spark-shell和scala错误

运行spark-shell 或者scala命令，出现以下错误：

Welcome to Scala version 2.10.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_66).
Type in expressions to have them evaluated.
Type :help for more information.

scala> [init] error: error while loading <root>, error in opening zip file

Failed to initialize compiler: object scala.runtime 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 programatically, settings.usejavacp.value = true.

解决方法：删除下面以点开头的包

cd /usr/lib/jvm/jdk1.8.0_66/jre/lib/ext/

root@ha0:/usr/lib/jvm/jdk1.8.0_66/jre/lib/ext# ls -la

total 25676

drwxrwxr-x  2 501 root      4096 Feb  3 15:49 .

drwxrwxr-x 15 501 root      4096 Feb  3 15:49 ..

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._cldrdata.jar

-rwxrwxr-x  1 501 root   3860522 Oct  7 08:36 cldrdata.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._dnsns.jar

-rwxrwxr-x  1 501 root      8286 Oct  7 08:36 dnsns.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._jaccess.jar

-rwxrwxr-x  1 501 root     44516 Oct  7 08:36 jaccess.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 04:00 ._jfxrt.jar

-rwxrwxr-x  1 501 root  18467564 Oct  7 04:00 jfxrt.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._localedata.jar

-rwxrwxr-x  1 501 root   1178935 Oct  7 08:36 localedata.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:37 ._meta-index

-rwxrwxr-x  1 501 root      1269 Oct  7 08:37 meta-index

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._nashorn.jar

-rwxrwxr-x  1 501 root   2015935 Oct  7 08:36 nashorn.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._sunec.jar

-rwxrwxr-x  1 501 root     39771 Oct  7 08:36 sunec.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._sunjce_provider.jar

-rwxrwxr-x  1 501 root    278680 Oct  7 08:36 sunjce_provider.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._sunpkcs11.jar

-rwxrwxr-x  1 501 root    250826 Oct  7 08:36 sunpkcs11.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:36 ._zipfs.jar

-rwxrwxr-x  1 501 root     68849 Oct  7 08:36 zipfs.jar

root@ha0:/usr/lib/jvm/jdk1.8.0_66/jre/lib/ext# rm ._*.jar

root@ha0:/usr/lib/jvm/jdk1.8.0_66/jre/lib/ext# ls -la

total 25636

drwxrwxr-x  2 501 root      4096 Feb 25 18:01 .

drwxrwxr-x 15 501 root      4096 Feb  3 15:49 ..

-rwxrwxr-x  1 501 root   3860522 Oct  7 08:36 cldrdata.jar

-rwxrwxr-x  1 501 root      8286 Oct  7 08:36 dnsns.jar

-rwxrwxr-x  1 501 root     44516 Oct  7 08:36 jaccess.jar

-rwxrwxr-x  1 501 root  18467564 Oct  7 04:00 jfxrt.jar

-rwxrwxr-x  1 501 root   1178935 Oct  7 08:36 localedata.jar

-rwxrwxr-x  1 501 staff      176 Oct  7 08:37 ._meta-index

-rwxrwxr-x  1 501 root      1269 Oct  7 08:37 meta-index

-rwxrwxr-x  1 501 root   2015935 Oct  7 08:36 nashorn.jar

-rwxrwxr-x  1 501 root     39771 Oct  7 08:36 sunec.jar

-rwxrwxr-x  1 501 root    278680 Oct  7 08:36 sunjce_provider.jar

-rwxrwxr-x  1 501 root    250826 Oct  7 08:36 sunpkcs11.jar

-rwxrwxr-x  1 501 root     68849 Oct  7 08:36 zipfs.jar

root@ha0:/usr/lib/jvm/jdk1.8.0_66/jre/lib/ext# scala