This change was tested with maven 3.0.2.
No more problem of blank/empty screen with this sdk : 4.5.0.18623.
In addition, there is one JAR (AIR development tools) that is packaged with the Flex SDK but is not open source.
Because of this, flexMojos cannot host this artifact. To build from source, you will need to install this artifact into your own private repo:
>mvn install:install-file -DgroupId=com.adobe.flex -DartifactId=adt -Dversion=4.5.0.18623 -Dpackaging=jar -Dfile=adt.jar
This JAR is bundled with the Flex SDK, which is freely available from Adobe’s website:
http://opensource.adobe.com/wiki/display/flexsdk/Downloads