Test for JavaFile.toURI().

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

 library java.io;
 
 import "dart:io";
 import 'java_core.dart' show JavaIOException, CharSequence;
 import 'package:path/path.dart' as pathos;
 
 class JavaSystemIO {
   static Map<String, String> _properties = new Map();
   static String getProperty(String name) {
     {
@@ skipping 66 matching lines @@
     var result = pathos.dirname(_path);
     // "." 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() => pathos.absolute(_path);
+  String getAbsolutePath() {
+    String path = pathos.absolute(_path);
+    path = pathos.normalize(path);
+    return path;
+  }
   String getCanonicalPath() {
     try {
       return _newFile().resolveSymbolicLinksSync();
     } catch (e) {
       throw new JavaIOException('IOException', e);
     }
   }
   JavaFile getAbsoluteFile() => new JavaFile(getAbsolutePath());
   JavaFile getCanonicalFile() => new JavaFile(getCanonicalPath());
   bool exists() {
@@ skipping 28 matching lines @@
     var files = <JavaFile>[];
     var entities = _newDirectory().listSync();
     for (FileSystemEntity entity in entities) {
       files.add(new JavaFile(entity.path));
     }
     return files;
   }
   File _newFile() => new File(_path);
   Directory _newDirectory() => new Directory(_path);
 }