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1#
2# This ProGuard configuration file illustrates how to process servlets.
3# Usage:
4#     java -jar proguard.jar @servlets.pro
5#
6
7# Specify the input jars, output jars, and library jars.
8
9-injars  in.jar
10-outjars out.jar
11
12-libraryjars <java.home>/lib/rt.jar
13-libraryjars /usr/local/java/servlet/servlet.jar
14
15# Save the obfuscation mapping to a file, so you can de-obfuscate any stack
16# traces later on. Keep a fixed source file attribute and all line number
17# tables to get line numbers in the stack traces.
18# You can comment this out if you're not interested in stack traces.
19
20-printmapping out.map
21-renamesourcefileattribute SourceFile
22-keepattributes SourceFile,LineNumberTable
23
24# Preserve all annotations.
25
26-keepattributes *Annotation*
27
28# You can print out the seeds that are matching the keep options below.
29
30#-printseeds out.seeds
31
32# Preserve all public servlets.
33
34-keep public class * implements javax.servlet.Servlet
35
36# Preserve all native method names and the names of their classes.
37
38-keepclasseswithmembernames,includedescriptorclasses class * {
39    native <methods>;
40}
41
42# Preserve the special static methods that are required in all enumeration
43# classes.
44
45-keepclassmembers,allowoptimization enum * {
46    public static **[] values();
47    public static ** valueOf(java.lang.String);
48}
49
50# Explicitly preserve all serialization members. The Serializable interface
51# is only a marker interface, so it wouldn't save them.
52# You can comment this out if your library doesn't use serialization.
53# If your code contains serializable classes that have to be backward
54# compatible, please refer to the manual.
55
56-keepclassmembers class * implements java.io.Serializable {
57    static final long serialVersionUID;
58    static final java.io.ObjectStreamField[] serialPersistentFields;
59    private void writeObject(java.io.ObjectOutputStream);
60    private void readObject(java.io.ObjectInputStream);
61    java.lang.Object writeReplace();
62    java.lang.Object readResolve();
63}
64
65# Your application may contain more items that need to be preserved;
66# typically classes that are dynamically created using Class.forName:
67
68# -keep public class mypackage.MyClass
69# -keep public interface mypackage.MyInterface
70# -keep public class * implements mypackage.MyInterface
71