问题
I enabled proguard for my android app. I can build the project successfully but it crashes on startup with classNotFoundException. It doesn't even find the launcher activity. Here is my proguard rules file
-libraryjars libs
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keepnames class com.mypackage.** { *; } //someone suggested this but doesn't work
# We only want obfuscation
-keepattributes InnerClasses,Signature
# Sdk
-keep public interface com.zendesk.sdk.** { *; }
-keep public class com.zendesk.sdk.** { *; }
# Appcompat and support
-keep interface android.support.v7.** { *; }
-keep class android.support.v7.** { *; }
-keep interface android.support.v4.** { *; }
-keep class android.support.v4.** { *; }
# Gson
-keep interface com.google.gson.** { *; }
-keep class com.google.gson.** { *; }
# Retrofit
#-keep class com.google.inject.** { *; }
#-keep class org.apache.http.** { *; }
#-keep class org.apache.james.mime4j.** { *; }
#-keep class javax.inject.** { *; }
#-keep class retrofit.** { *; }
#-keep interface retrofit.** { *; }
# Retrofit
-keep class com.squareup.okhttp.** { *; }
-keep interface com.squareup.okhttp.** { *; }
-dontwarn com.squareup.okhttp.**
-dontwarn rx.**
-dontwarn retrofit.**
-dontwarn okio.**
-keep class retrofit.** { *; }
-keepclasseswithmembers class * {
@retrofit.http.* <methods>;
}
# Jackson
-keepattributes *Annotation*,EnclosingMethod,Signature
-keepnames class com.fasterxml.jackson.** { *; }
-dontwarn com.fasterxml.jackson.databind.**
-keep class org.codehaus.** { *; }
-keepclassmembers public final enum org.codehaus.jackson.annotate.JsonAutoDetect$Visibility {
public static final org.codehaus.jackson.annotate.JsonAutoDetect$Visibility *; }
-keep public class your.class.** {
public void set*(***);
public *** get*();
}
#Picasso
-dontwarn com.squareup.okhttp.**
#-dontwarn javax.management.**
#-dontwarn java.lang.management.**
#-dontwarn org.apache.log4j.**
#-dontwarn org.apache.commons.logging.**
#-dontwarn org.json.*
#-dontwarn org.apache.commons.codec.binary.Base64
#-keep class javax.** {* ; }
#-keep class org.** { *; }
-dontwarn org.mortbay.**
-dontwarn org.slf4j.**
-dontwarn org.apache.log4j.**
-dontwarn org.apache.commons.logging.**
-dontwarn org.apache.commons.codec.binary.**
and here is my build.gradle file if that helps but it doesn't include all the dependencies. I have some jars in the libs folder as well.
apply plugin: 'com.android.application'
apply plugin: 'robolectric'
apply plugin: 'android'
apply plugin: 'newrelic'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
applicationId "com.mypackage"
minSdkVersion 14
targetSdkVersion 21
versionCode 54
versionName "2.002"
multiDexEnabled true
testInstrumentationRunner "com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner"
resConfigs "en", "fr" , "ar"
}
buildTypes {
release {
minifyEnabled true
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
minifyEnabled true
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
sourceSets {
androidTest {
setRoot('src/test')
}
}
dexOptions {
javaMaxHeapSize "4g"
}
lintOptions {
checkReleaseBuilds false
// Or, if you prefer, you can continue to check for errors in release builds,
// but continue the build even when errors are found:
abortOnError false
}
repositories{
maven { url 'https://zendesk.artifactoryonline.com/zendesk/repo' }
}
repositories {
mavenCentral()
}
dependencies {
compile fileTree(dir: 'libs', include: '*.jar')
compile 'com.android.support:appcompat-v7:21.+'
compile 'com.github.chrisbanes.photoview:library:1.2.3'
compile 'com.etsy.android.grid:library:1.0.5'
compile 'com.facebook.android:facebook-android-sdk:3.21.1'
compile 'com.google.android.gms:play-services-base:6.5.+'
compile 'com.google.android.gms:play-services-wallet:6.5.+'
compile 'com.google.android.gms:play-services-ads:6.5.+'
compile 'com.google.android.gms:play-services-maps:6.5.+'
compile 'com.google.android.gms:play-services-drive:6.5.+'
compile 'com.google.android.gms:play-services-appindexing:6.5.+'
compile 'com.google.android.gms:play-services-location:6.5.+'
compile 'com.google.android.gms:play-services-identity:6.5.+'
compile 'com.google.android.gms:play-services-plus:6.5.+'
compile 'com.android.support:multidex:1.0.+'
compile project(':Adjust')
compile project(':aFileChooser-cbccac1d1cb74a6d57d25c5ded61e4bf4fc40c91')
compile 'com.parse.bolts:bolts-android:1.+'
compile 'com.squareup.picasso:picasso:2.4.0'
compile 'com.android.support:recyclerview-v7:+'
compile (group: 'com.zendesk', name: 'sdk', version: '1.0.0.1'){
// exclude group:'picasso'
}
compile 'com.android.support:recyclerview-v7:+'
compile 'com.newrelic.agent.android:android-agent:4.+'
compile 'com.fasterxml.jackson.core:jackson-databind:2.4.2'
compile 'com.fasterxml.jackson.core:jackson-annotations:2.4.2'
compile 'com.fasterxml.jackson.core:jackson-core:2.4.2'
/*compile ('oauth.signpost:signpost-commonshttp4:1.2.1.2') {
exclude module: 'commons-logging'
exclude module: 'httpcore'
exclude module: 'httpclient'
}
compile ('oauth.signpost:signpost-core:1.2.1.2') {
exclude module: 'commons-codec'
}*/
androidTestCompile 'org.robolectric:robolectric:2.4'
androidTestCompile('junit:junit:4.12')
androidTestCompile('org.mockito:mockito-core:1.10.19')
}
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/ASL2.0'
exclude 'LICENSE.txt'
}
}
robolectric {
include '**/*Test.class'
}
Here is the full stack trace:
02-17 19:01:09.752: E/AndroidRuntime(2079): FATAL EXCEPTION: main
02-17 19:01:09.752: E/AndroidRuntime(2079): Process: com.mypackage, PID: 2079
02-17 19:01:09.752: E/AndroidRuntime(2079): java.lang.NoClassDefFoundError: Failed resolution of: Lcom/mypackage/activities/MainActivity;
02-17 19:01:09.752: E/AndroidRuntime(2079): at cmypackage.application.ApplicationContextProvider.onCreate(Unknown Source)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1011)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4518)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.app.ActivityThread.access$1500(ActivityThread.java:144)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.os.Handler.dispatchMessage(Handler.java:102)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.os.Looper.loop(Looper.java:135)
02-17 19:01:09.752: E/AndroidRuntime(2079): at android.app.ActivityThread.main(ActivityThread.java:5221)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.reflect.Method.invoke(Native Method)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.reflect.Method.invoke(Method.java:372)
02-17 19:01:09.752: E/AndroidRuntime(2079): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
02-17 19:01:09.752: E/AndroidRuntime(2079): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
02-17 19:01:09.752: E/AndroidRuntime(2079): Caused by: java.lang.ClassNotFoundException: Didn't find class "mypackage.activities.MainActivity" on path: DexPathList[[zip file "/data/app/mypackage-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
02-17 19:01:09.752: E/AndroidRuntime(2079): ... 12 more
02-17 19:01:09.752: E/AndroidRuntime(2079): Suppressed: java.lang.NoClassDefFoundError: mypackage.activities.MainActivity
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.DexFile.defineClassNative(Native Method)
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.DexFile.defineClass(DexFile.java:226)
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.DexPathList.findClass(DexPathList.java:321)
02-17 19:01:09.752: E/AndroidRuntime(2079): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
02-17 19:01:09.752: E/AndroidRuntime(2079): ... 14 more
02-17 19:01:09.752: E/AndroidRuntime(2079): Suppressed: java.lang.ClassNotFoundException: mypackage.MainActivity
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.Class.classForName(Native Method)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
02-17 19:01:09.752: E/AndroidRuntime(2079): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
02-17 19:01:09.752: E/AndroidRuntime(2079): ... 13 more
02-17 19:01:09.752: E/AndroidRuntime(2079): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
Edit: Below is the missing part from the stacktrace.
02-17 19:01:09.749: I/MultiDex(2079): VM with version 2.1.0 has multidex support
02-17 19:01:09.749: I/MultiDex(2079): install
02-17 19:01:09.749: I/MultiDex(2079): VM has multidex support, MultiDex support library is disabled.
02-17 19:01:09.750: I/art(2079): Rejecting re-init on previously-failed class java.lang.Class<android.support.v4.app.FragmentActivity>
02-17 19:01:09.750: I/art(2079): Rejecting re-init on previously-failed class java.lang.Class<android.support.v4.app.FragmentActivity>
02-17 19:01:09.751: I/art(2079): Rejecting re-init on previously-failed class java.lang.Class<mypackage.activities.MainActivity>
02-17 19:01:09.751: I/art(2079): Rejecting re-init on previously-failed class java.lang.Class<mypackage.activities.MainActivity>
02-17 19:01:09.751: D/AndroidRuntime(2079): Shutting down VM
02-17 19:01:09.751: D/AndroidRuntime(2079): --------- beginning of crash
回答1:
You'll want to also make sure to add in the New Relic proguard exceptions found here: https://docs.newrelic.com/docs/mobile-monitoring/mobile-monitoring-installation/android/installing-android-apps-gradle-android-studio#proguard
-keep class com.newrelic.** { *; }
-dontwarn com.newrelic.**
-keepattributes Exceptions, Signature, InnerClasses
回答2:
Remove the obfuscation rules related to activity and all also related to support libaries.Android studio by default has those templates.You could enable them by adding this rule in your gradle
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt')
}
}
Also please edit the rule for Jackson processor
-keep public class your.class.** {
public void set*(***);
public *** get*();
}
In this your class.** is the POJO(getter/setter) class that you have created for parsing your response
来源：https://stackoverflow.com/questions/28563803/android-proguard-classnotfoundexception