In Android, I have proguard with the following settings.
-dontpreverify
# Hold onto the mapping.text file, it can be used to unobfuscate stack traces in the developer console using the retrace tool
-printmapping mapping.txt
# Keep line numbers so they appear in the stack trace of the develeper console
-keepattributes SourceFile,LineNumberTable
# The -optimizations option disables some arithmetic simplifications that Dalvik 1.0 and 1.5 can't handle.
-optimizations !code/simplification/arithmetic
# Activities, services and broadcast receivers are specified in the manifest file so they won't be automatically included
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
# Custom view components might be accessed from your layout files
-keep public class * extends android.view.View {
public <init>(android.content.Context);
public <init>(android.content.Context, android.util.AttributeSet);
public <init>(android.content.Context, android.util.AttributeSet, int);
public void set*(...);
}
# event handlers can be specified in the layout files e.g. android:onClick="nextButton_onClick", I borrowed this method name notation from .NET
-keepclassmembers class * extends android.app.Activity {
public void *_*(android.view.View);
}
# Parcelable implementations are accessed by introspection
-keepclassmembers class * implements android.os.Parcelable {
static android.os.Parcelable$Creator CREATOR;
}
# You might want to keep your annotations
-keepattributes *Annotation*
# I use Google Guava in my app
# see http://code.google.com/p/guava-libraries/wiki/UsingProGuardWithGuava
-libraryjars libs/google/jsr305-1.3.9.jar;libs/pinyin4j/pinyin4j-2.5.0.jar
-dontwarn sun.misc.Unsafe
-keepclasseswithmembers class com.google.common.base.internal.Finalizer{
<methods>;
}
Some of my library, are directly imported from Java SE (Contains JApplet for example)
How I can exclude them from proguard? Note, I have pinyin4j-2.5.0.jar library in -libraryjars. I thought that’s the way to tell proguard, “Hey, this is a library. Don’t do anything on it, OK?” But, seems like proguard still trying to process pinyin4j-2.5.0.jar
I’m getting the following errors.
Note: there were 125 duplicate class definitions.
Warning: demo.Pinyin4jAppletDemo: can't find superclass or interface javax.swing.JApplet
Warning: demo.Pinyin4jAppletDemo$1: can't find superclass or interface java.awt.event.WindowAdapter
Warning: demo.Pinyin4jAppletDemo$2: can't find superclass or interface java.awt.event.ActionListener
Warning: demo.Pinyin4jAppletDemo$3: can't find superclass or interface java.awt.event.ActionListener
Warning: org.jasypt.encryption.pbe.PBEBigDecimalCleanablePasswordEncryptor: can't find superclass or interface org.jasypt.encryption.pbe.PBEBigDecimalEncryptor
Warning: org.jasypt.encryption.pbe.PBEBigIntegerCleanablePasswordEncryptor: can't find superclass or interface org.jasypt.encryption.pbe.PBEBigIntegerEncryptor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyDescriptor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyDescriptor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyEditor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyEditor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyEditor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyEditorManager
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyDescriptor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.IntrospectionException
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyEditor
Warning: au.com.bytecode.opencsv.bean.CsvToBean: can't find referenced class java.beans.PropertyDescriptor
...
...
Warning: org.jasypt.normalization.Normalizer: can't find referenced class com.ibm.icu.text.Normalizer$Mode
You should check if you need to specify additional program jars.
Warning: there were 333 unresolved references to classes or interfaces.
You may need to specify additional library jars (using '-libraryjars').
Warning: there were 6 unresolved references to program class members.
Your input classes appear to be inconsistent.
You may need to recompile them and try again.
Alternatively, you may have to specify the option
'-dontskipnonpubliclibraryclassmembers'.
Error: Please correct the above warnings first.
Some of you may comment that for library jars which contain Java SE only methods (like Applet, Swing, …) cannot be used in Android. Nope. In fact, they run perfectly fine, as long as you consume their non-Java SE-only methods.
The full error log can be downloaded from here : https://www.dropbox.com/s/dns62f7gp6unusg/error-log.txt
If you are sure that these Java SE classes are not used, you can indeed ignore the warnings (as you have found in your own answer). An easier way to specify this:
See ProGuard manual > Troubleshooting > Warning: can’t find referenced class
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