问题
When I type scala on the terminal to start the repl, it throws this error
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 enter and type println("hello, world"), it again throws this
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 14.04 and java -version gives
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)
回答1:
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.
This duplicate question contains exact instructions on ubuntu's java downgrade.
回答2:
remove the scala 2.9.2 using terminal
sudo apt-get remove scala
download the latest scala from scala website
Installation instruction are giving on this link
回答3:
You might have to run it with JDK 7 or 6
回答4:
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
来源：https://stackoverflow.com/questions/24517761/scala-repl-throws-error