Java Scala repl 抛出错误
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Scala repl throws error
提问by ajay
When I type scalaon the terminal to start the repl, it throws this error
当我scala在终端上键入以启动 repl 时，它会引发此错误
scala> [init] error: error while loading AnnotatedElement,
class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
(java/lang/reflect/AnnotatedElement.class)'
is broken (bad constant pool tag 15 at byte 2713)
When I hit enterand type println("hello, world"), it again throws this
当我点击enter并输入时println("hello, world")，它再次抛出这个
error: error while loading CharSequence,
class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
(java/lang/CharSequence.class)' is broken
(bad constant pool tag 15 at byte 1501)
I am using Ubuntu 14.04and java -versiongives
我正在使用Ubuntu 14.04并java -version提供
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
采纳答案by om-nom-nom
Either update to a newer scala version (2.10.3+) or downgrade java to java 6/7. As you have seen in the output, 2.9.2 was here long before java 8 was introduced (Copyright 2002-2011, LAMP/EPFL), so they don't work well together.
更新到较新的 scala 版本 (2.10.3+) 或将 java 降级到 java 6/7。正如您在输出中看到的，2.9.2 早在引入 Java 8 之前就已经存在 ( Copyright 2002-2011, LAMP/EPFL)，因此它们不能很好地协同工作。
This duplicate questioncontains exact instructions on ubuntu's java downgrade.
这个重复的问题包含有关 ubuntu 的 java 降级的确切说明。
回答by Rakesh Sharma
You might have to run it with JDK 7 or 6
您可能必须使用 JDK 7 或 6 运行它
回答by Hafiz Shehbaz Ali
remove the scala 2.9.2 using terminal
使用终端删除 scala 2.9.2
sudo apt-get remove scala
download the latest scala from scala website
从Scala 网站下载最新的 Scala
Installation instruction are giving on this link
安装说明在这个链接上给出
回答by Sabi
Downgrading JDK version to 7 solved this issue for me. Here is the solution: https://askubuntu.com/questions/761127/how-do-i-install-openjdk-7-on-ubuntu-16-04-or-higher
将 JDK 版本降级到 7 为我解决了这个问题。这是解决方案：https: //askubuntu.com/questions/761127/how-do-i-install-openjdk-7-on-ubuntu-16-04-or-higher
