为什么Scala脚本在设置CLASSPATH或使用-CLASSPATH选项的情况下找不到类

Question

我有以下Scala（2.10.1）脚本：

#!/bin/bash
export CLASSPATH=${WORKSPACE}/build/classes/main:${WORKSPACE}/build/libs/setter-for-catan.jar
exec ${SCALA_HOME}/bin/scala "$0" "$@" 2>&1
!#
import sfc.board.SmallBoard

和：

$ cd ${WORKSPACE}
$ find build/classes/main -name 'SmallBoard*.class'
build/classes/main/sfc/board/SmallBoard$$anonfun$1.class
build/classes/main/sfc/board/SmallBoard$$anonfun$2.class
build/classes/main/sfc/board/SmallBoard$$anonfun$3.class
build/classes/main/sfc/board/SmallBoard$$anonfun$4.class
build/classes/main/sfc/board/SmallBoard$$anonfun$5.class
build/classes/main/sfc/board/SmallBoard$$anonfun$6.class
build/classes/main/sfc/board/SmallBoard$.class
build/classes/main/sfc/board/SmallBoard.class
$ jar tvf build/libs/setter-for-catan.jar | grep SmallBoard
  1272 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$1.class
  1272 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$2.class
  1276 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$3.class
  1581 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$4.class
  1103 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$5.class
  1527 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$$anonfun$6.class
  8097 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard$.class
  3722 Sun Jun 30 20:40:54 EDT 2013 sfc/board/SmallBoard.class

然而，脚本找不到sfc包，更不用说类了：

$ ./setter-for-catan.scala 
./setter-for-catan.scala:10: error: not found: object sfc
import sfc.board.SmallBoard
       ^
one error found

发生了什么，需要做些什么来解决它？

Answer 1

使用scala -cp ${CLASSPATH}，而不是scala -classpath ${CLASSPATH}。