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      1 //
      2 // This Gradle build file illustrates how to process J2ME midlets.
      3 // Usage:
      4 //     gradle -b midlets.gradle proguard
      5 //
      6 
      7 // Tell Gradle where to find the ProGuard task.
      8 
      9 buildscript {
     10     repositories {
     11         flatDir dirs: '../../lib'
     12     }
     13     dependencies {
     14         classpath ':proguard'
     15     }
     16 }
     17 
     18 // Define a ProGuard task.
     19 
     20 task proguard(type: proguard.gradle.ProGuardTask) {
     21 
     22     // You should probably import a more compact ProGuard-style configuration
     23     // file for all static settings, but we're specifying them all here, for
     24     // the sake of the example.
     25     //configuration 'configuration.pro'
     26 
     27     // Specify the input jars, output jars, and library jars.
     28 
     29     injars  'in.jar'
     30     outjars 'out.jar'
     31 
     32     libraryjars '/usr/local/java/wtk2.5.2/lib/midpapi20.jar'
     33     libraryjars '/usr/local/java/wtk2.5.2/lib/cldcapi11.jar'
     34 
     35     // Preverify the code suitably for Java Micro Edition.
     36 
     37     microedition
     38 
     39     // Allow methods with the same signature, except for the return type,
     40     // to get the same obfuscation name.
     41 
     42     overloadaggressively
     43 
     44     // Put all obfuscated classes into the nameless root package.
     45 
     46     repackageclasses ''
     47 
     48     // Allow classes and class members to be made public.
     49 
     50     allowaccessmodification
     51 
     52     // On Windows, you can't use mixed case class names,
     53     // should you still want to use the preverify tool.
     54     //
     55     // dontusemixedcaseclassnames
     56 
     57     // Save the obfuscation mapping to a file, so you can de-obfuscate any stack
     58     // traces later on.
     59 
     60     printmapping 'out.map'
     61 
     62     // You can keep a fixed source file attribute and all line number tables to
     63     // get stack traces with line numbers.
     64 
     65     //renamesourcefileattribute 'SourceFile'
     66     //keepattributes 'SourceFile,LineNumberTable'
     67 
     68     // You can print out the seeds that are matching the keep options below.
     69 
     70     //printseeds 'out.seeds'
     71 
     72     // Preserve all public midlets.
     73 
     74     keep 'public class * extends javax.microedition.midlet.MIDlet'
     75 
     76     // Preserve all native method names and the names of their classes.
     77 
     78     keepclasseswithmembernames includedescriptorclasses:true, 'class * { \
     79         native <methods>; \
     80     }'
     81 
     82     // Your midlet may contain more items that need to be preserved; 
     83     // typically classes that are dynamically created using Class.forName:
     84 
     85     // keep 'public class mypackage.MyClass'
     86     // keep 'public interface mypackage.MyInterface'
     87     // keep 'public class * implements mypackage.MyInterface'
     88 }
     89