Ubuntu – How to reenable opening jar files by double clicking on them

javanautilus

How can I make "double click to run" the default behaviour of a jar-file on Nautilus?
There is no "Open with OpenJDK Java 7 Runtime" on the "Open with" tab under Properties.

Best Answer

You can try the following:

If you have OpenJDK Java 7 Runtime installed in your system, then you should have a file named openjdk-7-java.desktop in the folder /usr/share/applications/

Check if you have the .desktop file.

Go to the terminal and type:

cd /usr/share/applications

ls -l openjdk-7-java.desktop
If the result is:

-rw-r--r-- 1 root root 367 Oct 24 22:29 openjdk-7-java.desktop
Then (to associate OpenJDK Java 7 Runtime to the java files) you can edit the file defaults.list also in the folder /usr/share/applications/ .
In the terminal type:

sudo gedit /usr/share/applications/defaults.list
Search for application/x-jar and application/x-java-archive in the defualts.list, and change the .desktop file to the openjdk-7-java.desktop and save the changes.

Screenshot of gedit /usr/share/applications/defaults.list

Now the java files should be open with Open JDK 7 by default. To double-click and run, make sure the file has execute permissions.

You can set the permissions in the terminal with: chmod 755 file.jar or right click in the file, permissions tab and click in "Allow executing file as a program"

File properties

Finally double-click in the file to run it.

Hope this will helpful!

Regards.

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Ubuntu – How to run an executable file through JRE by default

Ubuntu Tweaks is a useful program that can manage this I think. Install and run it, then go to Admins > File Type Manager, select Category 'All' then find 'Java archive'. Edit that, and if it is not on the list, use the Add button, and select it, or use the 'Custom command' option at the bottom.

Ubuntu – Problem running jar from gui in 15.04

For some reason the desktop file for OpenJDK is not installed, even though this file is listed.

$ apt-file list openjdk-8-jre | grep desktop        
openjdk-8-jre: /usr/share/applications/openjdk-8-java.desktop
openjdk-8-jre: /usr/share/applications/openjdk-8-policytool.desktop

$ ls -l /usr/share/applications/openjdk-8-java.desktop
ls: cannot access /usr/share/applications/openjdk-8-java.desktop: No such file or directory

$ dpkg --get-selections | grep openjdk-8
openjdk-8-jre:amd64             install

But you can also use Oracle Java(TM):

Install Oracle Java(TM) with this commands and you have an entry in open with:

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

To select your default Java, use the following command.

sudo update-alternatives --config java

But this has no influence on the menu item "Open with"

Best Answer

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Ubuntu – How to run an executable file through JRE by default

Ubuntu – Problem running jar from gui in 15.04

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