After a while trying some solutions here I'm still facing the problem of getting NullPointerException, apparently when using Jackson library, after trying to shrink my jar file using Proguard.
This is what I had defined to my Proguard config file:
-injars <my_raw_filejar>.jar
-outjars <shrunk_filejar>.jar
-libraryjars <JAVA_HOME>/lib/rt.jar
-keep public class packagename.MainClass{
public static void main(java.lang.String[]);
}
-keepnames class org.codehaus.jackson.** { *; }
-keepattributes *Annotation*
-keepattributes EnclosingMethod
-keepattributes Signature
-dontobfuscate
-optimizations !code/allocation/variable
-dontoptimize
-dontwarn
-ignorewarnings
But I'm getting the error below, once I run my generated shrunk jar:
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:535)
at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:452)
at org.apache.beam.sdk.options.PipelineOptionsFactory.<clinit>(PipelineOptionsFactory.java:450)
at skry.tech.terbium.pipelines.TerbiumFeedBigTablePipeline.main(TerbiumFeedBigTablePipeline.java:30)
Caused by: java.lang.NullPointerException
at com.fasterxml.jackson.databind.cfg.MapperConfig.collectFeatureDefaults(MapperConfig.java:99)
at com.fasterxml.jackson.databind.cfg.MapperConfigBase.<clinit>(MapperConfigBase.java:31)
... 4 more
Is there any clue of what is happening and how to solve this error?
I had the same problem here.
Since the issue seemed to be based on an Enum being null. I added the following code to my proguard.conf
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
Related
I am not very familiar with proguard, I want to obfuscate a JavaFX application, I already did it right but now after adding some changes to the project things screwed up.
Here is my .pro configuration file :
-injars ../INJAR.jar
-outjars ../OUTJAR.jar
-libraryjars 'rt.jar'
-libraryjars 'jce.jar'
-libraryjars 'jfxrt.jar'
-dontshrink
-dontoptimize
-flattenpackagehierarchy ''
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,*Annotation*,Synthetic,EnclosingMethod
-adaptresourcefilecontents **.fxml,**.properties,META-INF/MANIFEST.MF
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-keep class javax.** { *; }
-keep class impl.** { *; }
-dontwarn impl.**
-keep class org.** { *; }
-dontwarn org.**
-keepclasseswithmembers public class main.Main {
public static void main(java.lang.String[]);
}
-keepclassmembernames class * {
#javafx.fxml.FXML *;
}
-keepclassmembernames class main.*Controller {
public <methods>;
public <fields>;
}
-keepclassmembernames class main.NewApplicationController$Applicant {
public <methods>;
public <fields>;
}
-keepclassmembernames class main.RDVTaker {
public <methods>;
}
-obfuscationdictionary members.txt
-classobfuscationdictionary classes.txt
-printmapping mapping.txt
by executing the command :
java -jar obf_data/proguard.jar #obf_data/myconfig.pro > obf_data/info.txt
I get this erro :
Error: Unexpected error while writing class [oshi/hardware/platform/mac/MacDisks] (Overflow of unsigned short value [70168])
I bypassed the above error by removing -dontshrink option, but in this case the resulting jar is raising the following error : Error: Invalid or corrupt jarfile OUTJAR.jar
And by removing both -dontshrink and -dontoptimize another error get raised, a stacktarce is printed, but I found out that the error was described at this level of stack :
Caused by: javafx.fxml.LoadException:
file:/C:/Users/younes/IdeaProjects/vpro/out/artifacts/vpro/OUTJAR.jar.
jar!/main/main.fxml:12
I am wondering if someone got a supposition, idea or even another obfuscating tool,
Thanks in advance
All of your FXML file names should start with UpperCase, accordingly you need to update your dictionaries.
Below is the application.pro which is the configuration to obfuscate the spring related standalone application:
# This ProGuard configuration file illustrates how to process applications.
# Usage:
# java -jar proguard.jar #applications.pro
#
# Specify the input jars, output jars, and library jars.
-injars xyz.jar
-outjars xyz_out.jar
-libraryjars C:\Program Files\Java\jdk1.8.0_20\jre\lib\rt.jar
-libraryjars <LocationOfJar>/xyz.jar
#-libraryjars servlet.jar
#-libraryjars jai_core.jar
#...
# Save the obfuscation mapping to a file, so you can de-obfuscate any stack
# traces later on. Keep a fixed source file attribute and all line number
# tables to get line numbers in the stack traces.
# You can comment this out if you're not interested in stack traces.
-printmapping out.map
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
# Preserve all annotations.
-keepattributes *Annotation*
# You can print out the seeds that are matching the keep options below.
#-printseeds out.seeds
# Preserve all public applications.
-keepclasseswithmembers public class * {
public static void main(java.lang.String[]);
}
# Preserve all native method names and the names of their classes.
-keepclasseswithmembernames,includedescriptorclasses class * {
native <methods>;
}
# Preserve the special static methods that are required in all enumeration
# classes.
-keepclassmembers,allowoptimization enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
# You can comment this out if your application doesn't use serialization.
# If your code contains serializable classes that have to be backward
# compatible, please refer to the manual.
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
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();
}
# Your application may contain more items that need to be preserved;
# typically classes that are dynamically created using Class.forName:
# -keep public class mypackage.MyClass
# -keep public interface mypackage.MyInterface
# -keep public class * implements mypackage.MyInterface
#Warnings to be removed. Otherwise maven plugin stops, but not dangerous
-keep public class com.sun.xml.internal.**
-keep public class com.sun.istack.internal.**
-keep public class org.codehaus.jackson.**
-keep public class org.springframework.**
-keep public class java.awt.**
-keep public class javax.security.**
-keep public class java.beans.**
-keep public class javax.xml.**
-keep public class java.util.**
-keep public class org.w3c.dom.**
-keep public class com.google.common.**
-keep public class org.apache.**
-keep public class org.xnio.**
-keep public class javax.xml.**
-keep public class java.time.**
-keep public class com.sun.corba.**
-keep public class org.hibernate.**
-keep public class antlr.**
-dontwarn com.sun.xml.internal.**
-dontwarn com.sun.istack.internal.**
-dontwarn org.codehaus.jackson.**
-dontwarn org.springframework.**
-dontwarn java.awt.**
-dontwarn javax.security.**
-dontwarn java.beans.**
-dontwarn javax.xml.**
-dontwarn java.util.**
-dontwarn org.w3c.dom.**
-dontwarn com.google.common.**
-dontwarn org.apache.**
-dontwarn org.xnio.**
-dontwarn javax.xml.**
-dontwarn java.time.**
-dontwarn com.sun.corba.**
-dontwarn org.hibernate.**
-dontwarn antlr.**
-dontskipnonpubliclibraryclasses
When I run:
java -jar proguard.jar #applications.pro
I get this below error:
Note: duplicate definition of library class
And output is not generated as given in the application.pro:
Note: there were 166 classes trying to access generic signatures using reflection.
You should consider keeping the signature attributes
(using '-keepattributes Signature').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 21 classes trying to access enclosing classes using reflection.
You should consider keeping the inner classes attributes
(using '-keepattributes InnerClasses').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 5 classes trying to access enclosing methods using reflection.
You should consider keeping the enclosing method attributes
(using '-keepattributes InnerClasses,EnclosingMethod').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 563 library classes explicitly being kept.
You don't need to keep library classes; they are already left unchanged.
(http://proguard.sourceforge.net/manual/troubleshooting.html#libraryclass)
Note: there were 55 unresolved dynamic references to classes or interfaces.
You should check if you need to specify additional program jars.
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclass)
Note: there were 4 class casts of dynamically created class instances.
You might consider explicitly keeping the mentioned classes and/or
their implementations (using '-keep').
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclasscast)
Note: there were 292 accesses to class members by means of introspection.
You should consider explicitly keeping the mentioned class members
(using '-keep' or '-keepclassmembers').
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclassmember)
Warning: there were 5329 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Warning: there were 117 instances of library classes depending on program classes.
You must avoid such dependencies, since the program classes will
be processed, while the library classes will remain unchanged.
(http://proguard.sourceforge.net/manual/troubleshooting.html#dependency)
Warning: there were 42 unresolved references to program class members.
Your input classes appear to be inconsistent.
You may need to recompile the code.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedprogramclassmember)
Error: Please correct the above warnings first.
How to resolve this issue?
DexGuard version 7.0.19 throwring error "java.lang.NoSuchMethodError: No static method setAnnotationDatabasePackageNames" in RoboGuice. (Code working fine for DexGuard versions below 7).
I have tried followings in my dexguard-project.txt
-keepattributes *Annotation*
-keepclassmembers class com.google.inject.Guice {
public static void setAnnotationDatabasePackageNames(java.lang.String[]); }
-keep public class com.google.inject.Guice
Please Suggest.
I am using ProGuard from the command line like this:
java -jar $PRO_GUARD_HOME/proguard.jar #proguard-rules.pro > usage.log
Here is my proguard-rules.pro rules file:
-injars build/libs/test-main-1.0.jar
-libraryjars /System/Library/Frameworks/JavaVM.framework/Classes/classes.jar
-dontoptimize
-dontobfuscate
-dontpreverify
-printusage
-dontnote
-keep public class com.foo.app.Main {
public static void main(java.lang.String[]);
}
-keepclassmembers class * {
static final % *;
static final java.lang.String *;
}
When I run the command above I get the following error:
Error: The output jar is empty. Did you specify the proper '-keep' options?
How do resolve this error?
Don't shrink library files. This worked for me;
# Keep - Library. Keep all public and protected classes, fields, and methods.
-keep public class * {
public protected <fields>;
public protected <methods>;
}
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.
This is a known bug that was fixed in Proguard 5.0. See https://sourceforge.net/p/proguard/bugs/518/