Bug 108143 [Import/Export] error message does not go away when resources are selected for import
The patch for 97523 should have included code to prevent this problem, but it was overlooked. -Import an Archive or from the File System -Ensure the the Into Folder: field is empty -Uncheck all the resources to import (notice an error message appears) then check it again BUG: the error message does not go away
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardArchiveFileResourceImportPage1.java
if (sourceFile == null) {
            
            this.zipCurrentProvider = null;
            this.tarCurrentProvider = null;
            return null;
        }
        ZipLeveledStructureProvider provider = ArchiveFileManipulations
				.getZipStructureProvider(sourceFile, getContainer().getShell());
        this.zipCurrentProvider = provider;
        this.tarCurrentProvider = null;
        return selectFiles(provider.getRoot(), provider);
    }
    /**
     * Returns a content provider for <code>FileSystemElement</code>s that returns 
     * only folders as children.
     */
    protected ITreeContentProvider getFolderProvider() {
        return new WorkbenchContentProvider() {
            public Object[] getChildren(Object o) {
                if (o instanceof MinimizedFileSystemElement) {
                    MinimizedFileSystemElement element = (MinimizedFileSystemElement) o;
                    AdaptableList l;
                    if(zipCurrentProvider != null) {
                    	l = element.getFolders(zipCurrentProvider);
                    } else {
                    	l = element.getFolders(tarCurrentProvider);
                    }
                    return l.getChildren(element);
                }
                return new Object[0];