I'm trying to run a java program on windows in VSCODE. When I click the run button at the top it opens the Java Process Console and runs the following command:
$ cmd /C "c:\Users\user\.vscode\extensions\vscjava.vscode-java-debug-0.31.0\scripts\launcher.bat "C:\Program Files\AdoptOpenJDK\jdk-11.0.10.9-hotspot\bin\java.exe" -Dfile.encoding=UTF-8 #C:\Users\jbree\AppData\Local\Temp\cp_7gau2431e54dxprosf092viw9.argfile com.example.restservice.RestServiceApplication "
It then prints out: Command 'cmd' not found, but there are 16 similar ones., and I'm not too sure what to do afterwards.
I just ran into this exact issue! After some debugging, I found out it's because my terminal (in VS Code) was running off of WSL.
Make sure to check which terminal you're using! If you're trying to run Java locally, then you can configure a default shell ie. bash.
Let me know if this helps.
Edit: I also found this, not sure if it will help, but here you go!
https://stackoverflow.com/a/58058378/11060097
your java debugger is using wsl. and most likely your java is installed on windows. not linux on windows. to fix this for me, i changed the settings for java debugging to use the external console. settings->java debugger->externalTerminal . this will then use the "external windows" setting for vscode. which should use cmd.exe (the windows shell, no linux).
This error happens because you probably have wsl has your standard terminal but it's probably configured to launch cmd using a windows path.
WSL won't understand what that windows path is, so you need to change it using a path structure it can understand
So
hit Ctrl+, to hit the Settings screen
type in terminal to see all the terminal settings
You will see an option called Terminal> External:Windows Exec
Change C:\Windows\System32\cmd.exe to /mnt/c/Windows/System32/cmd.exe
I had this error too and came here initially but I managed to figure out it was an incompatible path issue that was the cause.
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.
I have several .jar files that run successfully when opened with Mac's built in 'Jar Launcher' (Version 15.0.1) but when ran from terminal they error out.
Looking online the error messages might be down to the incorrect version of Java being linked to the terminal version, so I'd like to check if the options set for 'Jar Launcher' and the Java used within terminal are the same.
Does there exist any way to do this?
This question is two years old, but as there is no answer to it, I thought I'd put my two cents here since I've had issues myself, and have made some observations.
It seems that the Jar Launcher doesn't necessarily use the same JVM version as the one shown by the command /usr/libexec/java_home: If there is a JRE /Library/Internet Plug-Ins/JavaAppletPlugin.plugin, then the Jar Launcher will use it and ignore anything in /Library/Java/JavaVirtualMachines.
I've solve my problem of version mismatch between the Jar Launcher and the terminal by removing the JRE:
Go to /Library/Internet Plug-Ins.
Remove the JavaAppletPlugin.plugin directory by executing the rm command as a root user or by using the sudo tool.
Go to /Library/PreferencePanes.
Remove JavaControlPanel.prefpane by executing the rm command as a root user or by using the sudo tool.
Source: https://docs.oracle.com/javase/9/install/installation-jdk-and-jre-macos.htm
I was able to compile and run my java code from CMD, however when I try to run the same commands in PS, I am getting error messages. I have read and been told that CMD commands will work in PS, but the CMD commands are not working in PS
Here is the line that I am using to execute my program:
java -classpath .;stanford-corenlp-3.8.0.jar;stanford-corenlp-3.8.0-
javadoc.jar;stanford-corenlp-3.8.0-models.jar;stanford-corenlp-3.8.0-
models.jar Test.TestCoreNLP
I am running the command from the directory where my needed JAR files are located. The error message says...
The command stanford-corenlp-3.8.0-models.jar was not found, but does exist
in the current location. Windows PowerShell does not load commands from the
current If you trust this command, instead type: ".\stanford-corenlp-3.8.0-
models.jar".
Made the change and the code looks like this now.
java -classpath .\;stanford-corenlp-3.8.0.jar;stanford-corenlp-3.8.0-
javadoc.jar;stanford-corenlp-3.8.0-models.jar;stanford-corenlp-3.8.0-
models.jar Test.TestCoreNLP
Still getting the exact same error message. I have also tried going up a directory and no luck. I have looked all over StackOverflow and I have done my research.
Any help would be much appreciated.
Thanks.
Using .\ would work for one file, but since you have a number of files, you should reference the current directory in each one of those files.
java -classpath .\stanford-corenlp-3.8.0.jar;.\stanford-corenlp-3.8.0-javadoc.jar;.\stanford-corenlp-3.8.0-models.jar;.\stanford-corenlp-3.8.0-models.jar .\Test.TestCoreNLP
Java 6 also supports wildcards, as this answer indicates, so you might try simply this.
java -cp ".\*" .\Test.TestCoreNLP
I came here with similar trouble, and what I found is that when running like this:
java -cp .\target\somelib.jar;.\target\myapp-1.0-SNAPSHOT.jar com.ethoca.app.myapp
I would get help info. My discovery is that I need to double-quote my list of classpath, like:
java -cp ".\target\somelib.jar;.\target\myapp-1.0-SNAPSHOT.jar" com.ethoca.app.myapp
I'm simply trying to open a JAR file on my Mac running 10.9.5.
But can't seem to get it open. I have tried litteraly everything, but I have this error code from console:
Class JavaLaunchHelper is implemented in both /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java and /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/jli/./libjli.dylib. One of the two will be used. Which one is undefined.
One guy said that there are conflict between two files. I just want to open it, have not made anything. Developer wont get back to me.
Can some on you guys check out the jar file?
Thanks in advance! Need help :(
OK i had the same problem weeks ago.
Open terminale and check your default java version.
java -version
after this check your java path
which java
if you want to run your program with your java installation edit your PATHvariable.
PATH=/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java:$PATH
export $PATH
then you can run your program for terminal
java -jar ....