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
return ensureZipSourceIsValid();
    }
    
    /**
     * The Finish button was pressed.  Try to do the required work now and answer
     * a boolean indicating success.  If <code>false</code> is returned then the
     * wizard will not close.
     *
     * @return boolean
     */
    public boolean finish() {
        if (!super.finish())
            return false;
        ArchiveFileManipulations.clearProviderCache(getContainer().getShell());
        return true;
    }
    /**
     * Returns a content provider for <code>FileSystemElement</code>s that returns 
     * only files as children.
     */
    protected ITreeContentProvider getFileProvider() {
        return new WorkbenchContentProvider() {
            public Object[] getChildren(Object o) {
                if (o instanceof MinimizedFileSystemElement) {
                    MinimizedFileSystemElement element = (MinimizedFileSystemElement) o;
                    AdaptableList l;
                    if(zipCurrentProvider != null) {
                    	l = element.getFiles(zipCurrentProvider);
                    } else {
                    	l = element.getFiles(tarCurrentProvider);