scala – 无法初始化编译器：找不到编译器镜像中的对象java.lang

$ls ~/Binary/scala-2.11.8
bin  doc  lib  man
$grep -A 2 SCALA ~/.bashrc
SCALA=~/Binary/scala-2.11.8
SBT=~/Binary/sbt
export PATH=$PATH:$SCALA/bin:$SBT/bin

安装openjdk8后,scala在打开REPL时失败：

$javac -version
javac 1.8.0_91
$
$scala
Welcome to Scala 2.11.8 (OpenJDK 64-Bit Server VM,Java 9-internal).
Type in expressions for evaluation. Or try :help.
scala> 
Failed to initialize compiler: object java.lang.Object in compiler mirror not found.
** Note that as of 2.8 scala does not assume use of the java classpath.
** For the old behavior pass -usejavacp to scala,or if using a Settings
** object programmatically,settings.usejavacp.value = true.

Failed to initialize compiler: object java.lang.Object in compiler mirror not found.
** Note that as of 2.8 scala does not assume use of the java classpath.
** For the old behavior pass -usejavacp to scala,settings.usejavacp.value = true.

我该如何解决？