Every time I Export Signed Application from eclipse and install the apk file onto my phone, the app would crash. This only happens with Proguard enabled.
Here is my proguard file
-libraryjars /libs/firebase-client-android-2.2.3.jar
-libraryjars /libs/android-support-v4.jar
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-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
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-keep public class * implements java.io.Serializable
-keep public class * extends android.support.v4.app.Fragment
-keep public class * extends android.support.v4.app.ListFragment
-dontwarn com.shaded.fasterxml.**
-dontwarn org.apache.**
-dontwarn org.shaded.apache.**
-keepnames class com.shaded.fasterxml.jackson.** { *; }
-keepnames class org.shaded.apache.**
-keepnames interface com.fasterxml.jackson.** {
*;
}
-keep public class * extends com.android.partysearch.ChatApplication
-keepclassmembers class * extends com.android.partysearch.ChatApplication{
public <init>(android.content.Context);
}
-keep public class org.spongycastle.** {
<fields>;
<methods>;
}
-keep public class org.apache.** {
<fields>;
<methods>;
}
-ignorewarnings
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
I ran the adb logcat command to check the crash report. Here's a snippet of the report that I believe is important:
E/AndroidRuntime(28630): Caused by: java.lang.RuntimeException: Something went wrong, please report to support@firebase.com
E/AndroidRuntime(28630): at com.firebase.client.core.h.a(Unknown Source)
E/AndroidRuntime(28630): at com.firebase.client.g.a(Unknown Source)
E/AndroidRuntime(28630): at com.partysearch.ChatApplication.onCreate(Unknown Source)
E/AndroidRuntime(28630): at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1024)
E/AndroidRuntime(28630): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4694)
E/AndroidRuntime(28630): ... 10 more
E/AndroidRuntime(28630): Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context]
E/AndroidRuntime(28630): at java.lang.Class.getConstructorOrMethod(Class.java:423)
E/AndroidRuntime(28630): at java.lang.Class.getConstructor(Class.java:397)
E/AndroidRuntime(28630): ... 15 more
2nd snippet:
W/System.err( 356): Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory)
W/System.err( 356): at libcore.io.Posix.open(Native Method)
W/System.err( 356): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
W/System.err( 356): at libcore.io.IoBridge.open(IoBridge.java:393)
W/System.err( 356): ... 8 more
If anyone can help me, I would be very be thankful and accept your answer.
UPDATE: So I added these to my proguard file
-keepattributes Signature
-keep class com.firebase.** { *; }
-keep class org.apache.** { *; }
-keepnames class javax.servlet.** { *; }
-keepnames class org.ietf.jgss.** { *; }
-dontwarn org.w3c.dom.**
-dontwarn org.joda.time.**
-dontwarn org.ietf.jgss.**
and now I got an error related to Jackson when Proguard is enabled. The app still works if Proguard is disabled. Here's the snippet of the crash log:
E/AndroidRuntime( 6032): Caused by: com.shaded.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "time" (class com.partysearch.Room), not marked as ignorable (5 known properties: , "note", "level", "userName", "console", "gametype"])
E/AndroidRuntime( 6032): at [Source: java.io.StringReader@42664098; line: 1, column: 51] (through reference chain: com.partysearch.Room["time"])
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.DeserializationContext.reportUnknownProperty(DeserializationContext.java:555)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:708)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperty(BeanDeserializerBase.java:1160)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:315)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:121)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:2888)
E/AndroidRuntime( 6032): at com.shaded.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2034)
E/AndroidRuntime( 6032): at com.firebase.client.DataSnapshot.getValue(DataSnapshot.java:184)
E/AndroidRuntime( 6032): ... 13 more
