#StackBounty: #debian #performance #java Bad performance with Java

Bounty: 50

I have a computer that was running Windows with a lot of big programas (like Adobe Fireworks, and many other stuff) and the computer performance was really good. I decided to format my computer (I didn’t need all this programs because this computer had a different owner) and I installed Debian 8 Jessie (stable).

But since the first fresh installation, every program that needs Java to run (like NetBeans, Google Chrome, Atom (advanced text editor) or anyone) it starts consuming CPU progressively (checked via top command) until I have to reboot manually through the button (the computer is unusable, I can’t open the menu and click on Power off).

I tried using different versions of Java (7 and 8) but nothing worked. Java 7 is installed through the official repositories and version-8 through Oracle downloads official site.

Any word of advice?

EDIT 1: Java version information

lrwxrwxrwx   1 root root    24 May  6  2014 default-java -> java-1.7.0-openjdk-amd64
lrwxrwxrwx   1 root root    20 Nov  7 01:58 java-1.7.0-openjdk-amd64 -> java-7-openjdk-amd64
-rw-r--r--   1 root root  2439 Feb  7 21:22 .java-1.7.0-openjdk-amd64.jinfo
drwxr-xr-x   5 root root  4096 Jan 11 18:54 java-6-openjdk-amd64
drwxr-xr-x   8 root root  4096 Feb 21 11:10 java-7-openjdk-amd64
drwxr-xr-x   9 root root  4096 Feb  3 08:56 jdk-8-oracle-x64
-rw-r--r--   1 root root  2531 Feb  2 10:16 .jdk-8-oracle-x64.jinfo
drwxr-xr-x   2 root root  4096 Feb 21 11:12 openjdk-7

Edit 2: Java performance
Also I’ve noticed via top command that Java process also consumes a lot of CPU (more than 200%).

Get this bounty!!!