我在jar文件中有app。我试着用ProGuard对它进行篡改。在我的ProGuard配置文件中,我添加了:
-keep public class forms.Login{
public static void main(java.lang.String[]);
}
在obfustication映射文件后显示:forms.Login - > forms.Login:... void main(java.lang.String []) - >主...
我运行我的应用程序java -cp pathToObfusticatedJar.jar forms.Login,但是我收到错误:
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.VerifyError: Expecting a stackmap frame at branch target 52
Exception Details:
Location:
forms/Login.main([Ljava/lang/String;)V @0: invokestatic
Reason:
Expected stackmap frame at this location.
Bytecode:
0x0000000: b800 904c 2bbe 3d03 3e1d 1ca2 0026 2b1d
0x0000010: 323a 0412 0619 04b6 0093 b600 6499 000e
0x0000020: 1904 b600 92b8 0091 a700 0984 0301 a7ff
0x0000030: dba7 0050 4c12 0db6 0061 b800 68b2 003f
0x0000040: 012b b600 69a7 003c 4c12 0db6 0061 b800
0x0000050: 68b2 003f 012b b600 69a7 0028 4c12 0db6
0x0000060: 0061 b800 68b2 003f 012b b600 69a7 0014
0x0000070: 4c12 0db6 0061 b800 68b2 003f 012b b600
0x0000080: 69bb 0013 59b7 005a b800 5fb1
Exception Handler Table:
bci [0, 49] => handler: 52
bci [0, 49] => handler: 72
bci [0, 49] => handler: 92
bci [0, 49] => handler: 112
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.privateGetMethodRecursive(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(Unknown Source)
at sun.launcher.LauncherHelper.validateMainClass(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
有人可以如此善意地解释我做错了什么吗?我是否必须更改proguard配置或以某种方式在cmd中设置main方法? 另外,我相信我已经设置了保持我的public static void main方法,但Proguard对此进行了修改。为什么?如何使它保持不变?
答案 0 :(得分:1)
在Java 7 +上运行java应用程序时,您似乎已禁用preverification
。
检查您的配置并移除-dontpreverify
。