I am learning how to implement Proguard for Java obfuscation in MobileFirst 7.1. I created a new MobileFirst project with Android environment and followed the process described in IBM documentation:
However, when trying to export the signed APK I am getting the following errors:
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] Proguard returned with error code 1. See console
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] Note: there were 2640 duplicate class definitions.
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] You should check if you need to specify additional program jars.
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] java.lang.ClassCastException: java.lang.Object cannot be cast to java.lang.String
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.obfuscate.MemberObfuscator.newMemberName(MemberObfuscator.java:198)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.obfuscate.MemberNameCollector.visitAnyMember(MemberNameCollector.java:74)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.util.SimplifiedVisitor.visitProgramMember(SimplifiedVisitor.java:79)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.util.SimplifiedVisitor.visitProgramMethod(SimplifiedVisitor.java:91)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.visitor.MemberAccessFilter.visitProgramMethod(MemberAccessFilter.java:90)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramMethod.accept(ProgramMethod.java:71)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramClass.methodsAccept(ProgramClass.java:504)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.visitor.AllMemberVisitor.visitProgramClass(AllMemberVisitor.java:48)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramClass.accept(ProgramClass.java:346)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramClass.hierarchyAccept(ProgramClass.java:359)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.LibraryClass.hierarchyAccept(LibraryClass.java:371)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramClass.hierarchyAccept(ProgramClass.java:416)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.visitor.ClassHierarchyTraveler.visitProgramClass(ClassHierarchyTraveler.java:75)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java:85)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ProgramClass.accept(ProgramClass.java:346)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.classfile.ClassPool.classesAccept(ClassPool.java:116)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.obfuscate.Obfuscator.execute(Obfuscator.java:217)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.ProGuard.obfuscate(ProGuard.java:333)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.ProGuard.execute(ProGuard.java:135)
[2016-05-16 15:24:38 - myTestMyTestAppAndroid] at proguard.ProGuard.main(ProGuard.java:492)
I am confused because this is supposed to be a clean project, and I have not made any changes to the base files, neither in the app's assets or the proguard configuration file.
So why are these errors appearing while trying to export the APK?
proguard-project.txt:
# To enable ProGuard in your project, edit project.properties
# to define the proguard.config property as described in that file.
#
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in ${sdk.dir}/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the ProGuard
# include property in project.properties.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# Add any project specific keep options here:
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
-injars bin/classes
-injars libs
-outjars bin/classes-processed.jar
# Using Google's License Verification Library
-keep class com.android.vending.licensing.ILicensingService
# Specifies to write out some more information during processing.
# If the program terminates with an exception, this option will print out the entire stack trace, instead of just the exception message.
-verbose
# Annotations are represented by attributes that have no direct effect on the execution of the code.
-keepattributes *Annotation*
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keepattributes InnerClasses
-keep class **.R
-keep class **.R$* {
<fields>;
}
# These options let obfuscated applications or libraries produce stack traces that can still be deciphered later on
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
# Enable proguard with Cordova
-keep class org.apache.cordova.** { *; }
-keep public class * extends org.apache.cordova.CordovaPlugin
-keep class com.worklight.androidgap.push.** { *; }
-keep class com.worklight.wlclient.push.** { *; }
-keep class com.worklight.common.security.AppAuthenticityToken { *; }
# Enable proguard with Google libs
-keep class com.google.** { *;}
-dontwarn com.google.common.**
-dontwarn com.google.ads.**
# apache.http
-keep class org.apache.http.** { *; }
-dontwarn org.apache.http.**
-optimizations !class/merging/vertical*,!class/merging/horizontal*,!code/simplification/arithmetic,!field/*,!code/allocation/variable
-keep class net.sqlcipher.** { *; }
-dontwarn net.sqlcipher.**
-keep class org.codehaus.** { *; }
-keepattributes *Annotation*,EnclosingMethod
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
# These classes contain references to external jars which are not included in the default MobileFirst project.
-dontwarn com.worklight.common.internal.WLTrusteerInternal*
-dontwarn com.worklight.jsonstore.**
-dontwarn org.codehaus.jackson.map.ext.*
-dontwarn com.worklight.androidgap.push.GCMIntentService
-dontwarn com.worklight.androidgap.plugin.WLInitializationPlugin
-dontwarn com.worklight.wlclient.push.GCMIntentService
-dontwarn org.bouncycastle.**
-dontwarn com.worklight.androidgap.jsonstore.security.SecurityManager
-dontwarn com.worklight.wlclient.push.WLBroadcastReceiver
-dontwarn com.worklight.wlclient.push.common.*
-dontwarn com.worklight.wlclient.api.WLPush
-dontwarn com.worklight.wlclient.api.SecurityUtils
-dontwarn android.support.v4.**
-dontwarn android.net.SSLCertificateSocketFactory
-dontwarn android.net.http.*
