Bug 148551 [Import/Export] Import File System Problem
When going to import some files if you choose General, then Filesystem. As you browse to the folder where you want to import items from and select it, the option to "Select All" is not available until you either select the folder or a file in the folder.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceImportPage1.java
return false;
            }
        };
    }
    /**
     * Returns a File object representing the currently-named source directory iff
     * it exists as a valid directory, or <code>null</code> otherwise.
     */
    protected File getSourceDirectory() {
        return getSourceDirectory(this.sourceNameField.getText());
    }
    /**
     * Returns a File object representing the currently-named source directory iff
     * it exists as a valid directory, or <code>null</code> otherwise.
     *
     * @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() {