flexmojos-maven-plugin:7.0.1:test-compile build failure at net.flexmojos.oss.unitestingsupport.TestApplication - flexmojos

Question

I have a project with Flexmojos 4.0-beta-7 and multiple modules.
There is an artifact with swc packaging and some tests.
During maven install phase it creates the following MXML file
/target/test-classes/TestRunner.mxml
<?xml version="1.0" encoding="utf-8"?>
<unitestingsupport:TestApplication
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:unitestingsupport="net.flexmojos.oss.unitestingsupport.*"
layout="absolute"
initialize="init()"
port="59896"
controlPort="59895"
>
<mx:Script>
<![CDATA[
import projekt.service.command.CommandServiceTest; CommandServiceTest;
import projekt.service.command.impl.CommandTest; CommandTest;
import projekt.service.console.ConsoleLogTargetTest; ConsoleLogTargetTest;
import projekt.service.dump.dumper.ServiceDumperTest; ServiceDumperTest;
private function init():void {
addTest( CommandServiceTest);
addTest( CommandTest);
addTest( ConsoleLogTargetTest);
addTest( ServiceDumperTest);
}
]]>
</mx:Script>
</unitestingsupport:TestApplication>
So the phase on Flexmojos 4.0-beta-7 runs fine, producing the following output.
[exec] [INFO] --- flexmojos-maven-plugin:4.0-beta-7:test-compile (default-test-compile) # Projekt ---
[exec] [INFO] Flexmojos 4.0-beta-7
[exec] [INFO] Apache License - Version 2.0 (NO WARRANTY) - See COPYRIGHT file
[exec] [INFO] Compiling test class: [projekt.service.command.CommandServiceTest, projekt.service.command.impl.CommandTest, projekt.service.console.ConsoleLogTargetTest, projekt.service.dump.dumper.ServiceDumperTest]
[exec] Writing configuration dump to C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner-configs.xml
[exec] C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner.swf (1181091 bytes)
[exec] [INFO]
[exec] [INFO] --- flexmojos-maven-plugin:4.0-beta-7:test-run (default-test-run) # Projekt ---
But then I have had to upgrade it to Flexmojos 7.0.1 because of FLEXMOJOS-886
https://flexmojos.atlassian.net/browse/FLEXMOJOS-886
Unfortunately, it breaks the phase, producing the following output.
Initially it begins the same way
[exec] [INFO] --- flexmojos-maven-plugin:7.0.1:test-compile (default-test-compile) # Projekt ---
[exec] [INFO] Flexmojos 7.0.1
[exec] [INFO] GPL License - Version 2.0 (NO WARRANTY) - See COPYRIGHT file
[exec] [INFO] Compiling test class: [projekt.service.command.CommandServiceTest, projekt.service.command.impl.CommandTest, projekt.service.console.ConsoleLogTargetTest, projekt.service.dump.dumper.ServiceDumperTest]
But then it fails with the following messages.
Writing configuration dump to C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner-configs.xml
C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner.mxml(30): Error: Cannot resolve attribute 'layout' for component type net.flexmojos.oss.unitestingsupport.TestApplication.
C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner.mxml(30): Error: Cannot resolve attribute 'initialize' for component type net.flexmojos.oss.unitestingsupport.TestApplication.
C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner.mxml(30): Error: Cannot resolve attribute 'port' for component type net.flexmojos.oss.unitestingsupport.TestApplication.
C:\Users\Uzer\Documents\Projekt\target\test-classes\TestRunner.mxml(30): Error: Cannot resolve attribute 'controlPort' for component type net.flexmojos.oss.unitestingsupport.TestApplication.
How to fix it and make it work with Flexmojos 7.0.1, any ideas?