1 CheckNullCastable.java:10:54: compiler.warn.prob.found.req: (compiler.misc.inconvertible.types: compiler.misc.type.null, CheckNullCastable) 2 CheckNullCastable.java:11:17: compiler.warn.incomparable.types: CheckNullCastable, compiler.misc.type.null 3 CheckNullCastable.java:11:17: compiler.warn.value.does.not.support: != 4 CheckNullCastable.java:12:18: compiler.warn.incomparable.types: compiler.misc.type.null, CheckNullCastable 5 CheckNullCastable.java:12:18: compiler.warn.value.does.not.support: != 6 - compiler.err.warnings.and.werror 7 1 error 8 5 warnings