I have installed "AspectJ Development Tools" in eclipse. But when I want to open a ".aj" file, I encounter the following error:
class org.eclipse.ajdt.core.javaelements.AJCompilationUnit tried to access private field org.eclipse.jdt.internal.core.JavaElement.parent (org.eclipse.ajdt.core.javaelements.AJCompilationUnit is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6c3627c; org.eclipse.jdt.internal.core.JavaElement is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @4faaff61)
I saw this post which had a similar problem, but I really didn't get how it was solved. Could any one help me as I am new in Eclipse.
Thanks in advance
The AspectJ read-me for IDE setup explains how to install AJDT from a custom update site (not from the Eclipse Marketplace). The one I built for 22.03 should still work on 22.09.