How to attach Java src jar’s to Eclipse
Go to:
cd /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
Find the src.jar there:
find /Library/Java -name ‘src.jar’
And link whatever you will find in current directory
$ sudo ln -s /Library/Java/JavaVirtualMachines/1.6.0_51-b11-457.jdk/Contents/Home/src.jar .
Sooner or later when doing some bigger system or just by messing with os you will meet that error:
Too many open files
You can solve it quickly by:
vi /etc/sysctl.conf
Append a config directive as follows:
fs.file-max = 200000
Save and close the file. Users need to log out and log back in again to changes take effect or just type the following command:
# sysctl -p
Verify your settings with command:
# cat /proc/sys/fs/file-max
vi /etc/security/limits.conf
Set admin user (or for any other user) soft and hard limits as follows:
admin soft nofile 200000
admin hard nofile 200000
Done