On Mac OSX running the latest JDK, my IntelliJ 9.0.3 pops up these incredibly annoying and persistent windows:
This stuff compiles and runs fine, the JDK is definitely operational on this machine. It should be a java.util.string, not some other apache string. what is this supposed to be, and how do i get rid of it? Thanks!
You can ignore certain packages & classes from the import-popup.
See the answer here: http://stackoverflow.com/questions/1725812/limiting-intellij-idea-import-suggestions-on-completion
My guess is that you have not configured the Java SDK that your project is using.
File -> Project Structure -> Project -> Project SDK, choose one, make sure it doesn't show in red.