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     23 
     24 <h1>ProGuard Reference Card</h1>
     25 
     26 <h2>Usage</h2>
     27 
     28 <code><b>java -jar proguard.jar </b></code><i>options</i> ...
     29 <p>
     30 &nbsp;&nbsp;Typically:
     31 <p>
     32 <code><b>java -jar proguard.jar @myconfig.pro</b></code>
     33 <p>
     34 
     35 <h2>Options</h2>
     36 
     37 <table cellspacing="10">
     38 
     39 <tr>
     40 <td valign="top"><a href="usage.html#at"><code><b>@</b></code></a><a href="usage.html#filename"><i>filename</i></a></td>
     41 
     42 <td>Short for '<code>-include</code> <i>filename</i>'.</td>
     43 </tr>
     44 
     45 <tr>
     46 <td valign="top"><a href="usage.html#include"><code><b>-include</b></code></a>
     47                  <a href="usage.html#filename"><i>filename</i></a></td>
     48 
     49 <td>Read configuration options from the given file.</td>
     50 </tr>
     51 
     52 <tr>
     53 <td valign="top"><a href="usage.html#basedirectory"><code><b>-basedirectory</b></code></a>
     54                  <a href="usage.html#filename"><i>directoryname</i></a></td>
     55 
     56 <td>Specifies the base directory for subsequent relative file names.</td>
     57 </tr>
     58 
     59 <tr>
     60 <td valign="top"><a href="usage.html#injars"><code><b>-injars</b></code></a>
     61                  <a href="usage.html#classpath"><i>class_path</i></a></td>
     62 <td>Specifies the program jars (or wars, ears, zips, or directories).</td>
     63 </tr>
     64 
     65 <tr>
     66 <td valign="top"><a href="usage.html#outjars"><code><b>-outjars</b></code></a>
     67                  <a href="usage.html#classpath"><i>class_path</i></a></td>
     68 <td>Specifies the names of the output jars (or wars, ears, zips, or
     69     directories).</td>
     70 </tr>
     71 
     72 <tr>
     73 <td valign="top"><a href="usage.html#libraryjars"><code><b>-libraryjars</b></code></a>
     74                  <a href="usage.html#classpath"><i>class_path</i></a></td>
     75 <td>Specifies the library jars (or wars, ears, zips, or directories).</td>
     76 </tr>
     77 
     78 <tr>
     79 <td valign="top"><a href="usage.html#skipnonpubliclibraryclasses"><code><b>-skipnonpubliclibraryclasses</b></code></a></td>
     80 <td>Ignore non-public library classes.</td>
     81 </tr>
     82 
     83 <tr>
     84 <td valign="top"><a href="usage.html#dontskipnonpubliclibraryclasses"><code><b>-dontskipnonpubliclibraryclasses</b></code></a></td>
     85 <td>Don't ignore non-public library classes (the default).</td>
     86 </tr>
     87 
     88 <tr>
     89 <td valign="top"><a href="usage.html#dontskipnonpubliclibraryclassmembers"><code><b>-dontskipnonpubliclibraryclassmembers</b></code></a></td>
     90 <td>Don't ignore package visible library class members.</td>
     91 </tr>
     92 
     93 <tr>
     94 <td valign="top"><a href="usage.html#keepdirectories"><code><b>-keepdirectories</b></code></a>
     95                  [<a href="usage.html#filters"><i>directory_filter</i></a>]</td>
     96 <td>Keep the specified directories in the output jars (or wars, ears, zips, or
     97     directories).</td>
     98 </tr>
     99 
    100 <tr>
    101 <td valign="top"><a href="usage.html#target"><code><b>-target</b></code></a>
    102                  <i>version</i></td>
    103 <td>Set the given version number in the processed classes.</td>
    104 </tr>
    105 
    106 <tr>
    107 <td valign="top"><a href="usage.html#forceprocessing"><code><b>-forceprocessing</b></code></a></td>
    108 <td>Process the input, even if the output seems up to date.</td>
    109 </tr>
    110 
    111 <tr>
    112 <td valign="top"><a href="usage.html#keep"><code><b>-keep</b></code></a>
    113                  [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
    114                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    115 <td>Preserve the specified classes <i>and</i> class members.</td>
    116 
    117 </tr>
    118 <tr>
    119 <td valign="top"><a href="usage.html#keepclassmembers"><code><b>-keepclassmembers</b></code></a>
    120                  [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
    121                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    122 <td>Preserve the specified class members, if their classes are preserved as
    123     well.</td>
    124 </tr>
    125 
    126 <tr>
    127 <td valign="top"><a href="usage.html#keepclasseswithmembers"><code><b>-keepclasseswithmembers</b></code></a>
    128                  [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
    129                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    130 <td>Preserve the specified classes <i>and</i> class members, if all of the
    131     specified class members are present.</td>
    132 </tr>
    133 
    134 <tr>
    135 <td valign="top"><a href="usage.html#keepnames"><code><b>-keepnames</b></code></a>
    136                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    137 <td>Preserve the names of the specified classes <i>and</i> class members (if
    138     they aren't removed in the shrinking step).</td>
    139 </tr>
    140 
    141 <tr>
    142 <td valign="top"><a href="usage.html#keepclassmembernames"><code><b>-keepclassmembernames</b></code></a>
    143                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    144 <td>Preserve the names of the specified class members (if they aren't removed
    145     in the shrinking step).</td>
    146 </tr>
    147 
    148 <tr>
    149 <td valign="top"><a href="usage.html#keepclasseswithmembernames"><code><b>-keepclasseswithmembernames</b></code></a>
    150                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    151 <td>Preserve the names of the specified classes <i>and</i> class members, if
    152     all of the specified class members are present (after the shrinking
    153     step).</td>
    154 </tr>
    155 
    156 <tr>
    157 <td valign="top"><a href="usage.html#printseeds"><code><b>-printseeds</b></code></a>
    158                  [<a href="usage.html#filename"><i>filename</i></a>]</td>
    159 <td>List classes and class members matched by the various <code>-keep</code>
    160     options, to the standard output or to the given file.</td>
    161 </tr>
    162 
    163 <tr>
    164 <td valign="top"><a href="usage.html#dontshrink"><code><b>-dontshrink</b></code></a></td>
    165 <td>Don't shrink the input class files.</td>
    166 </tr>
    167 
    168 <tr>
    169 <td valign="top"><a href="usage.html#printusage"><code><b>-printusage</b></code></a>
    170                  [<a href="usage.html#filename"><i>filename</i></a>]</td>
    171 <td>List dead code of the input class files, to the standard output or to the
    172     given file.</td>
    173 </tr>
    174 
    175 <tr>
    176 <td valign="top"><a href="usage.html#whyareyoukeeping"><code><b>-whyareyoukeeping</b></code></a>
    177                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    178 <td>Print details on why the given classes and class members are being kept in
    179     the shrinking step.</td>
    180 </tr>
    181 
    182 <tr>
    183 <td valign="top"><a href="usage.html#dontoptimize"><code><b>-dontoptimize</b></code></a></td>
    184 <td>Don't optimize the input class files.</td>
    185 </tr>
    186 
    187 <tr>
    188 <td valign="top"><a href="usage.html#optimizations"><code><b>-optimizations</b></code></a>
    189                  <a href="optimizations.html"><i>optimization_filter</i></a></td>
    190 <td>The optimizations to be enabled and disabled.</td>
    191 </tr>
    192 
    193 <tr>
    194 <td valign="top"><a href="usage.html#optimizationpasses"><code><b>-optimizationpasses</b></code></a>
    195                  <i>n</i></td>
    196 <td>The number of optimization passes to be performed.</td>
    197 </tr>
    198 
    199 <tr>
    200 <td valign="top"><a href="usage.html#assumenosideeffects"><code><b>-assumenosideeffects</b></code></a>
    201                  <a href="usage.html#classspecification"><i>class_specification</i></a></td>
    202 <td>Assume that the specified methods don't have any side effects, while
    203     optimizing.</td>
    204 </tr>
    205 
    206 <tr>
    207 <td valign="top"><a href="usage.html#allowaccessmodification"><code><b>-allowaccessmodification</b></code></a></td>
    208 <td>Allow the access modifiers of classes and class members to be modified,
    209     while optimizing.</td>
    210 </tr>
    211 
    212 <tr>
    213 <td valign="top"><a href="usage.html#mergeinterfacesaggressively"><code><b>-mergeinterfacesaggressively</b></code></a></td>
    214 <td>Allow any interfaces to be merged, while optimizing.</td>
    215 </tr>
    216 
    217 <tr>
    218 <td valign="top"><a href="usage.html#dontobfuscate"><code><b>-dontobfuscate</b></code></a></td>
    219 <td>Don't obfuscate the input class files.</td>
    220 </tr>
    221 
    222 <tr>
    223 <td valign="top"><a href="usage.html#printmapping"><code><b>-printmapping</b></code></a>
    224                  [<a href="usage.html#filename"><i>filename</i></a>]</td>
    225 <td>Print the mapping from old names to new names for classes and class members
    226     that have been renamed, to the standard output or to the given file.</td>
    227 </tr>
    228 
    229 <tr>
    230 <td valign="top"><a href="usage.html#applymapping"><code><b>-applymapping</b></code></a>
    231                  <a href="usage.html#filename"><i>filename</i></a></td>
    232 <td>Reuse the given mapping, for incremental obfuscation.</td>
    233 </tr>
    234 
    235 <tr>
    236 <td valign="top"><a href="usage.html#obfuscationdictionary"><code><b>-obfuscationdictionary</b></code></a>
    237                  <a href="usage.html#filename"><i>filename</i></a></td>
    238 <td>Use the words in the given text file as obfuscated field names and method names.</td>
    239 </tr>
    240 
    241 <tr>
    242 <td valign="top"><a href="usage.html#classobfuscationdictionary"><code><b>-classobfuscationdictionary</b></code></a>
    243                  <a href="usage.html#filename"><i>filename</i></a></td>
    244 <td>Use the words in the given text file as obfuscated class names.</td>
    245 </tr>
    246 
    247 <tr>
    248 <td valign="top"><a href="usage.html#packageobfuscationdictionary"><code><b>-packageobfuscationdictionary</b></code></a>
    249                  <a href="usage.html#filename"><i>filename</i></a></td>
    250 <td>Use the words in the given text file as obfuscated package names.</td>
    251 </tr>
    252 
    253 <tr>
    254 <td valign="top"><a href="usage.html#overloadaggressively"><code><b>-overloadaggressively</b></code></a></td>
    255 <td>Apply aggressive overloading while obfuscating.</td>
    256 </tr>
    257 
    258 <tr>
    259 <td valign="top"><a href="usage.html#useuniqueclassmembernames"><code><b>-useuniqueclassmembernames</b></code></a></td>
    260 <td>Ensure uniform obfuscated class member names for subsequent incremental
    261     obfuscation.</td> </tr>
    262 
    263 <tr>
    264 <td valign="top"><a href="usage.html#dontusemixedcaseclassnames"><code><b>-dontusemixedcaseclassnames</b></code></a></td>
    265 <td>Don't generate mixed-case class names while obfuscating.</td>
    266 </tr>
    267 
    268 <tr>
    269 <td valign="top"><a href="usage.html#keeppackagenames"><code><b>-keeppackagenames</b></code></a>
    270                  [<i><a href="usage.html#filters">package_filter</a></i>]</td>
    271 <td>Keep the specified package names from being obfuscated.</td>
    272 </tr>
    273 
    274 <tr>
    275 <td valign="top"><a href="usage.html#flattenpackagehierarchy"><code><b>-flattenpackagehierarchy</b></code></a>
    276                  [<i>package_name</i>]</td>
    277 <td>Repackage all packages that are renamed into the single given parent
    278     package.</td>
    279 </tr>
    280 
    281 <tr>
    282 <td valign="top"><a href="usage.html#repackageclasses"><code><b>-repackageclasses</b></code></a>
    283                  [<i>package_name</i>]</td>
    284 <td>Repackage all class files that are renamed into the single given
    285     package.</td>
    286 </tr>
    287 
    288 <tr>
    289 <td valign="top"><a href="usage.html#keepattributes"><code><b>-keepattributes</b></code></a>
    290                  [<i><a href="usage.html#filters">attribute_filter</a></i>]</td>
    291 <td>Preserve the given optional attributes; typically
    292     <code>Exceptions</code>, <code>InnerClasses</code>,
    293     <code>Signature</code>, <code>Deprecated</code>,
    294     <code>SourceFile</code>, <code>SourceDir</code>,
    295     <code>LineNumberTable</code>,
    296     <code>LocalVariableTable</code>, <code>LocalVariableTypeTable</code>,
    297     <code>Synthetic</code>, <code>EnclosingMethod</code>, and
    298     <code>*Annotation*</code>.</td>
    299 </tr>
    300 
    301 <tr>
    302 <td valign="top"><a href="usage.html#keepparameternames"><code><b>-keepparameternames</b></code></a></td>
    303 <td>Keep the parameter names and types of methods that are kept.</td>
    304 </tr>
    305 
    306 <tr>
    307 <td valign="top"><a href="usage.html#renamesourcefileattribute"><code><b>-renamesourcefileattribute</b></code></a>
    308                  [<i>string</i>]</td>
    309 <td>Put the given constant string in the <code>SourceFile</code>
    310     attributes.</td>
    311 </tr>
    312 
    313 <tr>
    314 <td valign="top"><a href="usage.html#adaptclassstrings"><code><b>-adaptclassstrings</b></code></a>
    315                  [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
    316 <td>Adapt string constants in the specified classes, based on the obfuscated
    317     names of any corresponding classes.</td>
    318 </tr>
    319 
    320 <tr>
    321 <td valign="top"><a href="usage.html#adaptresourcefilenames"><code><b>-adaptresourcefilenames</b></code></a>
    322                  [<a href="usage.html#filefilters"><i>file_filter</i></a>]</td>
    323 <td>Rename the specified resource files, based on the obfuscated names of the
    324     corresponding class files.</td>
    325 </tr>
    326 
    327 <tr>
    328 <td valign="top"><a href="usage.html#adaptresourcefilecontents"><code><b>-adaptresourcefilecontents</b></code></a>
    329                  [<a href="usage.html#filefilters"><i>file_filter</i></a>]</td>
    330 <td>Update the contents of the specified resource files, based on the
    331     obfuscated names of the processed classes.</td>
    332 </tr>
    333 
    334 <tr>
    335 <td valign="top"><a href="usage.html#dontpreverify"><code><b>-dontpreverify</b></code></a></td>
    336 <td>Don't preverify the processed class files.</td>
    337 </tr>
    338 
    339 <tr>
    340 <td valign="top"><a href="usage.html#microedition"><code><b>-microedition</b></code></a></td>
    341 <td>Target the processed class files at Java Micro Edition.</td>
    342 </tr>
    343 
    344 <tr>
    345 <td valign="top"><a href="usage.html#verbose"><code><b>-verbose</b></code></a></td>
    346 <td>Write out some more information during processing.</td>
    347 </tr>
    348 
    349 <tr>
    350 <td valign="top"><a href="usage.html#dontnote"><code><b>-dontnote</b></code></a>
    351                  [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
    352 <td>Don't print notes about potential mistakes or omissions in the
    353     configuration.</td>
    354 </tr>
    355 
    356 <tr>
    357 <td valign="top"><a href="usage.html#dontwarn"><code><b>-dontwarn</b></code></a>
    358                  [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
    359 <td>Don't warn about unresolved references at all.</td>
    360 </tr>
    361 
    362 <tr>
    363 <td valign="top"><a href="usage.html#ignorewarnings"><code><b>-ignorewarnings</b></code></a></td>
    364 <td>Print warnings about unresolved references, but continue processing
    365     anyhow.</td>
    366 </tr>
    367 
    368 <tr>
    369 <td valign="top"><a href="usage.html#printconfiguration"><code><b>-printconfiguration</b></code></a>
    370                  [<a href="usage.html#filename"><i>filename</i></a>]</td>
    371 <td>Write out the entire configuration in traditional ProGuard style, to the
    372     standard output or to the given file.</td>
    373 </tr>
    374 
    375 <tr>
    376 <td valign="top"><a href="usage.html#dump"><code><b>-dump</b></code></a>
    377                  [<a href="usage.html#filename"><i>filename</i></a>]</td>
    378 <td>Write out the internal structure of the processed class files, to the
    379     standard output or to the given file.</td>
    380 </tr>
    381 
    382 </table>
    383 <p>
    384 Notes:
    385 <ul>
    386 
    387 <li><i>class_path</i> is a list of jars, wars, ears, zips, and directories,
    388     with optional filters, separated by path separators.</li>
    389 <li><i>filename</i> can contain Java system properties delimited by
    390     '<b>&lt;</b>' and '<b>&gt;</b>'.</li>
    391 <li>If <i>filename</i> contains special characters, the entire name
    392     should be quoted with single or double quotes.</li>
    393 </ul>
    394 <p>
    395 
    396 <h2>Overview of <code>Keep</code> Options</h2>
    397 
    398 <table cellpadding="5">
    399 
    400 <tr>
    401 <th>Keep</th>
    402 <td>From being removed or renamed</td>
    403 <td>From being renamed</td>
    404 </tr>
    405 
    406 <tr>
    407 <td>Classes and class members</td>
    408 <td bgcolor="#E0E0E0"><a href="usage.html#keep"><code>-keep</code></a></td>
    409 <td bgcolor="#E0E0E0"><a href="usage.html#keepnames"><code>-keepnames</code></a></td>
    410 </tr>
    411 
    412 <tr>
    413 <td>Class members only</td>
    414 <td bgcolor="#E0E0E0"><a href="usage.html#keepclassmembers"><code>-keepclassmembers</code></a></td>
    415 <td bgcolor="#E0E0E0"><a href="usage.html#keepclassmembernames"><code>-keepclassmembernames</code></a></td>
    416 </tr>
    417 
    418 <tr>
    419 <td>Classes and class members, if class members present</td>
    420 <td bgcolor="#E0E0E0"><a href="usage.html#keepclasseswithmembers"><code>-keepclasseswithmembers</code></a></td>
    421 <td bgcolor="#E0E0E0"><a href="usage.html#keepclasseswithmembernames"><code>-keepclasseswithmembernames</code></a></td>
    422 </tr>
    423 
    424 </table>
    425 <p>
    426 
    427 <h2>Keep Option Modifiers</h2>
    428 
    429 <table cellspacing="10">
    430 
    431 <tr>
    432 <td valign="top"><a href="usage.html#includedescriptorclasses"><code><b>includedescriptorclasses</b></code></a></td>
    433 <td>Also keep any classes in the descriptors of specified fields and methods.
    434 </tr>
    435 
    436 <td valign="top"><a href="usage.html#allowshrinking"><code><b>allowshrinking</b></code></a></td>
    437 <td>Allow the specified entry points to be removed in the shrinking step.</td>
    438 </tr>
    439 
    440 <tr>
    441 <td valign="top"><a href="usage.html#allowoptimization"><code><b>allowoptimization</b></code></a></td>
    442 <td>Allow the specified entry points to be modified in the optimization
    443     step.</td>
    444 </tr>
    445 
    446 <tr>
    447 <td valign="top"><a href="usage.html#allowobfuscation"><code><b>allowobfuscation</b></code></a></td>
    448 <td>Allow the specified entry points to be renamed in the obfuscation step.</td>
    449 </tr>
    450 
    451 </table>
    452 <p>
    453 
    454 <h2>Class Specifications</h2>
    455 
    456 <pre>
    457 [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>final</b>|<b>abstract</b> ...] [<b>!</b>]<b>interface</b>|<b>class</b> <i>classname</i>
    458     [<b>extends</b>|<b>implements</b> [<b>@</b><i>annotationtype</i>] <i>classname</i>]
    459 [<b>{</b>
    460     [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b>|<b>volatile</b>|<b>transient</b> ...] <b>&lt;fields&gt;</b> |
    461                                                                       (<i>fieldtype fieldname</i>)<b>;</b>
    462     [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b>|<b>synchronized</b>|<b>native</b>|<b>abstract</b>|<b>strictfp</b> ...] <b>&lt;methods&gt;</b> |
    463                                                                                            <b>&lt;init&gt;(</b><i>argumenttype,...</i><b>)</b> |
    464                                                                                            <i>classname</i><b>(</b><i>argumenttype,...</i><b>)</b> |
    465                                                                                            (<i>returntype methodname</i><b>(</b><i>argumenttype,...</i><b>)</b>)<b>;</b>
    466     [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b> ... ] <b>*;</b>
    467     ...
    468 <b>}</b>]
    469 </pre>
    470 <p>
    471 Notes:
    472 <ul>
    473 <li>Class names must always be fully qualified, i.e. including their package
    474     names.</li>
    475 <li>Types in <i>classname</i>, <i>annotationtype</i>, <i>returntype</i>, and
    476     <i>argumenttype</i> can contain wildcards: '<code><b>?</b></code>' for a
    477     single character, '<code><b>*</b></code>' for any number of characters
    478     (but not the package separator), '<code><b>**</b></code>' for any number
    479     of (any) characters, '<code><b>%</b></code>' for any primitive type,
    480     '<code><b>***</b></code>' for any type, and '<code><b>...</b></code>' for       any number of arguments.</li>
    481 <li><i>fieldname</i> and <i>methodname</i> can contain wildcards as well:
    482     '<code><b>?</b></code>' for a single character and '<code><b>*</b></code>'
    483     for any number of characters.</li>
    484 </ul>
    485 
    486 <hr />
    487 <address>
    488 Copyright &copy; 2002-2014
    489 <a target="other" href="http://www.lafortune.eu/">Eric Lafortune</a> @ <a target="top" href="http://www.saikoa.com/">Saikoa</a>.
    490 </address>
    491 </body>
    492 </html>
    493