使用proguard后，.jar中的InvalidClassCastException
[英]InvalidClassCastException in .jar after using proguard
问题描述
I am using eclipse to develop an android app. 
我正在使用eclipse开发一个Android应用程序。 When I press Run(the green triangle), the app works fine. 当我按运行（绿色三角形）时，该应用程序运行正常。 But , I enabled proguard, and the app crashes. 但是，我启用了proguard，应用程序崩溃了。 I am using the default proguard-android.txt which is present in sdk/tools/proguard. 我正在使用sdk / tools / proguard中存在的默认proguard-android.txt。
I have a jar called Software.jar , which has a few classes. 我有一个名为Software.jar的jar，其中包含几个类。 One of them (Data) is a serializable class. 其中之一（数据）是可序列化的类。 (with serialversionUID=112358L) . (with serialversionUID=112358L) 。 This is (probably) the part that causes the error. （可能）这是导致错误的部分。
This is the error log(i dont know why, but it is showing in yellow as a warning): 这是错误日志（我不知道为什么，但是以黄色显示为警告）：
07-22 15:29:46.429: W/System.err(2051): java.io.InvalidClassException: software.Data;
and these are the red lines(tag error) 这些是红线（标记错误）
07-22 15:29:46.465: E/AndroidRuntime(2051): FATAL EXCEPTION: Thread-161 07-22 15:29:46.465: E/AndroidRuntime(2051): java.lang.NullPointerException 07-22 15:29:46.465: E/AndroidRuntime(2051): at software.Gen_Phy.a(Unknown Source) 07-22 15:29:46.465: E/AndroidRuntime(2051): at software.Gen_Phy.a(Unknown Source) 07-22 15:29:46.465: E/AndroidRuntime(2051): at software.Gen_Phy.(Unknown Source) 07-22 15:29:46.465: E/AndroidRuntime(2051): at com.mainpackage.FullGenPhysics.a(Unknown Source) 07-22 15:29:46.465: E/AndroidRuntime(2051): at com.mainpackage.de.run(Unknown Source) 07-22 15:29:46.465: W/ActivityManager(333): Force finishing activity com.mainpackage/.FullGenPhysics 07-22 15:29:46.525: E/SocketStream(112): readFully was waiting for 403440 bytes, got 49152 07-22 15:29:46.525: E/SocketStream(112): readFully was waiting for 354288 bytes, got 16384 07-22 15:29:46.529: E/SocketStream(112): readFully was waiting for 337904 bytes, got 1624 07-22 15:29:46.529: E/SocketStream(112): readFully wa
The funny thing is, that I have a system.out in one of the classes of software.jar. 有趣的是，我在software.jar之一类中有一个system.out。 That is getting printed. 那是打印。
I have tried adding -libraryjars C:\\Users\\Harsh\\git\\marks++\\Marks++\\Software.jar as well as 我尝试添加-libraryjars C:\\Users\\Harsh\\git\\marks++\\Marks++\\Software.jar以及
-keep class Software.**
to the already mentioned .txt file 到已经提到的.txt文件
Where am I going wrong ? 我要去哪里错了？
EDIT 编辑
07-22 16:10:54.957: W/System.err(2233): java.lang.ClassNotFoundException: software.Data 07-22 16:10:54.961: W/System.err(2233): at java.lang.Class.classForName(Native Method) 07-22 16:10:54.961: W/System.err(2233): at java.lang.Class.forName(Class.java:217) 07-22 16:10:54.965: W/System.err(2233): at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:2301) 07-22 16:10:54.965: W/System.err(2233): at java.io.ObjectInputStream.readNewClassDesc(ObjectInputStream.java:1660) 07-22 16:10:54.965: W/System.err(2233): at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:683) 07-22 16:10:54.969: W/System.err(2233): at java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:1803) 07-22 16:10:54.969: W/System.err(2233): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:787) 07-22 16:10:54.973: W/System.err(2233): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2003) 07-22 16:10:54.973: W/System.err(2233): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:1960) 07-22 16:10:54.973: W/System.err(2233): at java.util.ArrayList.readObject(ArrayList.java:657) 07-22 16:10:54.973: W/System.err(2233): at java.lang.reflect.Method.invokeNative(Native Method) 07-22 16:10:54.977: W/System.err(2233): at java.lang.reflect.Method.invoke(Method.java:511) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readObjectForClass(ObjectInputStream.java:1354) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readHierarchy(ObjectInputStream.java:1266) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:1855) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:787) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2003) 07-22 16:10:54.977: W/System.err(2233): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:1960) 07-22 16:10:54.977: W/System.err(2233): at com.mainpackage.FullGenPhysics.a(Unknown Source) 07-22 16:10:54.977: W/System.err(2233): at com.mainpackage.de.run(Unknown Source) 07-22 16:10:54.981: W/System.err(2233): Caused by: java.lang.NoClassDefFoundError: software/Data 07-22 16:10:54.981: W/System.err(2233): ... 20 more 07-22 16:10:54.981: W/System.err(2233): Caused by: java.lang.ClassNotFoundException: software.Data 07-22 16:10:54.981: W/System.err(2233): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 07-22 16:10:54.981: W/System.err(2233): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 07-22 16:10:54.981: W/System.err(2233): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 07-22 16:10:54.985: W/System.err(2233): ... 20 more
2 个解决方案
解决方案1
1 已采纳 2014-07-22 10:30:16
It seems after going through proguard your serializable class's serialVersionUID is getting changed. 它经历后，似乎proguard你的serializable类的serialVersionUID是得到改变。 You need to change the configuration of proguard to include: 您需要将configuration of proguard的configuration of proguard更改为包括：
-keepclassmembers class software.Data {
static final long serialVersionUID;
}
解决方案2
0 2014-07-22 11:56:23
I found a working solution after a bit of experimenting. 经过一些试验，我找到了一个可行的解决方案。 This is what I used: 这是我使用的：
-libraryjars Software.jar
-keep class software.**{
*;
}
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