Porting Java applications to OSv

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tzach edited this page Nov 9, 2014 · 8 revisions

The easiest way to Port a Java application to OSv is using Capstan.

You can use the following example as a starting point.

Using a ready Java enable OSv VM

Build JVM & CLI image first

make image=java,cli

Run OSv instance

./scripts/run.py -n

Upload new .jar file

curl -X POST http://192.168.122.89:8000/file/js.jar [email protected]

Change cmdline to run .jar file

curl -X POST -d cmdline="java.so -jar js.jar" \
http://192.168.122.89:8000/os/cmdline

Reboot OSv instance

curl -X POST http://192.168.122.89:8000/os/reboot


### Troubleshooting
In case your Java application goes outside the JVM and uses system calls, it might fail on a missing symbol or a system call.
We will publish a short guide on how to solve these issues soon.