渐变2.3+JUnit 4.11=字符集已损坏

Question

在正常情况下，在正确的字节中写入文件，但与Gradle 2.3+JUnit 4.11一起出现意外结果。

import org.junit.Test;
import java.io.FileOutputStream;
import static org.junit.Assert.*;
public class TestUTF16Test
{
   @Test
   public void testWrite() throws Exception
   {
      try (FileOutputStream bin = new FileOutputStream("testUTF16junit.txt")) {
         bin.write("Русский".getBytes("UTF-16LE"));
      }
   }
}

build.gradle

apply plugin: 'java'
sourceCompatibility = 1.7
version = '1.0'
repositories {
    mavenCentral()
}
dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.11'
}

$gradle.bat:clean:测试

:clean
:compileJavawarning: [options] bootstrap class path not set in conjunction with -source 1.7
1 warning
:processResources UP-TO-DATE
:classes
:compileTestJavawarning: [options] bootstrap class path not set in conjunction with -source 1.7
1 warning
:processTestResources UP-TO-DATE
:testClasses
:test
BUILD SUCCESSFUL
Total time: 4.999 secs

结果：

20 04 A0 00 21 04 53 04 21 04 03 04 21 04 03 04... 28 bytes

但它应该是：

20 04 43 04 41 04 41 04 3A 04 38 04 39 04 = 14 bytes

操作系统：Microsoft Windows 7[版本6.1.7601]

Answer 1

Gradle修复

[ compileJava, compileTestJava ]*.options*.encoding = 'UTF-8'

2015，javac无法识别BOM的Unicode！

>javac.exe srctestjavaTestUTF16Test.java
srctestjavaTestUTF16Test.java:1: error: illegal character: 'u00bb'
я╗┐import org.junit.Test;
 ^
1 error
>javac.exe -version
javac 1.8.0_25

现在我明白了IDE为什么不添加BOM。。。