Basic dart^2 analyzer tests running.

pkg/analyzer_experimental/lib/src/generated/java_io.dart

 library java.io;
 
 import "dart:io";
 
 class JavaSystemIO {
   static Map<String, String> _properties = new Map();
   static String getProperty(String name) {
     {
       String value = _properties[name];
       if (value != null) {
@@ skipping 54 matching lines @@
   JavaFile.relative(JavaFile base, String child) {
     this._path = base._path.join(new Path(child));
   }
   JavaFile.fromUri(Uri uri) : this(uri.path);
   int get hashCode => _path.hashCode;
   bool operator ==(other) {
     return other is JavaFile && other._path.toNativePath() == _path.toNativePath();
   }
   String getPath() => _path.toNativePath();
   String getName() => _path.filename;
-  String getParent() => _path.directoryPath.toNativePath();
-  JavaFile getParentFile() => new JavaFile(getParent());
+  String getParent() {
+    var result = _path.directoryPath.toNativePath();
+    // "." or  "/" or  "C:\"
+    if (result.length < 4) return null;
+    return result;
+  }
+  JavaFile getParentFile() {
+    var parent = getParent();
+    if (parent == null) return null;
+    return new JavaFile(parent);
+  }
   String getAbsolutePath() => _path.canonicalize().toNativePath();
   String getCanonicalPath() => _path.canonicalize().toNativePath();
   JavaFile getAbsoluteFile() => new JavaFile(getAbsolutePath());
   JavaFile getCanonicalFile() => new JavaFile(getCanonicalPath());
   bool exists() {
     if (_newFile().existsSync()) {
       return true;
     }
     if (_newDirectory().existsSync()) {
       return true;
@@ skipping 10 matching lines @@
     List<JavaFile> files = [];
     List<FileSystemEntity> entities = _newDirectory().listSync();
     for (FileSystemEntity entity in entities) {
       files.add(new JavaFile(entity.path));
     }
     return files;
   }
   File _newFile() => new File.fromPath(_path);
   Directory _newDirectory() => new Directory.fromPath(_path);
 }