file and try

Explanation :
yes, I know there are many answers still I want to add one point here which I faced.

I built the jar and I moved it into the server where I deploy (This is the normal process)
here the file name which I moved already existed in the server, here the file will override obviously right. In this case, I faced this issue.
maybe at the time of overriding there can be a permission copy issue.

Hope this will help someone.

answered Aug 3, 2020 at 14:12

Have you tried to run it under administrator privoleges?
meaning, running the command in «Run As» and then select administrator with proper admin credentials

worked for me

answered May 14, 2019 at 20:28

I was trying this:

After giving the file read, write, execute priviledges:

chmod 777 java-repl.jar

alias jr="java -jar $HOME/Dev/java-repl/java-repl.jar"

Unable to access bla bla…, this was on Mac OS though

So I tried this:

alias jr="cd $HOME/Dev/java-repl/ && java -jar java-repl.jar"

answered Jul 23, 2019 at 8:53

KingleeKinglee

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This did not work «Unable to access jarfile»

"C:Program Filesjavajdk-13+33-jrebinjavaw.exe" -jar "C:Program FilesMaxim Integrated Products1-Wire Drivers x64 OneWireViewer.jar"

This does work

"C:Program Filesjavajdk-13+33-jrebinjavaw.exe" -jar "C:Program FilesMaxim Integrated Products1-Wire Drivers x64OneWireViewer.jar"

The difference is the single space in front of OneWireViewer.jar not withstanding that it is surrounded with quotes and even has other spaces.

answered Oct 13, 2019 at 15:21

Источник

Содержание

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10
Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10
Как я могу избавиться от Unable to access jarfile error на Windows 10?
1. Добавьте самую последнюю версию Java в Windows
2. Выберите Java в качестве программы по умолчанию для файлов JAR.
3. Выберите параметр Показать скрытые файлы, папки и диски.
4. Откройте программное обеспечение Jarfix
Unable to Access JarFile: 3 Ways to Run JAR Files
Changing the default app for JAR files should fix this issue
Why does it say unable to access jar?
How can I fix the unable to access JarFile error?
1. Update your Java version
2. Select Java as the default program for JarFiles
3. Open the Jarfix Software
[Solved] How to Fix Java Virtual Machine Launcher Error
4 Solutions to Solve Java Virtual Machine Launcher Error
Remove Malware on your computer
Uninstalling Java and re-installing
Clearing Computer Memory
Miscellaneous Fix
Conclusion

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Возможно, плагины для браузера Java вышли из моды, но есть еще много программ, работающих на Java . Вы можете открывать программы Java с файлами JAR.

Однако некоторые пользователи программного обеспечения Java не всегда могут открывать программы JAR, когда появляется сообщение об ошибке « Ошибка: невозможно получить доступ к jarfile ». Вот несколько решений для сообщения об ошибке jarfile.

Как я могу избавиться от Unable to access jarfile error на Windows 10?

1. Добавьте самую последнюю версию Java в Windows

Сначала убедитесь, что у вас установлена самая последняя версия Java. Самая последняя версия на данный момент — Java 8 161. Таким образом вы можете обновить Java в Windows 10.

Сначала нажмите сочетание клавиш Win + R, чтобы открыть команду «Выполнить».
Введите appwiz.cpl в текстовом поле «Выполнить» и нажмите кнопку « ОК» .
Введите «Java» в поле поиска программ поиска, как показано на снимке ниже.

Затем выберите Java, чтобы проверить, какая у вас версия. Версия отображается в нижней части окна и отображается в столбце Версия.
Если у вас не установлена самая последняя версия Java, нажмите кнопку « Удалить» .
Нажмите кнопку Да , чтобы подтвердить.
Откройте эту веб-страницу в вашем браузере.

Нажмите кнопку Free Java Download , чтобы сохранить мастер установки JRE.
После этого может открыться диалоговое окно, из которого можно нажать кнопку « Выполнить» , чтобы запустить установщик JRE. Если нет, откройте папку, в которой вы сохранили мастер установки, щелкните правой кнопкой мыши мастер установки Java и выберите Запуск от имени администратора .
Нажмите кнопку Install в окне мастера установки, чтобы установить Java.

Ничего не происходит, когда вы нажимаете на Запуск от имени администратора? Не волнуйтесь, у нас есть правильное решение для вас.

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

Сообщения об ошибках Jarfile обычно появляются, когда Java не настроена в качестве программного обеспечения по умолчанию для файла JAR . Вместо этого утилита архивирования может быть связанной программой по умолчанию для JAR.

Таким образом, выбор Java в качестве программы по умолчанию для файла JAR может запустить его программу. Вот как вы можете настроить программное обеспечение по умолчанию для формата JAR.

Откройте проводник и папку, в которой находится файл JAR.
Щелкните правой кнопкой мыши файл JAR и выберите « Открыть с помощью» > « Выбрать программу по умолчанию» > « Выбрать другое приложение», чтобы открыть окно на снимке непосредственно ниже.

Выберите Java, если он указан среди программ по умолчанию.
Если Java отсутствует в списке программ, выберите « Искать другое приложение на этом ПК» .
Затем перейдите в папку Java, выберите « Java» и нажмите кнопку « Открыть» .
Нажмите кнопку ОК в окне Открыть с помощью.
Нажмите на JAR, чтобы запустить его программу.

3. Выберите параметр Показать скрытые файлы, папки и диски.

Сообщение об ошибке « невозможно получить доступ к jarfile » также может появиться, если не выбран параметр « Показать скрытые файлы, папки и диски» . Чтобы выбрать эту опцию, откройте проводник.
Откройте вкладку «Вид» и нажмите кнопку « Параметры» , чтобы открыть окно, расположенное ниже.

Выберите вкладку Вид, показанный непосредственно ниже.

Выберите параметр « Показывать скрытые файлы, папки и файлы и папки дисков» .
Нажмите кнопку Применить .
Нажмите кнопку ОК , чтобы закрыть окно.

4. Откройте программное обеспечение Jarfix

Jarfix — это легковесная программа, предназначенная для исправления не запускающихся программ Java. Программа исправляет ассоциации типов файлов JAR.

Нажмите jarfix.exe на этой веб-странице, чтобы сохранить программное обеспечение в папке. Затем вы можете щелкнуть jarfix.exe, чтобы открыть окно ниже и исправить сопоставление JAR. Это все, что нужно сделать, и в окне Jarfix больше нет вариантов для выбора.

Это несколько решений, которые могут исправить ошибку « невозможность доступа к jarfile » и запустить программное обеспечение JAR. Для получения дополнительной информации о том, как запустить файлы JAR в Windows, ознакомьтесь с этой статьей .

Если у вас есть другие вопросы, не стесняйтесь оставлять их в разделе комментариев ниже.

СВЯЗАННЫЕ ИСТОРИИ, ЧТОБЫ ПРОВЕРИТЬ:

Источник

Unable to Access JarFile: 3 Ways to Run JAR Files

Changing the default app for JAR files should fix this issue

The Unable to access the JAR file is a standard error when you don’t have compatible software to open it.
Some users reported that using stable file openers fixed the issue for them.
You can also fix this issue by uninstalling and downloading the latest version of Java.

Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here) .

Click Start Scan to find Windows issues that could be causing PC problems.

Click Repair All to fix issues affecting your computer’s security and performance

Restoro has been downloaded by 0 readers this month.

Java browser plug-ins might have gone out of fashion, but many programs run off Java. For example, you can open Java programs with JarFiles, among other software for opening JAR files.

However, some Java software users can’t always open JAR programs with the Unable to access JarFile error message popping up. This guide will show you some practical ways to get past this error message.

Why does it say unable to access jar?

The inability to access JarFile on Minecraft or Forge can be caused by mistakes on your path or issues with the software. Below are some of the prevalent causes:

Outdated Java version: If your Java version is obsolete, you cannot access JarFile using the docker container. You need to update Java to the latest version.

Wrong default program: Sometimes, this issue might be because you have not set the default program to open the JarFiles. Choosing Java as the default app for opening JAR files should fix this.

Issues with the JAR file path: If the path to your jar file is incorrect, you can get this error. The solution here is to ensure the path is correct.

How can I fix the unable to access JarFile error?

Before proceeding to the fixes in this guide, try the preliminary troubleshooting steps below:

Add .jar extension to the JAR file name

Beware of spaces in the JAR file path

Add quotes to the JAR file path if it contains space

Move the JAR file to another folder

Use a file opener software

If the fixes above fail to solve the issue, you can now move to the fixes below:

1. Update your Java version

Press the Windows key + R , type appwiz.cpl, and click OK.

Right-click the Java app and select the Uninstall option.

Now, go to the official website to download the latest version of the Java app.

A broken or outdated app can cause the unable to access the JarFile issue. Downloading the latest version of the app should fix the problem.

2. Select Java as the default program for JarFiles

Open File Explorer and the folder that includes your JAR file.

Right-click the file and select Open with, and then Choose another app.

Select Java if it’s listed among the default programs.

If Java isn’t listed among the programs, select the Look for another app on this PC option.

Then browse to the Java bin folder, select Java and press the Open button.

JAR file error messages usually pop up when Java isn’t configured as the default software for a JAR file. This can be the cause of the unable to access JarFile.

Setting Java as the default program should fix the issue here.

Read more about this topic

3. Open the Jarfix Software

Click jarfix.exe on this webpage to save the software to a folder.
Now, open the folder and double-click the jarfix.exe option.
The tool will start and fix issues with your jar file extension.

In some cases, the unable to access JarFile issue on IntelliJ can be because of problems with the file type associations. This Jarfix.exe software will help you fix this issue and restore normalcy on your PC.

Those are a few resolutions that might fix the unable to access JarFile error and kick-start your Java software. After that, you only need to follow the instructions carefully, and the issue should be resolved.

For further details on installing a JAR file in Windows 10, check our guide to make the process easy.

If you have any other questions, please leave them in the comments section below.

Still having issues? Fix them with this tool:

Источник

[Solved] How to Fix Java Virtual Machine Launcher Error

The virtual machine or processor inside your computer that provides an environment for all the Java programs to run on your computer is the Java Virtual Machine. It is a set of specifications of an abstract machine that loads the file containing the programming, interprets it and also helps it being executed it.

Thus the JVM takes the byte code of the program, which is stored in a ‘.class.’ Format and converts it into the operating system specific code, which the machine can read and hence can be run on your computer. So without the proper functioning of this virtual machine on our computers, the many Java-based applications will not be running on our computers!

But that is precisely what happens very often (while booting the computer or opening a java based application) and we get an error called the Java Virtual Machine Launcher Error. In this article, we will be talking about the standard Java Virtual Machine Launcher errors, the kind of error messages that will come up when you are having a particular problem and how to go about solving these problems.

4 Solutions to Solve Java Virtual Machine Launcher Error

Remove Malware on your computer

If the error message is shown is this- “Error Message: Java Virtual Machine Launcher could not find the main class: the program will now exit” then the Microsoft Malicious Software Removal tool, which is an inbuilt utility tool in Microsoft can be used to remove any Malware from your computer.

To access this tool, go to the Search Windows option in your Start menu and type “mrt” and press Enter. In The tool, choose the option for “Full Scan” and follow the on-screen wizard to start the scan. The scan may take a few moments to complete and in the process will also remove all the Spyware, Adware and Malware on your computer. Reboot your computer once the scan is complete.

Now using the System Configuration tool on your computer the rest of the problem. To launch this, you need to type “msconfig” in the Search Windows option that you can find in the Start Menu. In this utility tool, click the “Startup” tab, which opens a long list. Scan the list to find the following- “WJView.exe” and “javaw.exe.” and uncheck these options.

Uninstalling Java and re-installing

As the heading suggests, this solution involves uninstalling the problematic Java Virtual Machine launcher from your computer and then installing it afresh. This is a quite primitive but effective solution to Java Virtual Machine launching problems when the error message shows- “Error Message: Error opening registry key.”

Before uninstallation, open the Windowssystem32 and delete the following files- ‘javaws.exe’, ‘java.exe’, ‘javaw.exe’ and any other Java executable file that you can find. For uninstalling JVM, open the ‘Programs and Features’ tab in the Control Panel of your desktop. Scroll down the list to find Java runtime and uninstall it.

For re-installing Java runtime, visit java.com: Java + You and download the most compatible version. Choosing the correct version is very important as an incompatible version of Java Runtime is one of the biggest reasons for the error.

Clearing Computer Memory

One of the most frequent reasons for the Java Virtual Machine launcher problems is insufficient memory in your COMPUTER. This insufficiency may be in your overall computer memory or in the amount of memory you allocate to Java Runtime. To solve the former, just get rid of all those programs that you don’t use, and you will have a clutter-free (and hopefully a problem-less) computer.

When Java has allocates insufficient memory space, then the error that comes is- “Error Message: Could not create the Java Virtual Machine.” This is one of the most common Java Virtual Machine Launcher errors that you encounter during playing games on Java like Minecraft.

To solve the memory space allocated to Java, go to the Systems options in Control Panel and open the Advanced options window. Here, clicking on the Environment Variables option, you will find a ‘System Variables’ option. Click on the ‘New’ variable option and put the name of the variable as ‘_JAVA_OPTIONS’ with a value of ‘Xmx512M’. (Xmx refers to the maximum space and Xms refer to the minimum space that you can allocate to Java)

Miscellaneous Fix

This solution is for the Java Virtual Machine Launcher error prompt- “Error Message: Unable to access jarfile.” Which comes when trying to open some java based applications. Start by opening the ‘Default Programs’ tab from the Start Menu. Scan the list to find an option called- ‘Associate a file type or protocol with a program’ and select it.

There will be an extension ‘.jar’- Click on this and change the default program to ‘JAVA virtual machine launcher’. Clicking on ‘Close’ will save the changes. Try reopening the program that was earlier causing the problem.

Conclusion

Hopefully, by following this article, you will solve the Java Virtual Machine Launcher error, and all your Java-based applications and games will be up and running smoothly again. There is also this hack if you want to assess your Java skills! All suggestions regarding alternative methods to resolve the launcher error are welcome.

Источник

Error: Unable to access jarfile <path>

I use the command: java -jar Calculator.jar

How I created the jar:

Right click on project folder (Calculator)
Select
Click on Java Folder and select «Exectuable Jar File», then select next
Launch Configuration: Main — Calculator
Create Export Destination
Hit «Finish» and profit! Well, not really.

Raedwald

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asked Aug 14, 2012 at 0:01

Joseph SmithJoseph Smith

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I had encountered this issue when I had run my Jar file as

java -jar TestJar

instead of

java -jar TestJar.jar

Missing the extension .jar also causes this issue.

answered Sep 16, 2014 at 10:26

Vinay KadalagiVinay Kadalagi

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Fixed

I just placed it in a different folder and it worked.

Paolo Forgia

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answered Aug 15, 2012 at 4:05

Joseph SmithJoseph Smith

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[Possibly Windows only]

Beware of spaces in the path, even when your jar is in the current working directory. For example, for me this was failing:

java -jar myjar.jar

I was able to fix this by givng the full, quoted path to the jar:

java -jar "%~dp0myjar.jar"

Credit goes to this answer for setting me on the right path….

answered Mar 15, 2016 at 3:15

Robert BrownRobert Brown

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answered Aug 4, 2016 at 17:18

radumanolescuradumanolescu

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I had the same issue when trying to launch the jar file. The path contained a space, so I had to place quotes around. Instead of:

java -jar C:Path to FilemyJar.jar

i had to write

java -jar "C:Path to FilemyJar.jar"

Dharman♦

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answered Sep 6, 2015 at 18:05

Just came across the same problem trying to make a bad USB…

I tried to run this command in admin cmd

java -jar c:fwduckyduckencode.jar -I c:fwduckyHelloWorld.txt  -o c:fwduckyinject.bin

But got this error:

Error: unable to access jarfile c:fwduckyduckencode.jar

Solution

1st step

Right click the jarfile in question. Click properties.
Click the unblock tab in bottom right corner.
The file was blocked, because it was downloaded and not created on my PC.

2nd step

In the cmd I changed the directory to where the jar file is located.

cd C:fwducky

Then I typed dir and saw the file was named duckencode.jar.jar

So in cmd I changed the original command to reference the file with .jar.jar

java -jar c:fwduckyduckencode.jar.jar -I c:fwduckyHelloWorld.txt  -o c:fwduckyinject.bin

That command executed without error messages and the inject.bin I was trying to create was now located in the directory.

Hope this helps.

mcls

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answered Oct 23, 2015 at 20:26

Fixes:

Move the .jar into a folder that isn’t (and isn’t under) Documents, Desktop, or Downloads.
Manually grant the permission. Go to System Preferences → Security and Privacy → Privacy → Files and Folders → java, and check the appropriate folders.

answered Jan 27, 2021 at 9:50

twhbtwhb

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I had a similar problem and I even tried running my CMD with administrator rights, but it did not solve the problem.

The basic thing is to make sure to change the Directory in cmd to the current directory where your jar file is.

Do the following steps:

Copy jar file to Desktop.
Run CMD
Type command cd desktop
Then type java -jar filename.jar

This should work.

Edit: From JDK-11 onwards ( JEP 330: Launch Single-File Source-Code Programs )

Since Java 11, java command line tool has been able to run a single-file source-code directly. e.g.

java filename.java

answered Dec 26, 2018 at 6:22

Vishwa RatnaVishwa Ratna

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If you are using OSX, downloaded files are tagged with a security flag that prevents unsigned applications from running.

to check this you can view extended attributes on the file

$ ls -l@
-rw-r--r--@ 1 dave  staff  17663235 13 Oct 11:08 server-0.28.2-java8.jar
com.apple.metadata:kMDItemWhereFroms         619
com.apple.quarantine          68

You can then clear the attributes with

xattr -c file.jar

answered Oct 13, 2017 at 10:24

nick foxnick fox

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It can also happen if you don’t properly supply your list of parameters. Here’s what I was doing:

java -jar test@gmail.com testing_subject file.txt test_send_emails.jar

Instead of the correct version:

java -jar test_send_emails.jar test@gmail.com testing_subject file.txt

answered Jul 15, 2015 at 8:06

BuffaloBuffalo

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This worked for me.

cd /path/to/the/jar/

java -jar ./Calculator.jar

answered Nov 15, 2016 at 18:18

For me it happens if you use native Polish chars in foldername that is in the PATH.
So maybe using untypical chars was the reason of the problem.

answered Oct 8, 2015 at 9:52

HuxwellHuxwell

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answered Feb 17, 2016 at 10:44

anand krishanand krish

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Disregarding relative file paths fixed it right up.

answered Nov 18, 2015 at 23:31

MattSayarMattSayar

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answered Jan 22, 2017 at 6:41

sukusuku

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It can happen on a windows machine when you have spaces in the names of the folder. The solution would be to enter the path between » «.
For example:

java -jar c:my folderx.jar    --> 
java -jar "c:my folderx.jar"

Sundar

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answered Oct 31, 2017 at 8:57

assafassaf

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To avoid any permission issues, try to run it as administrator. This worked for me on Win10.

answered Mar 14, 2018 at 15:14

GicoGico

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Run Command Prompt as administrator and execute the command in this format. Double check the sentence if there is typo.

"C:Program FilesJavajdk1.xxxxxbinjava" -jar C:UsersxxxDownloadsxxx.jar

A useful thread here, you may refer it: Why its showing your JDK c:program filesjavajre7 is not a valid JDK while instaling weblogic server?

answered Oct 23, 2018 at 6:54

not_Princenot_Prince

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For me it happen because i run it with default java version (7) and not with compiled java version (8) used to create this jar.

So i used:

%Java8_64%binjava -jar myjar.jar

Instead of java 7 version:

java -jar myjar.jar

answered Feb 9, 2020 at 19:19

Adir DAdir D

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I had a similar problem where TextMate or something replaced the double quotes with the unicode double quotes.

Changing my SELENIUM_SERVER_JAR from the unicode double quotes to regular double quotes and that solved my problem.

answered Mar 30, 2016 at 18:05

TankorSmashTankorSmash

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this is because you are looking for the file in the wrong path
1. look for the path of the folder where you placed the file
2. change the directory cd in cmd use the right path

answered Jun 19, 2016 at 21:39

answered Jul 16, 2017 at 13:43

Maybe you have specified the wrong version of your jar.

answered Sep 21, 2017 at 21:52

cosbor11cosbor11

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I finally pasted my jar file into the same folder as my JDK so I didn’t have to include the paths. I also had to open the command prompt as an admin.

Right click Command Prompt and «Run as administrator»
Navigate to the directory where you saved your jdk to
In the command prompt type: java.exe -jar <jar file name>.jar

answered Jan 14, 2020 at 15:04

Keep the file in same directory where you are extracting it. That worked for me.

answered Jan 22, 2020 at 2:18

Aishwary joshiAishwary joshi

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This is permission issue, see if the directory is under your User.
That’s why is working in another folder!

answered Jul 31, 2020 at 13:05

DimitriosDimitrios

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Rename the jar file and try

Explanation :
yes, I know there are many answers still I want to add one point here which I faced.

Hope this will help someone.

answered Aug 3, 2020 at 14:12

Have you tried to run it under administrator privoleges?
meaning, running the command in «Run As» and then select administrator with proper admin credentials

worked for me

answered May 14, 2019 at 20:28

I was trying this:

After giving the file read, write, execute priviledges:

chmod 777 java-repl.jar

alias jr="java -jar $HOME/Dev/java-repl/java-repl.jar"

Unable to access bla bla…, this was on Mac OS though

So I tried this:

alias jr="cd $HOME/Dev/java-repl/ && java -jar java-repl.jar"

answered Jul 23, 2019 at 8:53

KingleeKinglee

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This did not work «Unable to access jarfile»

"C:Program Filesjavajdk-13+33-jrebinjavaw.exe" -jar "C:Program FilesMaxim Integrated Products1-Wire Drivers x64 OneWireViewer.jar"

This does work

"C:Program Filesjavajdk-13+33-jrebinjavaw.exe" -jar "C:Program FilesMaxim Integrated Products1-Wire Drivers x64OneWireViewer.jar"

The difference is the single space in front of OneWireViewer.jar not withstanding that it is surrounded with quotes and even has other spaces.

answered Oct 13, 2019 at 15:21

Источник

Содержание

Java virtual machine launcher ошибка как исправить на windows 10 unable to access jarfile
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.
Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10
Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10
Как я могу избавиться от Unable to access jarfile error на Windows 10?
1. Добавьте самую последнюю версию Java в Windows
2. Выберите Java в качестве программы по умолчанию для файлов JAR.
3. Выберите параметр Показать скрытые файлы, папки и диски.
4. Откройте программное обеспечение Jarfix
Исправлено: Невозможно получить доступ к Jarfile —
Что вызывает ошибку «Невозможно получить доступ к Jarfile»?
Решение 1. Установка последнего обновления Java
Решение 2. Настройка файловой ассоциации по умолчанию
Решение 3. Проверка на наличие вредоносных программ
Решение 4. Проверка документации (для разработчиков)
Fix Java Virtual Machine Launcher Error on Windows 11/10
What is Java in simple words?
What is a Java virtual machine error?
How to fix Java Virtual Machine Launcher Error
1] Add a new system variable for Java
2] Run the program as an administrator
FIX: Unable to access JarFile error on Windows 10
How can I get rid of Unable to access JarFile error?
1. Use the File Viewer Plus 4 tool
File Viewer Plus 4
2. Update your Java version
3. Select Java as the default program for JarFiles
4. Select the Show Hidden Files, Folders, and Drives option
5. Open the Jarfix Software

Java virtual machine launcher ошибка как исправить на windows 10 unable to access jarfile

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.

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.

➦Перейти к расширенным свойствам системы.

➦Нажмите кнопку ‘переменные среды’.

➦В системных переменных, нажмите кнопку ‘новый’.

➦Поставьте новое имя переменной: _JAVA_OPTIONS

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

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.

Источник

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Как я могу избавиться от Unable to access jarfile error на Windows 10?

1. Добавьте самую последнюю версию Java в Windows

JAR

JAR2

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

JAR3

3. Выберите параметр Показать скрытые файлы, папки и диски.

JAR6

JAR4

4. Откройте программное обеспечение Jarfix

JAR5

Если у вас есть другие вопросы, не стесняйтесь оставлять их в разделе комментариев ниже.

СВЯЗАННЫЕ ИСТОРИИ, ЧТОБЫ ПРОВЕРИТЬ:

Источник

Исправлено: Невозможно получить доступ к Jarfile —

Не удалось открыть jarfile

Что вызывает ошибку «Невозможно получить доступ к Jarfile»?

Прежде чем переходить к решениям, убедитесь, что у вас есть активное подключение к Интернету и привилегии учетной записи администратора.

Решение 1. Установка последнего обновления Java

Как упоминалось ранее, для программ, запускающих файлы JAR, на вашем компьютере должна быть установлена правильная архитектура, т. Е. Java. Кроме того, это должна быть последняя версия, выпущенная для пользователей. Если у вас не установлена Java, вы можете напрямую загрузить и установить ее. Если у вас более старая версия, мы сначала удалим ее, а затем установим последнюю с официального сайта.

Удаление старого Java — менеджера приложений

Решение 2. Настройка файловой ассоциации по умолчанию

Также может появиться сообщение об ошибке: Java не установлен в качестве обработчика по умолчанию для файлов JAR на вашем компьютере. Программа архивации может быть выбрана в качестве средства открытия JAR-файлов по умолчанию, что может не дать ожидаемого результата. Мы можем попробовать изменить сопоставление файлов и проверить, устраняет ли это проблему.

Открытие JAR-файлов с помощью Java

Нажмите Windows + I, чтобы запустить настройки. Теперь перейдите к Программы и выберите Приложения по умолчанию с левой панели навигации.

Изменение файловой ассоциации по умолчанию

Решение 3. Проверка на наличие вредоносных программ

Если вы по-прежнему получаете сообщение об ошибке при запуске операционной системы или любой другой программы, вам следует проверить, нет ли на вашем компьютере вирусов или вредоносных программ. Эти объекты используют ваш реестр и после изменения нескольких ключей делают JAR-файл непригодным для использования.

Сканирование с использованием вредоносных байтов

Вы должны выполнить тщательную проверку на своем компьютере, а затем выполнить Решение 1, чтобы убедиться, что все записи и ассоциации файлов удалены, а затем переделаны при переустановке Java. Вы проверяете нашу статью о том, как удалить вредоносное ПО, используя Malwarebytes.

Решение 4. Проверка документации (для разработчиков)

Разработчики также испытывают это сообщение об ошибке, когда они пытаются запустить файлы JAR, когда они кодируют с Java или другим языком. Это может быть очень хлопотно и, вероятно, остановит вашу задачу под рукой.

Ошибка кодирования Java

Для диагностики и устранения ошибки рекомендуется прочитайте документацию по функции или утилиту, которую вы используете для открытия или запуска файлов JAR. Возможно, вы неправильно указали путь к файлу или, возможно, передали неверные параметры в функцию. Вы можете легко получить демонстрации функций, которые вы пытаетесь реализовать на популярных веб-сайтах по кодированию, таких как Stack Overflow. Определите свою ошибку и исправьте ее, прежде чем снова запустить программу / функцию.

Источник

Fix Java Virtual Machine Launcher Error on Windows 11/10

A programming language like Java is more than just a way to write programs; game and app developers use it too. However, it’s very common to experience Java crashes. If you are having trouble when trying to launch an application that is built around Java then this guide will help you fix the problem.

Not all Java virtual machine errors are the same. They can occur for many different reasons. In this article, we will explain what the most common causes of Java virtual machine launcher error and how to fix them.

What is Java in simple words?

Java is a popular programming language that can run on a variety of different operating systems and devices. It has many different uses, including in web development, mobile applications, desktop applications, and server-side programming. Java generates a virtual machine (VM) that executes the code written in Java. A Java virtual machine launcher error can occur if something goes wrong with the data or code that’s being processed by the Java virtual machine.

What is a Java virtual machine error?

A Java virtual machine error, also known as a JVM error, is classified as an error generated by the Java Virtual Machine. When this type of error occurs, it usually means that the computer cannot read or understand the code. This can happen for a number of reasons such as when the computer isn’t updated with required patches or if it’s not compatible with Java. If you come across a JVM error while using your computer, it’s important to know how to recover from this problem. Here, are some steps to take in order to fix this issue and continue using your computer.

How to fix Java Virtual Machine Launcher Error

Now let’s take a closer look at them:

1] Add a new system variable for Java

To fix this error, you must add a new variable to Java’s system and see if it solves the error. Please follow the steps below to resolve this issue:

Below you can find a detailed explanation of the above steps:

To get it started, open the System Properties window first. This can either be done through the Run dialog box or the File Explorer.

So, press the Windows + R keyboard shortcut to launch the Run command. Then type sysdm.cpl in the search box and click the OK button.

Alternatively, open the File Explorer using Windows + E keyboard shortcut. Then right-click on This PC and select the Properties option from the context menu.

Inside the System Properties window, select Environment Variables at the bottom of the Advanced tab.

Then click on the New button in the System variables section.

You will now need to type _JAVA_OPTIONS in the Variable name field. To set a variable, you will need to enter –Xmx512M in the Variable value text box. By doing this, the RAM allocation will increase to 512 megabytes.

Once you have made your changes, click OK to save them. Also, click OK on the Environmental window.

2] Run the program as an administrator

When you have finished all the steps above, restart your computer and see if the problem has been resolved now.

That’s it. Hopefully, one of these solutions will work for you!

Источник

FIX: Unable to access JarFile error on Windows 10

matthew

Java browser plug-ins might have gone out of fashion, but there are still many programs that run off Java. You can open Java programs with JarFiles.

However, some Java software users can’t always open JAR programs when the Error: Unable to access JarFile error message pops up. These are a few resolutions for the JarFile error message.

How can I get rid of Unable to access JarFile error?

1. Use the File Viewer Plus 4 tool

Usually, file types are associated with a certain program so you can use them. For instance, pdf files are associated with Adobe Acrobat Reader, so you can open and manage them.

File Viewer can open files of different content types. Moreover, it is capable of opening files of over 400 formats, including audio, video, images, text, and source code.

File Viewer Plus 4

Browser, open, view and edit any file format. This software can open even your JarFiles.

2. Update your Java version

3. Select Java as the default program for JarFiles

Note: Jar file error messages usually pop up when Java isn’t configured as the default software for a Jar file. So selecting Java as the default program for a Jar file might kick-start its program.

4. Select the Show Hidden Files, Folders, and Drives option

Note: The unable to access jar file error message can also pop up when the Show Hidden Files, Folders, and Drives option isn’t selected.

5. Open the Jarfix Software

Jarfix is a lightweight program designed to fix Java programs that aren’t starting. The program fixes Jar filetype associations.

Click jarfix.exe on this webpage to save the software to a folder. Then you can click the jarfix.exe to open the window below and fix the Jar association. That’s all there is to it, and there are no further options to select on the Jarfix window.

JAR5

Those are a few resolutions that might fix the unable to access JarFile error and kick-start your Jar software. For further details on how to launch Jar files in Windows, check out this article.

If you have any other questions, don’t hesitate to leave them in the comments section below.

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Источник

See also: What Is Server Virtualization | How It Works And Its Benefits!

Contents

1 4 Solutions to Solve Java Virtual Machine Launcher Error
- 1.1 Remove Malware on your computer
- 1.2 Uninstalling Java and re-installing
- 1.3 Clearing Computer Memory
- 1.4 Miscellaneous Fix
2 Conclusion

4 Solutions to Solve Java Virtual Machine Launcher Error

Remove Malware on your computer

See also: – [Solved] Failed To Enumerate Objects in the Container

Uninstalling Java and re-installing

Clearing Computer Memory

See also: – Top 4 Best Virtual Machine Applications for Windows 10 – TechWhoop

Miscellaneous Fix

Conclusion

Источник

Как я могу избавиться от Unable to access jarfile error на Windows 10?

Добавить самую последнюю версию Java в Windows
Выберите Java в качестве программы по умолчанию для файлов JAR
Выберите «Показать скрытые файлы, папки и диски».
Откройте программное обеспечение Jarfix

1. Добавьте самую последнюю версию Java в Windows

Сначала нажмите сочетание клавиш Win + R, чтобы открыть команду «Выполнить».
Введите appwiz.cpl в текстовом поле «Выполнить» и нажмите кнопку « ОК» .
Введите «Java» в поле поиска программ поиска, как показано на снимке ниже.

Затем выберите Java, чтобы проверить, какая у вас версия. Версия отображается в нижней части окна и отображается в столбце Версия.
Если у вас не установлена самая последняя версия Java, нажмите кнопку « Удалить» .
Нажмите кнопку Да , чтобы подтвердить.
Откройте эту веб-страницу в вашем браузере.

Нажмите кнопку Free Java Download , чтобы сохранить мастер установки JRE.
После этого может открыться диалоговое окно, из которого можно нажать кнопку « Выполнить» , чтобы запустить установщик JRE. Если нет, откройте папку, в которой вы сохранили мастер установки, щелкните правой кнопкой мыши мастер установки Java и выберите Запуск от имени администратора .
Нажмите кнопку Install в окне мастера установки, чтобы установить Java.

Если вы хотите исправить устаревшие сообщения Java в Windows 10, выполните простые шаги из этого руководства.

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

Откройте проводник и папку, в которой находится файл JAR.
Щелкните правой кнопкой мыши файл JAR и выберите « Открыть с помощью» > « Выбрать программу по умолчанию» > « Выбрать другое приложение», чтобы открыть окно на снимке непосредственно ниже.

Выберите Java, если он указан среди программ по умолчанию.
Если Java отсутствует в списке программ, выберите « Искать другое приложение на этом ПК» .
Затем перейдите в папку Java, выберите « Java» и нажмите кнопку « Открыть» .
Нажмите кнопку ОК в окне Открыть с помощью.
Нажмите на JAR, чтобы запустить его программу.

Не можете изменить стандартные приложения в Windows 10? Взгляните на это руководство и научитесь делать это с легкостью.

3. Выберите параметр Показать скрытые файлы, папки и диски.

Сообщение об ошибке « невозможно получить доступ к jarfile » также может появиться, если не выбран параметр « Показать скрытые файлы, папки и диски» . Чтобы выбрать эту опцию, откройте проводник.
Откройте вкладку «Вид» и нажмите кнопку « Параметры» , чтобы открыть окно, расположенное ниже.

Выберите вкладку Вид, показанный непосредственно ниже.

Выберите параметр « Показывать скрытые файлы, папки и файлы и папки дисков» .
Нажмите кнопку Применить .
Нажмите кнопку ОК , чтобы закрыть окно.

Если вам нужна дополнительная информация о том, как открыть скрытые файлы в Windows 10, ознакомьтесь с этим удобным руководством.

4. Откройте программное обеспечение Jarfix

Если у вас есть другие вопросы, не стесняйтесь оставлять их в разделе комментариев ниже.

СВЯЗАННЫЕ ИСТОРИИ, ЧТОБЫ ПРОВЕРИТЬ:

JAR-файлы не открываются в Windows 10 [FIX]
Как установить .Jar файлы на Windows 10
Как открыть файлы EMZ на ПК с Windows 10

Источник

Changing the default app for JAR files should fix this issue

by Matthew Adams

Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things… read more

Updated on November 17, 2022

Reviewed by
Alex Serban

After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server… read more

The Unable to access the JAR file is a standard error when you don’t have compatible software to open it.
Some users reported that using stable file openers fixed the issue for them.
You can also fix this issue by uninstalling and downloading the latest version of Java.

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Java browser plug-ins might have gone out of fashion, but many programs run off Java. For example, you can open Java programs with JarFiles, among other software for opening JAR files.

However, some Java software users can’t always open JAR programs with the Unable to access JarFile error message popping up. This guide will show you some practical ways to get past this error message.

Why does it say unable to access jar?

The inability to access JarFile on Minecraft or Forge can be caused by mistakes on your path or issues with the software. Below are some of the prevalent causes:

Outdated Java version: If your Java version is obsolete, you cannot access JarFile using the docker container. You need to update Java to the latest version.
Wrong default program: Sometimes, this issue might be because you have not set the default program to open the JarFiles. Choosing Java as the default app for opening JAR files should fix this.
Issues with the JAR file path: If the path to your jar file is incorrect, you can get this error. The solution here is to ensure the path is correct.

How can I fix the unable to access JarFile error?

Before proceeding to the fixes in this guide, try the preliminary troubleshooting steps below:

Add .jar extension to the JAR file name
Beware of spaces in the JAR file path
Add quotes to the JAR file path if it contains space
Move the JAR file to another folder
Use a file opener software

If the fixes above fail to solve the issue, you can now move to the fixes below:

1. Update your Java version

Press the Windows key + R, type appwiz.cpl, and click OK.
Right-click the Java app and select the Uninstall option.
Now, go to the official website to download the latest version of the Java app.

A broken or outdated app can cause the unable to access the JarFile issue. Downloading the latest version of the app should fix the problem.

2. Select Java as the default program for JarFiles

Open File Explorer and the folder that includes your JAR file.
Right-click the file and select Open with, and then Choose another app.
Select Java if it’s listed among the default programs.
If Java isn’t listed among the programs, select the Look for another app on this PC option.
Then browse to the Java bin folder, select Java and press the Open button.

JAR file error messages usually pop up when Java isn’t configured as the default software for a JAR file. This can be the cause of the unable to access JarFile.

Setting Java as the default program should fix the issue here.

Read more about this topic

How to Get to Advanced System Settings on Windows 10
Windows 10 Undoing Changes Made to Your Computer [Fix]
How to Enable TLS 1.0 and 1.1 in Windows 11
Circular Kernel Context Logger 0xc0000035: 6 Easy Fixes
Second GPU not Detected: 3 Methods to get it Working

3. Open the Jarfix Software

Click jarfix.exe on this webpage to save the software to a folder.
Now, open the folder and double-click the jarfix.exe option.
The tool will start and fix issues with your jar file extension.

For further details on installing a JAR file in Windows 10, check our guide to make the process easy.

If you have any other questions, please leave them in the comments section below.

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If your system is chivvied by ‘Java virtual machine launcher’ error messages frequently, you need not worry.

JVM Function

The Java virtual machine is responsible for memory allocation and garbage collection, along with interpretation of byte code to machine code.

The Java runtime environment (JRE) is mandatory to be installed on your computer for certain applications to work properly. The main component of JRE is the Java virtual machine (JVM), which helps run Java applications. A java file, on compilation, produces a ‘.class’ file instead of an executable file. This class file contains Java byte code, which the JVM interprets into machine-readable instructions. JVM is platform-independent, since it provides a machine interface that does not depend on the underlying operating system and hardware architecture.

There may be times that you may get error messages while launching JVM, in situations such as booting the computer, playing games like Minecraft, or opening certain Java-based applications. Here, we have compiled a few solutions that may help you fix Java virtual machine launcher errors on Windows XP, Windows 7, and Windows 8.

Error Message #1: Could not create the Java Virtual Machine.

This error message is commonly encountered while trying to start Java-based games, such as Minecraft.

➦Open the control panel.
➦Go to system.
➦Go to advanced systems properties.
➦Click ‘environment variables’.
➦In system variables, click ‘new’.
➦Put new variable name: _JAVA_OPTIONS
➦Put new variable value: -Xmx512M
➦Click ‘ok’.

-Xmx/s is the configuration parameter that controls the amount of memory Java uses.

Xmx is the maximum heap memory size that can be allocated.
Xms is the minimum heap memory size that can be allocated.

Error Message #2: Error opening registry key.

This error may be encountered while working with Java in command prompt.

➦Go to Windowssystem32 folder.
➦Delete the Java executable files, including java.exe, javaw.exe, and javaws.exe.
➦Reinstall JRE.

Error Message #3: Java Virtual Machine Launcher could not find the main class: program will now exit

➦Click ‘start’ in the main menu.
➦In the search box that appears, type ‘mrt’ and press enter. A windows utility called ‘Microsoft malicious software removal tool’ will get launched.
➦Click ‘next’ and choose ‘full scan’.
➦Reboot your computer after you’ve finished scanning.
➦Click ‘start’ and launch the system configuration utility by typing ‘msconfig’ in the search field.
➦Click the ‘startup’ tab and remove the check mark next to ‘WJView.exe’ and ‘javaw.exe’.
➦Reboot when prompted.

Error Message #4: Unable to access jarfile.

This error may be encountered while trying to open an application.

➦Click ‘start’ and go to ‘default programs’.
➦Select ‘Associate a file type or protocol with a program’.
➦Click on the extension (.jar) to view the program that opens it by default.
➦Click ‘change program’ and select the default program ‘JAVA virtual machine launcher’.
➦Click ‘close’ and check whether the issue is resolved.
➦If not, try uninstalling and reinstalling Java.
➦If the problem still persists, check with the technical support of the application which gives you the error.

If you are still not sure about all this, it would be advisable to hire the services of a qualified computer technician to sort out the problem.

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Источник

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Как я могу избавиться от Unable to access jarfile error на Windows 10?

1. Добавьте самую последнюю версию Java в Windows

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

3. Выберите параметр Показать скрытые файлы, папки и диски.

4. Откройте программное обеспечение Jarfix

Unable to Access JarFile: 3 Ways to Run JAR Files

Changing the default app for JAR files should fix this issue

Why does it say unable to access jar?

How can I fix the unable to access JarFile error?

1. Update your Java version

2. Select Java as the default program for JarFiles

3. Open the Jarfix Software

[Solved] How to Fix Java Virtual Machine Launcher Error

4 Solutions to Solve Java Virtual Machine Launcher Error

Remove Malware on your computer

Uninstalling Java and re-installing

Clearing Computer Memory

Miscellaneous Fix

Conclusion

Java virtual machine launcher ошибка как исправить на windows 10 unable to access jarfile

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

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

Сообщение об ошибке #4: не удалось открыть jarфайл.

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Как исправить ошибку «Невозможно получить доступ к jarfile» в Windows 10

Как я могу избавиться от Unable to access jarfile error на Windows 10?

1. Добавьте самую последнюю версию Java в Windows

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

3. Выберите параметр Показать скрытые файлы, папки и диски.

4. Откройте программное обеспечение Jarfix

Исправлено: Невозможно получить доступ к Jarfile —

Что вызывает ошибку «Невозможно получить доступ к Jarfile»?

Решение 1. Установка последнего обновления Java

Решение 2. Настройка файловой ассоциации по умолчанию

Решение 3. Проверка на наличие вредоносных программ

Решение 4. Проверка документации (для разработчиков)

Fix Java Virtual Machine Launcher Error on Windows 11/10

What is Java in simple words?

What is a Java virtual machine error?

How to fix Java Virtual Machine Launcher Error

1] Add a new system variable for Java

2] Run the program as an administrator

FIX: Unable to access JarFile error on Windows 10

How can I get rid of Unable to access JarFile error?

1. Use the File Viewer Plus 4 tool

File Viewer Plus 4

2. Update your Java version

3. Select Java as the default program for JarFiles

4. Select the Show Hidden Files, Folders, and Drives option

5. Open the Jarfix Software

4 Solutions to Solve Java Virtual Machine Launcher Error

Remove Malware on your computer

Uninstalling Java and re-installing

Clearing Computer Memory

Miscellaneous Fix

Conclusion

Как я могу избавиться от Unable to access jarfile error на Windows 10?

1. Добавьте самую последнюю версию Java в Windows

2. Выберите Java в качестве программы по умолчанию для файлов JAR.

3. Выберите параметр Показать скрытые файлы, папки и диски.

4. Откройте программное обеспечение Jarfix

Why does it say unable to access jar?

How can I fix the unable to access JarFile error?

1. Update your Java version

2. Select Java as the default program for JarFiles

3. Open the Jarfix Software

Newsletter

JVM Function

Error Message #1: Could not create the Java Virtual Machine.

Error Message #2: Error opening registry key.

Error Message #3: Java Virtual Machine Launcher could not find the main class: program will now exit

Error Message #4: Unable to access jarfile.

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