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The little red ‘x’ on my Java class files in the project explorer (or package explorer) are missing. They were there…now they are gone.
This has happened before and usually a project clean, rebuild will do the trick. Also I unchecked the box that says abort build if build path error occurs.
Any ideas?
Edit: I am using the Maven M2Eclipse plugin.
I turns out that in my particular case, I have a multi-module maven project. Disabling support for nested modules and then re-enabling support for nested modules did the trick. Apparently I needed to give m2eclipse a kick in the pants. What convinced me to do it was the fact that it was only Java Errors and Java Tasks that were the only problem markers not appearing — and the Java Builder was missing from the list of builders.