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/WizardFileSystemResourceImportPage1.java
* @param path a String not yet formatted for java.io.File compatability
     */
    private File getSourceDirectory(String path) {
        File sourceDirectory = new File(getSourceDirectoryName(path));
        if (!sourceDirectory.exists() || !sourceDirectory.isDirectory()) {
            return null;
        }
        return sourceDirectory;
    }
    /**
     *	Answer the directory name specified as being the import source.
     *	Note that if it ends with a separator then the separator is first
     *	removed so that java treats it as a proper directory
     */
    private String getSourceDirectoryName() {
        return getSourceDirectoryName(this.sourceNameField.getText());
    }
    /**
     *	Answer the directory name specified as being the import source.
     *	Note that if it ends with a separator then the separator is first
     *	removed so that java treats it as a proper directory
     */
    private String getSourceDirectoryName(String sourceName) {
        IPath result = new Path(sourceName.trim());
        if (result.getDevice() != null && result.segmentCount() == 0) 
            result = result.addTrailingSeparator();
        else
            result = result.removeTrailingSeparator();
        return result.toOSString();
    }