Test for JavaFile.toURI().

editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart

Index: editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart
diff --git a/editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart b/editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart
index 245bd04fdc3be12ecff0c30f4e4a89a9c184d778..b2c95e1e9040fe67ca2b8994c7e457c636547da1 100644
--- a/editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart
+++ b/editor/util/plugins/com.google.dart.java2dart/resources/java_io.dart
@@ -84,7 +84,11 @@ class JavaFile {
     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();