error=24, Too many open files

Many users have experience in getting this error when building with maven.

The way to over come this problem is to increase the file limit of the OS.

First, in order to set this options automatically you have to edit the etc/security/limits.conf file.

$sudo gedit /etc/security/limits.conf    

with the above command you can open the "limits.conf" file with gedit.
We need to set the nofile option meaning maximum number of open files.If you want to change the number of files of user, you should add this line in the limits.conf file.

Lets say our user name is "foo"

Then the entry should be

foo  soft  nofile 9000

foo  hard  nofile 65000

If you want to set the nofile only for superuser you just write root instead of user.

root soft  nofile 9000

root hard  nofile 65000

Now after rebooting you can see in the terminal with ulimit -a the change.