TYPO3.Flow

The AOP ProxyClassBuilder produces invalid code when signals are defined in an abstract class.

Steps to reproduce:

AbstractSignalTest.php
 1 <?php
 2 namespace Foo\Bar;
 3 abstract class AbstractSignalTest {
 4 
 5     public function testSignal() {
 6         $this->emitTestSignal();
 7     }
 8 
 9     /**
10      * @signal
11      */
12     public function emitTestSignal() {}
13 }
14 
15 ?>

SignalTest.php
1 <?php
2 namespace Foo\Bar;
3 class SignalTest extends AbstractSignalTest {
4 
5 }
6 ?>

In some controller:
1 $signalTest = new \Foo\Bar\SignalTest();
2 $signalTest->testSignal();

Result:

#1: Notice: Undefined index: emitTestSignal in Development\Cache\Code\FLOW3_Object_Classes\Foo_Bar_AbstractSignalTest.php line 98

The problem is, that the proxy code tries to access $this->FLOW3_AOP_Proxy_targetMethodsAndGroupedAdvices which is declared private.