Change widgets compiler logLevel using Eclipse Addon

Hi all,
using the vaadin addon button “Compile vaadin widgets (Ctrl+6)”, i get this log:

Compiling module com.example.TestvaadinWidgetset
   Validating units:
      Ignored 1 unit with compilation errors in first pass.
Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.

How can i set the parameter -logLevel TRACE ?

Currently extra parameters are not supported by the Eclipse plug-in (

As a workaround, you can copy the parameters to the widgetset compiler class from the verbose compiler output and create a Java launch for it. You don’t need to copy the classpath parameters if you otherwise configure the classpath correctly for the launch.

thank you,
it works