Passing "-J-Duser.language" to gradle doesn't work

Question

I want to have english messages when compiling.

After this post and this , I added the following to mybuild.gradle

compileJava {
  options.compilerArgs << '-J-Duser.language=en'
  options.fork = true
  options.forkOptions.executable = 'javac'
}

But I get ([] my translation, not the official one)

javac: 无效的标记[invalid flags]:  -J-Duser.language=en
用法[usage]: javac <options> <source files>
-help 用于列出可能的选项[for possible options]

In cmd

simple javac -J-Duser.language=en

really gives me english messages.

My question is:

+3

zjk 13 Sep 14 at 11:45

1 answer

Peter Niederwieser · Accepted Answer · 2014-09-13T18:08:05+0000

Instead of using, -J

you need to pass a flag options.forkOptions.jvmArgs

:

tasks.withType(JavaCompile) {
    options.fork = true
    options.forkOptions.jvmArgs += ["-Duser.language=en"]
}