如何在java 11中运行scala repl？
如何在java 11中运行scala repl？
提问于 2020-10-06 23:43:38
我已经在我的ubuntu20.04上安装了java 11；
java版本：
$ java -version
penjdk version "11.0.8" 2020-07-14
OpenJDK Runtime Environment (build 11.0.8+10-post-Ubuntu-0ubuntu120.04)
OpenJDK 64-Bit Server VM (build 11.0.8+10-post-Ubuntu-0ubuntu120.04, mixed mode, sharing)scala版本：
$ scala -version
Scala code runner version 2.11.12 -- Copyright 2002-2017, LAMP/EPFL当我尝试运行scala repl时，我得到了错误：
Welcome to Scala 2.11.12 (OpenJDK 64-Bit Server VM, Java 11.0.8).
Type in expressions for evaluation. Or try :help.
Exception in thread "main" java.lang.NoClassDefFoundError: javax/script/Compilable
at scala.tools.nsc.interpreter.ILoop.createInterpreter(ILoop.scala:118)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1$$anonfun$startup$1$1$$anonfun$apply$1.apply(ILoop.scala:971)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1$$anonfun$startup$1$1$$anonfun$apply$1.apply(ILoop.scala:971)
scala> at scala.tools.nsc.interpreter.ILoop.savingReader(ILoop.scala:96)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1$$anonfun$startup$1$1.apply(ILoop.scala:970)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:990)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:891)
at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:891)
at scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:891)
at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:74)
at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
[ERROR] Failed to disable litteral next character
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Object.wait(Object.java:328)
at java.base/java.lang.ProcessImpl.waitFor(ProcessImpl.java:495)
at jline.internal.TerminalLineSettings.waitAndCapture(TerminalLineSettings.java:339)
at jline.internal.TerminalLineSettings.exec(TerminalLineSettings.java:311)
at jline.internal.TerminalLineSettings.stty(TerminalLineSettings.java:282)
at jline.internal.TerminalLineSettings.undef(TerminalLineSettings.java:158)
at jline.UnixTerminal.disableLitteralNextCharacter(UnixTerminal.java:194)
at jline.console.ConsoleReader.readLine(ConsoleReader.java:2450)
at jline.console.ConsoleReader.readLine(ConsoleReader.java:2373)
at jline.console.ConsoleReader.readLine(ConsoleReader.java:2361)
at scala.tools.nsc.interpreter.jline.InteractiveReader.readOneLine(JLineReader.scala:59)
at scala.tools.nsc.interpreter.InteractiveReader$class.readLine(InteractiveReader.scala:38)
at scala.tools.nsc.interpreter.jline.InteractiveReader.readLine(JLineReader.scala:27)
at scala.tools.nsc.interpreter.SplashReader.readLine(InteractiveReader.scala:142)
at scala.tools.nsc.interpreter.SplashLoop.run(InteractiveReader.scala:71)
at java.base/java.lang.Thread.run(Thread.java:834)如果我尝试使用java8 (使用update-alternatives --config java更改版本)运行，它可以工作：
代表：
$ scala
cat: /usr/lib/jvm/java-8-openjdk-amd64/jre/release: Arquivo ou diretório não encontrado
Welcome to Scala 2.11.12 (OpenJDK 64-Bit Server VM, Java 1.8.0_265).
Type in expressions for evaluation. Or try :help.
scala> 我怎样才能让scala repl在java 11上工作？每次在java8和11之间切换时，我还会更改.zshrc文件中的JAVA_HOME。
回答 1
Stack Overflow用户
发布于 2020-10-07 02:01:32
根据Version compatibility table，Scala2.11.12应该与JDK11兼容
## Version compatibility table
| JDK version | Minimum Scala versions | Recommended Scala versions |
|:-----------:|:---------------------------------|:-----------------------------------------------------------|
| 13, 14 | 2.13.2, 2.12.11 | 2.13.3, 2.12.12 |
| 12 | 2.13.1, 2.12.9 | 2.13.3, 2.12.12 |
| 11 | 2.13.0, 2.12.4, 2.11.12 | 2.13.3, 2.12.12, 2.11.12 |
| 8 | 2.13.0, 2.12.0, 2.11.0, 2.10.2 | 2.13.3, 2.12.12, 2.11.12, 2.10.7 |
| 6, 7 | 2.11.0, 2.10.0 | 2.11.12, 2.10.7 |在我的机器上执行
scala --scala-version 2.11.12 -C--jvm=11with scala-runners没有给出错误
➜ ~ scala --scala-version 2.11.12 -C--jvm=11
Welcome to Scala 2.11.12 (OpenJDK 64-Bit Server VM, Java 11.0.7).
Type in expressions for evaluation. Or try :help.
scala> sys.props("java.specification.version")
res0: String = 11
scala> util.Properties.versionString
res1: String = version 2.11.12
scala>注JDK参数指定由coursier下载的-C--jvm=11版本。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64229275
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