java - 使用带有gradle的proguard创建混淆的应用程序jar时出现重复的zip条目

Question

Java应用程序本身不包含任何第三方库依赖项。而且，如果我删除了obfuscate任务和jar.finalizedBy(project.tasks.obfuscate)行，则标准jar将生成并可以运行。

错误..

* What went wrong:
Execution failed for task ':obfuscate'.
> java.io.IOException: Can't write [/Users/rob/git/repo/build/libs/tool.out.jar] (Can't read [/Users/rob/git/repo/build/libs/tool.jar] (Duplicate zip entry [com/example/cli/j.class == tool.jar:com/example/cli/HelperUtils$5.class]))

build.gradle ..

task obfuscate(type: proguard.gradle.ProGuardTask) {
    configuration 'proguard.txt'

  injars "build/libs/tool.jar"
  outjars "build/libs/tool.out.jar"
  libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
}

jar {
    archiveName = "tool.jar"
    from sourceSets.main.output.classesDir
    include '**/cli/*.class'
    manifest {
        attributes 'Main-Class': 'com.example.cli.Tool'
    }
}
jar.finalizedBy(project.tasks.obfuscate)

proguard.txt ..

-keep public class com.example.cli.* {*;}

该应用程序包含3个Java类文件。

com.example.cli.Tool (which contains the main)
com.example.cli.HelperUtils
com.example.cli.CustomEnums

Answer 1

在jar任务中添加了以下内容:

jar {
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
    ..
}