Develop Reference

Code runs but doesn't open when converted to .jar file? [duplicate]

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.

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.

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

[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 "%~dp0\myjar.jar"
Credit goes to this answer for setting me on the right path....

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:\some\dir) - so I used a relative path instead: ../../some/dir/sbt-launch.jar.

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 File\myJar.jar
i had to write
java -jar "C:\Path to File\myJar.jar"

Just came across the same problem trying to make a bad USB...
I tried to run this command in admin cmd
java -jar c:\fw\ducky\duckencode.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.bin
But got this error:
Error: unable to access jarfile c:\fw\ducky\duckencode.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:\fw\ducky\
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:\fw\ducky\duckencode.jar.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.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.

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.

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

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

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

This worked for me.
cd /path/to/the/jar/
java -jar ./Calculator.jar

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.

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

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.

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

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 folder\x.jar -->
java -jar "c:\my folder\x.jar"

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

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 Files\Java\jdk1.xxxxx\bin\java" -jar C:\Users\xxx\Downloads\xxx.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 files\java\jre7 is not a valid JDK while instaling weblogic server?

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%\bin\java -jar myjar.jar
Instead of java 7 version:
java -jar myjar.jar

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.

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

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!

Maybe you have specified the wrong version of your jar.

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

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

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

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.

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

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"

This did not work "Unable to access jarfile"
"C:\Program Files\java\jdk-13+33-jre\bin\javaw.exe" -jar "C:\Program Files\Maxim Integrated Products\1-Wire Drivers x64\ OneWireViewer.jar"
This does work
"C:\Program Files\java\jdk-13+33-jre\bin\javaw.exe" -jar "C:\Program Files\Maxim Integrated Products\1-Wire Drivers x64\OneWireViewer.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.

intellij idea failed to create JVM error code -1

I have intellij-idea installed. Although I have set JAVA_HOME environment variable referring to "C:\Program Files\Java\jdk1.8.0_45" but when I try to run it, I end up with the following error:
failed to create JVM: error code -1. JVM path: "C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.2\jre64\" if you have a 64-bit jdk installed, define a JAVA_HOME variable in Computer> system variables> system settings> environment variables.
Windows 7_ 64-bit

My workaround was to go to C:\Users\{username}\AppData\Roaming\JetBrains\IntelliJIdea2020.3\idea64.exe vmoptions file and delete the whole content. The error disappeared and IntelliJ started normally.

Note that there are 2 .vmoptions files. There is the one in the bin directory and an override in
%HOMEPATH%\IntelliJIdea\config
For me the answer was to remove -Xmx and -Xms options from the override file.

Please check your phpstorm64.exe.vmoptions file located at bin folder and remove option
-XX:+UseG1GC

it is not a JAVA_HOME issue, you no doubt have touched the *.vmoptions files in bin folder. if you have entered the licence sever in the *.vmpotions file, notice that it should be like this "-javaagent:C:\Program Files....." don't forget to include "-javaagent:" at the beginning of the license server ;)

The file may be corrupted after a bad manipulation.
Just copy and paste the idea{64}.exe.vmoptions from
%IntelliJ installation path%/bin to %User IntelliJ data path%/config.
For example :
Copy "C:/Program Files/JetBrains/IntelliJ IDEA 2019.2.3/bin/idea64.exe.vmoptions" and paste into "C:/Users/HP/.IntelliJIdea2019.2/config"

I've been using IntelliJ for some time and this issue popped up sometime ago for me too. The issue is with a "VMOPTIONS" file. C:\Users\UserName\AppData\Roaming\NetBeans Go to this location and inside you'll find a VMOPTIONS file. Delete it. Now run the Application and it should work. This VMOPTIONS file is infact a copy of the original VMOPTION file located else where but which can also override the default VMOPTIONS. So deleting this copy with some invalid options inside fixes the problem.
If a VMOPTIONS file doesn't exist in the above path, Go to this location C:\Program Files\JetBrains\IntelliJ IDEA Community Edition xxxx.x.x\bin and run the idea.bat file. Not the exe file. This should fix any and all other problems and let you open the application with out getting that error.

You might have the JRE_HOME environment variable set in your system. Remove that and try again. It generally overwrites the JAVA_HOME variable.

I am just copy file "phpstorm64.exe.vmoptions" from C:\Program Files\JetBrains\PhpStorm 2019.3.1\bin and paste it(replace) in C:\Users\{{your username}}\.PhpStorm2019.3\config
It works fine for me..

I got such error when adding JAVA_TOOL_OPTIONS in environment variables. Try to rename this variable to JAVA_OPTS restart IDE and rename again to JAVA_TOOL_OPTIONS. Or simply delete JAVA_TOOLS_OPTIONS if it is not required

You can find default vmoptions file of windows 64bit version of it in :
C:\Users{user}\AppData\Roaming\JetBrains\PhpStorm..\phpstorm64.exe.vmoptions
You can reinstall phpstorm as well ,it's quick.

I simply removed JAVA_HOME from system variable then again added and saved.
Restart IntelliJ again. Worked fine for me.

It works fine with Webstorm
JAVA_HOME. Watch this tutorial
Delete .vmoptions file. It contains in:
C:\Program Files\WebStorm 2021.3\bin
C:\Users\%USER%\AppData\Roaming\JetBrains\WebStorm2021.3 OR C:\Users\%USER%\.somewhere

I had added
-T 6C clean install -Dmaven.test.skip=true lines. Then I removed them, program is working now.

try to launch idea64.exe from the cmd and see if it works

Updating Java Breaks Eclipse Running

I just updated Java because I got a notification to do so. Now, whenever I try to run something in Eclipse, I get an error: Unable to locate executable for jre1.8.0_20. From my understanding, I should be able to keep the old installation of Java and just point Eclipse at the jre. Is my understanding incorrect? How do I fix this problem?
java -version returns java version "1.8.0_25"

While the other two answers are technically correct here is slightly more detail.
In your eclipse.ini file (which should be in the same directory as where you installed eclipse) add the lines
-vm
C:/path/to/java/jdk1.8.0_20\jre\bin\javaw.exe
Then save and reopen eclipse

In eclipse.ini file use -vm to point javaw.exe file with entire path, where it is available.

I had the exact same problem. After looking at this answer: Eclipse returns error message "Java was started but returned exit code = 1" the key for me was to move the -vm line above the -vmargs entry in the eclipse.ini and to point it to bin\server\jvm.dll instead of bin\javaw.exe

look in the eclipse.ini file, that's where it specifies the JVM to run with.

As you didn't tell us which version of eclipse are you using, the way that I solve this problem is to
remove the line in eclipse.ini file:
-Dsun.lang.ClassLoader.allowArraySyntax=true
This worked for me (eclipse-jee-luna-R-win32-x86_64.zip).

re install Jdk1.6 in windows 7?

I have installed jdk1.6 in E: drive of windows 7.I developed a simple .java file and try to run it through the command prompt using "javac" but it says javac is not recognized as internal or external command.So i checked just by running java it runs fine .so I thought that i should uninstall that jdk and reinstallit but i am getting windows 1723 error
opened a control panel and tried to remove jdk from there but got this "Error 1723.There is problem with this Windows Installer package.A DLL required for this install to complete could not be run.Contact your support personnel or package vendor"

to be able to run javac from the command line, you need to add the path to javac to the PATH environment variable.

It looks like the 1723 error describes a problem with the installer itself. I would follow the advice from Microsoft Answers and Oracle to fix the installation. A correct install of Java should add the necessary entry on the Windows PATH. Make sure you open a new DOS (or Command) window after installation otherwise the amended PATH might not be picked up.

Probably,you are facing the below issue: https://forums.oracle.com/forums/thread.jspa?threadID=2213081. You can use ccleaner to uninstall all the instance of jdk/jre.The issue is happening due to interrupting in installing/uninstalling.If ccleaer is not solving your problem registry cleaning is the only option as shown on the above link.

You probably have java.exe on your \windows\system32 folder... And since this folder is on the path env var it got confused. Try to delete this/these java*.exe files from \windows\system32 folder.

If you encountered a problem with Java error 1723 when you try to reinstall Java.
It may occur when you delete the Java directory by error
_ Go to your Microsoft Event Viewer you'll see one error line like this
Event viewer
_ Then copy an Java bin directory from an other server to have back the lost dlls in the directory mentioned in the events viewer
_ finally reinstall Java
Hope it helps

I have used Microsoft utility(fix-problems-that-block-programs-from-being-installed-or-removed) to resolve this error it saved me doing manual work and it is safe also :
https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed

Java is not working in my PC

I had installed Java in my PC and it was working perfectly. Suddenly something went wrong and now I m not able to open swing applications and its showing the error 'Java not found'. But I can run the Eclipse IDE which also needed Java to run. So I decide to reinstall the Java, but when I tried to uninstall the Java it shows the Error 1723 - There is a problem with this Windows Installer Package. So I have installed a new JDK in another location and set the PATH. Still I am not able to run the Swing application.
Can anybody help me on this?

How are you running your swing application?
If it's from the command line like java mySwingApp and you're getting java not found then your PATH isn't set properly. Make sure that the java/bin directory is on your PATH not just the top level directory. You can test your PATH by just typing java in a console window - it should print the java help page.
If you're not running from a terminal like above, then you may need to set a JAVA_HOME environment variable which points to your java installation folder. Here's a tutorial on setting JAVA_HOME
Setting JAVA_HOME
Hope this helps,
Will

This is close to jakob's answer, about trying to get your Java install setup correctly again, just with a little more detail.
I had a similar problem on my Windows 7 box where I was trying to uninstall Java and do a clean install of a newer version. Something got messed up and I would get the 1723 error message during the uninstall and attempted reinstall. Here's information about how I was able to fix the problem, and maybe this will help you:
Look at the log files for the uninstall/reinstall. On Windows 7 they can be found at c:\users\username\AppData\Local\Temp\
The java_install.logdidn't show any extra information, but I had several MSI##### log files that contained error messages about the failed uninstall. The message was: Error 1723.There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor. Action UninstallJRE, entry: MSIUninstallJRE, library: C:\Program Files\Java\jre6\bin\regutils.dll
There was indeed no regutils.dll file, and not even the bindirectory was there. So I copied over a regutils.dll file from another computer, ran the uninstaller, and it worked. Then the new clean install of Java also worked.
So take a look at your logfiles and hopefully that will give you more detailed information about the 1723 error.

This usally happens when you delete Java files manually.
If you try to uninstall Java and it fails, it generates a log file.
Should be in C:\Users[Username]\AppData\Local\Temp
Almost at the end the missing file(s) can be found.
Try to copy that file(s) from a working installation to your computer.
Then you should be able to uninstall your Java and install a new version.