Bug 39272 Java Model Exception when creating a project from scratch
I launched Eclipse 2.1 from a brand new Workspace and from there, created a Java project (called "Works") by pointing Eclipse to the root of my project. The process fails after a short while (whether I press Next or Finish after the first page of the wizard) with a dialog telling me to look at the log. I included the top of the log below (it's about 8k, I can post it in its entirety if there's interest). The error is Java Model Exception: Java Model Status [Works does not exist.] I get the same problem with Eclipse 3.0 M1: I can't create a new project.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
dialog.setMessage(NewWizardMessages.getString("BuildPathsBlock.ChooseOutputFolderDialog.description")); 
		dialog.addFilter(filter);
		dialog.setInput(fWorkspaceRoot);
		dialog.setInitialSelection(initSelection);
		dialog.setSorter(new ResourceSorter(ResourceSorter.NAME));
		
		if (dialog.open() == Window.OK) {
			return (IContainer)dialog.getFirstResult();
		}
		return null;
	}
	
	
	
	private void tabChanged(Widget widget) {
		if (widget instanceof TabItem) {
			TabItem tabItem= (TabItem) widget;
			BuildPathBasePage newPage= (BuildPathBasePage) tabItem.getData();
			if (fCurrPage != null) {
				List selection= fCurrPage.getSelection();
				if (!selection.isEmpty()) {
					newPage.setSelection(selection);
				}
			}
			fCurrPage= newPage;
			fPageIndex= tabItem.getParent().getSelectionIndex();
		}
	}		
}