I'm using proguard to shrink a shaded jar for use as a command line tool. The shaded jar works fine but I'm getting an exception when running the jar created by proguard. The app uses Guice injection and I added configuration that I found on SO, mostly in this answer.
This is the Exception:
Exception in thread "main" java.lang.reflect.MalformedParameterizedTypeException
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.validateConstructorArguments(ParameterizedTypeImpl.java:60)
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.<init>(ParameterizedTypeImpl.java:53)
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.make(ParameterizedTypeImpl.java:95)
at sun.reflect.generics.factory.CoreReflectionFactory.makeParameterizedType(CoreReflectionFactory.java:105)
at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:140)
at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
at sun.reflect.generics.repository.ClassRepository.getSuperclass(ClassRepository.java:84)
at java.lang.Class.getGenericSuperclass(Class.java:696)
at com.google.inject.internal.MoreTypes.getGenericSupertype(MoreTypes.java:273)
at com.google.inject.TypeLiteral.getSupertype(TypeLiteral.java:257)
at com.google.inject.spi.InjectionPoint.hierarchyFor(InjectionPoint.java:755)
at com.google.inject.spi.InjectionPoint.getInjectionPoints(InjectionPoint.java:635)
at com.google.inject.spi.InjectionPoint.forInstanceMethodsAndFields(InjectionPoint.java:356)
at com.google.inject.internal.ConstructorBindingImpl.getInternalDependencies(ConstructorBindingImpl.java:151)
at com.google.inject.internal.InjectorImpl.getInternalDependencies(InjectorImpl.java:585)
at com.google.inject.internal.InjectorImpl.cleanup(InjectorImpl.java:543)
at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:529)
at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:847)
at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:772)
at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:256)
at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:205)
at com.google.inject.internal.InjectorImpl.getInternalFactory(InjectorImpl.java:853)
at com.google.inject.internal.FactoryProxy.notify(FactoryProxy.java:46)
at com.google.inject.internal.ProcessedBindingData.runCreationListeners(ProcessedBindingData.java:50)
at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:133)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:106)
at com.google.inject.Guice.createInjector(Guice.java:95)
at com.google.inject.Guice.createInjector(Guice.java:72)
at com.google.inject.Guice.createInjector(Guice.java:62)
at com.acme.ui.cli.Main.main(Main.java:44)
And this the configuration that's producing it:
-injars acme-cli-0.2.1-SNAPSHOT.jar
-outjars target/acme-cli-0.2.1-SNAPSHOT.jar
-libraryjars /Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/jre/lib/jce.jar
-libraryjars /Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/jre/lib/jsse.jar
-libraryjars /Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/jre/lib/rt.jar
-dontobfuscate
-dontpreverify
-dontoptimize
-printmapping mapping.map
-ignorewarnings
-keepattributes *Annotation*,Signature
# Keep - Applications. Keep all application classes, along with their 'main' methods.
-keep public class com.acme.ui.cli.Main {
public static void main(java.lang.String[]);
}
# Keep Guice-related classes
-keep public class javax.inject.**
-keep class com.google.inject**
-keep class * extends com.google.inject.AbstractModule
# keeps all fields and Constructors annotated with @Inject and @AssistedInject
-keepclasseswithmembers class * {
@com.google.inject.Inject <fields>;
@com.google.inject.Inject <init>(...);
}
-keepclasseswithmembers class * {
@com.google.inject.assistedinject.AssistedInject <fields>;
@com.google.inject.assistedinject.AssistedInject <init>(...);
}
When I add this the problem goes away:
-keep class * {
<init>(...);
}
But it keeps many more classes and doubles the size of the jar. I'm using proguard 4.10 and tried 4.9 too. These are some of the option I've experimented with that seemed most relevant:
-keepattributes *
-keepparameternames
-keep class sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl {
<init>(...);
}
Since it's seems related to Guice and keeping all constructors solves the problem, I've also experimented with the various ways you can configure the keep options without results. But I must say that I don't understand them fully.
I'm not sure if it's related to the problem, but what looks odd is that the only constructor in the class ParameterizedTypeImpl has a signature like this: private ParameterizedTypeImpl(java.lang.Class<?> aClass, java.lang.reflect.Type[] types, java.lang.reflect.Type type), but the signature in the stacktrace looks like it's accepting ParameterizedTypeImpl itself: ParameterizedTypeImpl.<init>(ParameterizedTypeImpl.java:53).
Now I'm stuck; Any suggestions that could help me further are very appreciated.
