1 CheckNullCastable.java:10:54: compiler.err.prob.found.req: (compiler.misc.inconvertible.types: compiler.misc.type.null, CheckNullCastable)
2 CheckNullCastable.java:11:17: compiler.err.incomparable.types: CheckNullCastable, compiler.misc.type.null
3 CheckNullCastable.java:12:18: compiler.err.incomparable.types: compiler.misc.type.null, CheckNullCastable
4 3 errors