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I try to configure the path of the osgi instance and configuration folders in order to start my Eclipse RCP application. To do that I configure the following within the tag in the jnlp file:

<!-- Information usually specified in the config.ini -->
<property name="osgi.instance.area" value="@java.io.tmpdir"/>
<property name="osgi.configuration.area" value="@java.io.tmpdir"/>

Unfortunately "java.io.tmpdir" is interpreted as a literal and not as an environment variable. Configuring the path to user.home works fine, but thats not what I want as my user home is located on a network device and my %TEMP% is located on my local drive c:

In any examples I found the configuration is as the following using user.home:

<!-- Information usually specified in the config.ini -->
<property name="osgi.instance.area" value="@user.home/Application Data/demo"/>
<property name="osgi.configuration.area" 
   value="@user.home/Application Data/demo"/>

I tried it with JDK 1.6.0_27 and 1.6.0_37 on Windows Vista.

I will be thankful for any help as I´m stuck on this issue for a while now.

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"Unfortunately "java.io.tmpdir" is interpreted as a literal and not as an environment variable." I think it is quite fortunate. If you could draw that data into the JNLP at run-time, it would be a security bug. – Andrew Thompson Apr 30 at 13:29
At least it´s possible with the "user.home" environment variable. – user2332631 May 3 at 8:50

1 Answer

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The Eclipse runtime options document which arguments are available and which locations you can address (e.g. osgi.user.area, osgi.install.area...). Have a look at the Locations section. Beware that those locations resolve differently when starting an Eclipse RCP locally or via WebStart.

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