Run applications ( .jar files) by bash on linux

Question

On linux:
I have a swing application and its jar file. I created an executable file using bash script to run the jar file
#!/bin/bash
java -jar myapp.jar
this runs in console normally but when i clicked the executable file, the application runs too but immediately closes. I think the problem is that this can't recognize the swing-layout.jar (swing library) so that the swing components (JFrame,Jbutton) cannot be showed!
There must be a way for the executable file to recognize the libraries (swing, layouts) for the application by using bash script ?

Answer 1

There can be number of reasons for that. I suggest you following way:
1. Modify your script in following way:
#!/bin/bash
java -jar myapp.jar 2>/tmp/log.err 1>/tmp/log.out
After unsuccesful execution check content of /tmp/log.* files and see details of the error.
Often such errors are caused by environment. May be you just don have java in your PATH .. May
be DISPLAY is not set .. I don't know.
To workaround env issue you need to dump environmentin from console:
declare -x >env.sh
After that include update your .sh script in following way and see the difference:
#!/bin/bash
. env.sh
java -jar myapp.jar 2>/tmp/log.err 1>/tmp/log.out