Gradle:如何通过运行 Gradle 4.1 任务通过 Eclipse ECJ(JDT 核心)编译 Java [英] Gradle: How to compile Java by eclipse ECJ (JDT core) by running Gradle 4.1 task

问题描述

我有一个可以通过 eclipse (ECJ) 很好地构建的项目，但是 Oracle javac 无法构建它(某些原因如链接:ecj 和 javac 的区别).我想从 eclipse 移动到由 Gradle 构建，以便 Jenkins 可以运行 Gradle 脚本.但是 Gradle 总是使用 javac 来编译.我使用了插件 'eclipse, eclipse-wtp' 或 library，jdt 对配置 gradle 的依赖，像那样使用 ECJ，但它仍然不使用 ECJ 进行编译:

I have a project that can be build well by eclipse (ECJ) But Oracle javac can't build it (some reasons like in link: the different of ecj and javac). I would like moving from eclipse to build by Gradle, in order to Jenkins can run Gradle script. But Gradle always use javac to compile. I used the plugins 'eclipse, eclipse-wtp' or library, dependency of jdt to config gradle use ECJ like that but it still don't use ECJ to compile:

compileJava{   
    options.forkOptions.with {
    executable = 'java'
    jvmArgs = ['-classpath','_mylibary_jdt_jar']
    }
}

问题:我不知道使用 Eclipse Compiler (ECJ) 运行 gradle 4.1 任务以编译我期望的类的方式(没有文档，有些方式但已过期或不正确).

The problem: I don't know the way (no document, some ways but expired with old gradle or incorrect) gradle 4.1 run task with Eclipse Compiler (ECJ) to compile the classes I expected.

注意:当我用 javac 构建时出现这个错误:与 javac 不兼容的类型.我想通过 ECJ 的 task gradle 运行良好.

Note : This error when I built by javac: incompatible type with javac . I want to run well by task gradle with ECJ.

推荐答案

将此添加到 gradle 构建脚本对我有用:

Adding this to the gradle build script worked for me:

configurations {
    ecj
}
dependencies {
    ecj 'org.eclipse.jdt:ecj:3.25.0'
}

compileJava {
    options.fork = true
    options.forkOptions.with {
    executable = 'java'
    jvmArgs = ['-classpath', project.configurations.ecj.asPath, 'org.eclipse.jdt.internal.compiler.batch.Main', '-nowarn']
    }
}

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