void () { File jar = IoTestUtil.createTestJar(tempDir.newFile("..p.jar")); VirtualFile vf = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(jar); VirtualFile jarRoot = JarFileSystem.getInstance().getRootByLocal(vf); assertNotNull(jarRoot); assertNotNull(jarRoot.findFileByRelativePath(JarFile.MANIFEST_NAME)); }