- compiler.note.incubating.modules: jdk.incubator.mvt CheckNullCastable.java:10:54: compiler.warn.prob.found.req: (compiler.misc.inconvertible.types: compiler.misc.type.null, CheckNullCastable) CheckNullCastable.java:11:17: compiler.warn.incomparable.types: CheckNullCastable, compiler.misc.type.null CheckNullCastable.java:11:17: compiler.warn.value.does.not.support: != CheckNullCastable.java:12:18: compiler.warn.incomparable.types: compiler.misc.type.null, CheckNullCastable CheckNullCastable.java:12:18: compiler.warn.value.does.not.support: != - compiler.err.warnings.and.werror 1 error 5 warnings