What causes "Unable to access jarfile" error?

java jar executable-jar
Joseph Smith picture Joseph Smith · Aug 14, 2012 · Viewed 674.7k times · Source

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:

  1. Right click on project folder (Calculator)
  2. Select
  3. Click on Java Folder and select "Exectuable Jar File", then select next
  4. Launch Configuration: Main - Calculator
  5. Create Export Destination
  6. Hit "Finish" and profit! Well, not really.

Answer

Vinay Kadalagi picture Vinay Kadalagi · Sep 16, 2014

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.

Related questions

Running JAR file on Windows

I have a JAR file named helloworld.jar. In order to run it, I'm executing the following command in a command-line window: java -jar helloworld.jar This works fine, but how do I execute it with double-click instead? Do I …

Read More
How to get the path of a running JAR file?

My code runs inside a JAR file, say foo.jar, and I need to know, in the code, in which folder the running foo.jar is. So, if foo.jar is in C:\FOO\, I want to get that path …

Read More
How to run a class from Jar which is not the Main-Class in its Manifest file

I have a JAR with 4 classes, each one has Main method. I want to be able to run each one of those as per the need. I am trying to run it from command-line on Linux box. E.g. The …

Read More