Cannot create and save .aj files in eclipse with AJDT plugin

Question

recently I started learning the wonders of AspectJ (http://www.eclipse.org/aspectj/doc/released/faq.php) and decided to use it on a program.

To start I downloaded the lates stable version of aspectJ (http://www.eclipse.org/aspectj/downloads.php#stable_release). Then I decided to install AspectJ's plugin for eclipse (http://www.eclipse.org/ajdt/whatsnew220/).

I am using eclipse (Version: 3.8.0 Build id: I20120502-2000) and currently I don't have any other plugins installed.

However, when I try to create a .aj file or to save changes in one I always get this error:

Save Failed
org.eclipse.ajdt.core.javaelements.AJCompilationUnit.openWhenClosed(Ljava/lang/Object;Lorg/eclipse/core/runtime/IProgressMonitor;)Ljava/lang/Object;

What is wrong with my installation and what can I do to fix it?

Answer 1

Well, apparently the eclipse version of the Ubuntu repos (Version: 3.8.0 Build id: I20120502-2000) works terribly wrong with the given plugin for the version. Not even the eclipse forums managed to answer this correctly.

I updated to eclipse 4.2 and installed the plugin for version 4.2 and now it seems to work properly.

Guess it serves to show me a lesson: Always go to the source.