1 - compiler.note.incubating.modules: jdk.incubator.mvt 2 CheckIdentityHash.java:14:32: compiler.warn.value.does.not.support: identityHashCode 3 CheckIdentityHash.java:15:32: compiler.warn.value.does.not.support: identityHashCode 4 CheckIdentityHash.java:16:42: compiler.warn.value.does.not.support: identityHashCode 5 CheckIdentityHash.java:17:42: compiler.warn.value.does.not.support: identityHashCode 6 - compiler.err.warnings.and.werror 7 1 error 8 4 warnings