Question: I am playing with some sensors which are made to be used on cell phone's headphone jack. Using sensors on iPhone or specific Android phones (Galaxy III for example) is no problem, but on other Android phones (for example Nexus S, Nexus, ...) output voltage is to low... 

Is it by any chance possible to control output voltage using software solution?

Answer: 
On other approach is to create a symbolic link to you java with the name of you application. ps will use the name of the symbolic link.

ln -s Java\_Process\_1 /usr/bin/java

Then start you application with

Java\_Process\_1 -jar ......
You can't. A process needs to exist before **it itself** can modify its argv[0].