'An internal error occurred during: "Initializing Java Tooling". Could not initialize class org.eclipse.jdt.core.JavaConventions?

An internal error occurred during: "Initializing Java Tooling". Could not initialize class org.eclipse.jdt.core.JavaConventions After downloading AspectJ development Tools in Eclipse. I am using spring boot.

I don't know what's the problem.



Solution 1:[1]

Found the answer: turns out to be a bug that AspectJ Development Tools from the marketplace not up to date with the Eclipse 4.21 https://bugs.eclipse.org/bugs/show_bug.cgi?id=575897#c10

Sources

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Source: Stack Overflow

Solution Source
Solution 1 advancing