title: JUnit Rule TemporaryFolder
body: <p>I'm creating a <code>TemporaryFolder</code> using the <code>@Rule</code> annotation in JUnit 4.7. I've tried to create a new folder that is a child of the temp folder using <code>tempFolder.newFolder("someFolder")</code> in the <code>@Before</code> (setup) method of my test. It seems as though the temporary folder gets initialized after the setup method runs, meaning I can't use the temporary folder in the setup method. Is this correct (and predictable) behavior?</p>