Java - How to get permission in Java Web Start

Question

Hi managed to create the jar and .jnlp files for my Java application but running into trouble when it runs. Launches okay with Java Web Start but I think I need to do someth

Answer 1

Add the following to your JNLP:

<security>
  <all-permissions/>
</security>

This will pop a dialogue asking the user the give the necessary permission to your app.

Answer 2

If you want access to the file system you need to change your JNLP file to include:

<security><all-permissions/></security>

This requires you to also sign your jar files.

Another option is to package the file inside the jar as a resource and you don't have to do all that.

Answer 3

You need to sign your JNLP file and configure the <security> element, as discussed here.