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ProGuard Reference Card

Usage

java -jar proguard.jar options ...

Typically:

java -jar proguard.jar @myconfig.pro

Options

`@`filename	Short for '`-include` filename'.
`-include` filename	Read configuration options from the given file.
`-basedirectory` directoryname	Specifies the base directory for subsequent relative file names.
`-injars` class_path	Specifies the program jars (or wars, ears, zips, or directories).
`-outjars` class_path	Specifies the names of the output jars (or wars, ears, zips, or directories).
`-libraryjars` class_path	Specifies the library jars (or wars, ears, zips, or directories).
`-skipnonpubliclibraryclasses`	Ignore non-public library classes.
`-dontskipnonpubliclibraryclasses`	Don't ignore non-public library classes (the default).
`-dontskipnonpubliclibraryclassmembers`	Don't ignore package visible library class members.
`-keepdirectories` [directory_filter]	Keep the specified directories in the output jars (or wars, ears, zips, or directories).
`-target` version	Set the given version number in the processed classes.
`-forceprocessing`	Process the input, even if the output seems up to date.
`-keep` [,modifier,...] class_specification	Preserve the specified classes and class members.
`-keepclassmembers` [,modifier,...] class_specification	Preserve the specified class members, if their classes are preserved as well.
`-keepclasseswithmembers` [,modifier,...] class_specification	Preserve the specified classes and class members, if all of the specified class members are present.
`-keepnames` class_specification	Preserve the names of the specified classes and class members (if they aren't removed in the shrinking step).
`-keepclassmembernames` class_specification	Preserve the names of the specified class members (if they aren't removed in the shrinking step).
`-keepclasseswithmembernames` class_specification	Preserve the names of the specified classes and class members, if all of the specified class members are present (after the shrinking step).
`-printseeds` [filename]	List classes and class members matched by the various `-keep` options, to the standard output or to the given file.
`-dontshrink`	Don't shrink the input class files.
`-printusage` [filename]	List dead code of the input class files, to the standard output or to the given file.
`-whyareyoukeeping` class_specification	Print details on why the given classes and class members are being kept in the shrinking step.
`-dontoptimize`	Don't optimize the input class files.
`-optimizations` optimization_filter	The optimizations to be enabled and disabled.
`-optimizationpasses` n	The number of optimization passes to be performed.
`-assumenosideeffects` class_specification	Assume that the specified methods don't have any side effects, while optimizing.
`-allowaccessmodification`	Allow the access modifiers of classes and class members to be modified, while optimizing.
`-mergeinterfacesaggressively`	Allow any interfaces to be merged, while optimizing.
`-dontobfuscate`	Don't obfuscate the input class files.
`-printmapping` [filename]	Print the mapping from old names to new names for classes and class members that have been renamed, to the standard output or to the given file.
`-applymapping` filename	Reuse the given mapping, for incremental obfuscation.
`-obfuscationdictionary` filename	Use the words in the given text file as obfuscated field names and method names.
`-classobfuscationdictionary` filename	Use the words in the given text file as obfuscated class names.
`-packageobfuscationdictionary` filename	Use the words in the given text file as obfuscated package names.
`-overloadaggressively`	Apply aggressive overloading while obfuscating.
`-useuniqueclassmembernames`	Ensure uniform obfuscated class member names for subsequent incremental obfuscation.
`-dontusemixedcaseclassnames`	Don't generate mixed-case class names while obfuscating.
`-keeppackagenames` [package_filter]	Keep the specified package names from being obfuscated.
`-flattenpackagehierarchy` [package_name]	Repackage all packages that are renamed into the single given parent package.
`-repackageclasses` [package_name]	Repackage all class files that are renamed into the single given package.
`-keepattributes` [attribute_filter]	Preserve the given optional attributes; typically `Exceptions`, `InnerClasses`, `Signature`, `Deprecated`, `SourceFile`, `SourceDir`, `LineNumberTable`, `LocalVariableTable`, `LocalVariableTypeTable`, `Synthetic`, `EnclosingMethod`, and `Annotation`.
`-keepparameternames`	Keep the parameter names and types of methods that are kept.
`-renamesourcefileattribute` [string]	Put the given constant string in the `SourceFile` attributes.
`-adaptclassstrings` [class_filter]	Adapt string constants in the specified classes, based on the obfuscated names of any corresponding classes.
`-adaptresourcefilenames` [file_filter]	Rename the specified resource files, based on the obfuscated names of the corresponding class files.
`-adaptresourcefilecontents` [file_filter]	Update the contents of the specified resource files, based on the obfuscated names of the processed classes.
`-dontpreverify`	Don't preverify the processed class files.
`-microedition`	Target the processed class files at Java Micro Edition.
`-verbose`	Write out some more information during processing.
`-dontnote` [class_filter]	Don't print notes about potential mistakes or omissions in the configuration.
`-dontwarn` [class_filter]	Don't warn about unresolved references at all.
`-ignorewarnings`	Print warnings about unresolved references, but continue processing anyhow.
`-printconfiguration` [filename]	Write out the entire configuration in traditional ProGuard style, to the standard output or to the given file.
`-dump` [filename]	Write out the internal structure of the processed class files, to the standard output or to the given file.

Notes:

class_path is a list of jars, wars, ears, zips, and directories, with optional filters, separated by path separators.
filename can contain Java system properties delimited by '<' and '>'.
If filename contains special characters, the entire name should be quoted with single or double quotes.

Overview of `Keep` Options

Keep	From being removed or renamed	From being renamed
Classes and class members	`-keep`	`-keepnames`
Class members only	`-keepclassmembers`	`-keepclassmembernames`
Classes and class members, if class members present	`-keepclasseswithmembers`	`-keepclasseswithmembernames`

Keep Option Modifiers

`includedescriptorclasses`	Also keep any classes in the descriptors of specified fields and methods.
`allowshrinking`	Allow the specified entry points to be removed in the shrinking step.
`allowoptimization`	Allow the specified entry points to be modified in the optimization step.
`allowobfuscation`	Allow the specified entry points to be renamed in the obfuscation step.

Class Specifications

[@annotationtype] [[!]public|final|abstract ...] [!]interface|class classname
    [extends|implements [@annotationtype] classname]
[{
    [@annotationtype] [[!]public|private|protected|static|volatile|transient ...] <fields> |
                                                                      (fieldtype fieldname);
    [@annotationtype] [[!]public|private|protected|static|synchronized|native|abstract|strictfp ...] <methods> |
                                                                                           <init>(argumenttype,...) |
                                                                                           classname(argumenttype,...) |
                                                                                           (returntype methodname(argumenttype,...));
    [@annotationtype] [[!]public|private|protected|static ... ] *;
    ...
}]

Notes:

Class names must always be fully qualified, i.e. including their package names.
Types in classname, annotationtype, returntype, and argumenttype can contain wildcards: '?' for a single character, '*' for any number of characters (but not the package separator), '**' for any number of (any) characters, '%' for any primitive type, '***' for any type, and '...' for any number of arguments.
fieldname and methodname can contain wildcards as well: '?' for a single character and '*' for any number of characters.

ProGuard Reference Card

Usage

Options

Overview of Keep Options

Keep Option Modifiers

Class Specifications

Overview of `Keep` Options