On upgrading to lion, I did hit a snag trying to compile my java project in Eclipse. My JRE link has a red x next to it. YIKES. I see that classes.jar, ui.jar, and so on, are located in System/Library/Java/..., which seems to be a good link. But there is one bad boy, "Java/JavaRuntimeSupport.jar", which is in "/System/Library/Frameworks/JavaVM.framework/Frameworks/JavaRuntimeSupport.framework/Resources". This folder actually exists on the lion installation, but it does not contain a folder or link called "Java".
My guess is that at some point I must have fiddled with my JRE Library preference and now my link is stale. I fixed this problem like so:
1) Create a new workspace, and a fresh java project. Under Java/installed JREs preference, observe the location "System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home", which is good. Now go back to your workspace, delete the old JRE preference, and add this one.
All better. What a releif !!!
Frank Rimlinger _______________________________________________
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