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Can't build project when building for Java instead of Kotlin with Gradle #461

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Mareng98 opened this issue Jan 18, 2025 · 0 comments
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@Mareng98
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Mareng98 commented Jan 18, 2025

I included this code at the top of the file:

buildscript {
  repositories {
    mavenCentral()
  }
  dependencies {
    classpath 'com.guardsquare:proguard-gradle:7.6.1'
  }
}

I included this code after the plugins and dependencies:

tasks.register('proguard', ProGuardTask) {
  configuration file('proguard.pro')

  injars(tasks.named('jar', Jar).flatMap { it.archiveFile })

  // Automatically handle the Java version of this build.
  if (System.getProperty('java.version').startsWith('1.')) {
    // Before Java 9, the runtime classes were packaged in a single jar file.
    libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
  } else {
    // As of Java 9, the runtime classes are packaged in modular jmod files.
    libraryjars "${System.getProperty('java.home')}/jmods/java.base.jmod", jarfilter: '!**.jar', filter: '!module-info.class'
    //libraryjars "${System.getProperty('java.home')}/jmods/....."
  }

  verbose

  outjars(layout.buildDirectory.file("libs/${baseCoordinates}-minified.jar"))
}

And when reloading the build.gradle I get this error:

Build file 'D:\MasterThesis\testSubjects\proguard\spring-petclinic-main\build.gradle' line: 72

A problem occurred evaluating root project 'spring-petclinic'.
> Could not get unknown property 'ProGuardTask' for root project 'spring-petclinic' of type org.gradle.api.Project.

Also there doesn't seem to be any instructions on how to use it for pure Java projects. Is it not possible to use Proguard for non-android applications?

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