WARNING: API 'variant.getJavaCompiler()' is obsolete and has been replaced with 'variant.getJavaCompileProvider()'.
It will be removed at the end of 2019.
For more information, see https://d.android.com/r/tools/task-configuration-avoidance.
To determine what is calling variant.getJavaCompiler(), use -Pandroid.debug.obsoleteApi=true on the command line to display a stack trace.

gradle編譯版本升級(jí)到3.3.2,以后AS中的gradle 中不支持以前的一些腳本命令，所以會(huì)提示以上信息，但還是能編譯成功
解決辦法:
1、將gradle版本降低到3.2.1
2、直接忽略
3、按提示更新api

按提示將getJavaCompiler()更新到getJavaCompileProvider()
修改 app/build.gradle 解決前后對(duì)比：

android.applicationVariants.all { variant ->
    variant.getJavaCompiler().doLast {
        javaexec {
            main = "-jar"
            args = [
                    "xxxxxx.jar",//1.jar路徑
                    variant.applicationId,
                    variant.getJavaCompiler().destinationDir//3.java文件路徑
            ]
        }
    }
}

解決后如下，編譯正常

android.applicationVariants.all { variant ->
    variant.javaCompileProvider.configure {
        def javaPath = it.destinationDir
        println("---------------------------Java路徑-----------------------")
        println("javaPath = " + javaPath)
        it.doLast {
            javaexec {
                main = "-jar"
                args = [
                        "../obfuseSmaliText-master.jar",//1.jar路徑
                        variant.applicationId,
                        javaPath//3.java文件路徑
                ]
            }
        }
    }
}

參考
Gradle Doc 5.5.1