bug687.check

来自「JAVA 语言的函数式编程扩展」· CHECK 代码 · 共 11 行

nsc> 
nsc> bug687/QueryB.scala:3: error: name clash between defined and inherited member:
method equals:(java.lang.Object)Boolean and
method equals:(Any)Boolean in class Any
have same type after erasure: (java.lang.Object)Boolean
  override def equals(o : Object) = false;
               ^

nsc> 
nsc>