}
protected void setupRootModel(final String testDir, final VirtualFile[] sourceDir, final String jdkName) {
VirtualFile projectDir = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(new File(testDir));
assertNotNull(projectDir);
sourceDir[0] = projectDir.findChild("src");
if (sourceDir[0] == null) {
sourceDir[0] = projectDir;
}
VirtualFile ext_src = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(new File(testDir + "/ext_src"));
final ModuleRootManager rootManager = ModuleRootManager.getInstance(myModule);