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我想重命名圖像文件播放框架的公共/圖像文件夾。我試圖使用play.getFile（）和viirtualFile類，不管我使用什麼，我最終以下例外。 請讓我知道如果我失去了一些東西。重命名播放框架中的圖像文件
VirtualFile vf = VirtualFile.fromRelativePath("path to public/images/old file name.jpg");
File file = vf.getRealFile();
file.renameTo(new File("path to public/images/new file name.jpg");
錯誤：
play.exceptions.UnexpectedException: While applying [email protected] on controllers.Admin
at play.plugins.PluginCollection.enhance(PluginCollection.java:556)
at play.classloading.ApplicationClasses$ApplicationClass.enhance(ApplicationClasses.java:235)
at play.classloading.ApplicationClassloader.loadApplicationClass(ApplicationClassloader.java:167)
at play.classloading.ApplicationClassloader.getAllClasses(ApplicationClassloader.java:431)
at play.Play.start(Play.java:516)
at play.Play.detectChanges(Play.java:630)
at play.Invoker$Invocation.init(Invoker.java:198)
at Invocation.HTTP Request(Play!)
Caused by: play.exceptions.UnexpectedException: While applying class play.classloading.enhancers.ContinuationEnhancer on controllers.Admin
at play.CorePlugin.enhance(CorePlugin.java:302)
at play.plugins.PluginCollection.enhance(PluginCollection.java:551)
... 7 more