The problem is
The program 'jps' can be found in the following packages:
Try: sudo apt-get install <selected package>
But I have Sun JDK and cant install it like this. What are other ways to use jps?
You can put JPS into your path or create an alias. The JPS executable can be found under $JAVA_HOME/bin/jps.
The alias for example could be:
Alternate for JPS, you can use ps with grep:
ps aux | grep java
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