1//
2// This Gradle build file illustrates how to process servlets.
3// Usage:
4//     gradle -b servlets.gradle proguard
5//
6
7// Tell Gradle where to find the ProGuard task.
8
9buildscript {
10    repositories {
11        flatDir dirs: '../../lib'
12    }
13    dependencies {
14        classpath ':proguard'
15    }
16}
17
18// Define a ProGuard task.
19
20task proguard(type: proguard.gradle.ProGuardTask) {
21
22    // You should probably import a more compact ProGuard-style configuration
23    // file for all static settings, but we're specifying them all here, for
24    // the sake of the example.
25    //configuration 'configuration.pro'
26
27    // Specify the input jars, output jars, and library jars.
28
29    injars  'in.jar'
30    outjars 'out.jar'
31
32    libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
33    libraryjars '/usr/local/java/servlet/servlet.jar'
34
35    // Save the obfuscation mapping to a file, so you can de-obfuscate any stack
36    // traces later on. Keep a fixed source file attribute and all line number
37    // tables to get line numbers in the stack traces.
38    // You can comment this out if you're not interested in stack traces.
39
40    printmapping 'out.map'
41    renamesourcefileattribute 'SourceFile'
42    keepattributes 'SourceFile,LineNumberTable'
43
44    // Preserve all annotations.
45
46    keepattributes '*Annotation*'
47
48    // You can print out the seeds that are matching the keep options below.
49
50    //printseeds 'out.seeds'
51
52    // Preserve all public servlets.
53
54    keep 'public class * implements javax.servlet.Servlet'
55
56    // Preserve all native method names and the names of their classes.
57
58    keepclasseswithmembernames includedescriptorclasses:true, 'class * { \
59        native <methods>; \
60    }'
61
62    // Preserve the special static methods that are required in all enumeration
63    // classes.
64
65    keepclassmembers allowshrinking:true, 'enum * { \
66        public static **[] values(); \
67        public static ** valueOf(java.lang.String); \
68    }'
69
70    // Explicitly preserve all serialization members. The Serializable interface
71    // is only a marker interface, so it wouldn't save them.
72    // You can comment this out if your library doesn't use serialization.
73    // If your code contains serializable classes that have to be backward
74    // compatible, please refer to the manual.
75
76    keepclassmembers 'class * implements java.io.Serializable { \
77        static final long serialVersionUID; \
78        static final java.io.ObjectStreamField[] serialPersistentFields; \
79        private void writeObject(java.io.ObjectOutputStream); \
80        private void readObject(java.io.ObjectInputStream); \
81        java.lang.Object writeReplace(); \
82        java.lang.Object readResolve(); \
83    }'
84
85    // Your application may contain more items that need to be preserved;
86    // typically classes that are dynamically created using Class.forName:
87
88    // keep 'public class mypackage.MyClass'
89    // keep 'public interface mypackage.MyInterface'
90    // keep 'public class * implements mypackage.MyInterface'
91}
92