intellij-sdk-code-samples/simple_language_plugin/src/test/resources/FoldingTestData.java

public class Test {
    public static void main(String[] args)<fold text=' { '> {
        </fold>System.out.println("<fold text='http://en.wikipedia.org/'>simple:website</fold>");<fold text=' }'>
    }</fold>
    public static void main1(String[] args)<fold text=' { '> {
        </fold>System.out.println("<fold text='This is the value that could be looked up with the key \"key with spaces\".'>simple:key with spaces</fold>");<fold text=' }'>
    }</fold>
    public static void main2(String[] args)<fold text=' { '> {
        </fold>System.out.println("<fold text='Welcome to \n          Wikipedia!'>simple:message</fold>");<fold text=' }'>
    }</fold>
}