java - ProGuard:ClassCastException

Question

当我混淆我的 Java 代码时(在我使用 ProGuard 混淆之前工作正常)，我遇到了这个恼人的 ClassCastException。

   java.lang.ClassCastException: com.google.gson.internal.StringMap cannot be cast to net.minecraft.launcher.profile.Profile
        at java.lang.ClassCastException: com.google.gson.internal.StringMap cannot be cast to net.minecraft.launcher.profile.Profile
at net.minecraft.launcher.profile.ProfileManager.getSelectedProfile(SourceFile:117)
at net.minecraft.launcher.g.run(SourceFile:184)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

ClastCastException 错误指向这段代码，在这里(粗体行是确切的行):

public Profile getSelectedProfile()
{
    if ((this.selectedProfile == null) || (!this.profiles.containsKey(this.selectedProfile))) {
        if (this.profiles.get("Default") != null)
        {
            this.selectedProfile = "Default";
        }
        else if (this.profiles.size() > 0)
        {
            this.selectedProfile = ((Profile)this.profiles.values().iterator().next()).getName();
        }
        else
        {
            this.selectedProfile = "Default";
            this.profiles.put("Default", new Profile(this.selectedProfile));
        }
    }
    *Profile profile = this.profiles.get(this.selectedProfile);*
    return profile;
}

整个类文件(未混淆):http://pastebin.com/Jgh4x1SSRawProfileList 类文件(未混淆):http://pastebin.com/vPxFpYfCProGuard 版本:5.2.1

配置文件声明:

private final Map<String, Profile> profiles = new HashMap<String, Profile>();

Answer 1

您的类(class)看起来不错。 ClassCastException 意味着 Gson 不知道一个字段应该被序列化为 Profile。

确保您的 proguard.cfg 包含所有 these rules .