Github user rmetzger commented on a diff in the pull request: https://github.com/apache/flink/pull/359#discussion_r24085204 --- Diff: flink-java/src/main/java/org/apache/flink/api/java/typeutils/TypeExtractor.java --- @@ -680,10 +680,20 @@ private static void validateInputType(Type t, TypeInformation<?> inType) { } } - private static void validateInputType(Class<?> baseClass, Class<?> clazz, int inputParamPos, TypeInformation<?> inType) { + private static void validateInputType(Class<?> baseClass, Class<?> clazz, int inputParamPos, TypeInformation<?> inTypeInfo) { ArrayList<Type> typeHierarchy = new ArrayList<Type>(); + + // try to get generic parameter + Type inType; + try { + inType = getParameterType(baseClass, typeHierarchy, clazz, inputParamPos); + } + catch (Exception e) { + return; // skip input validation e.g. for raw types --- End diff -- I know its annoying to change pull requests for these minor changes. If you want you can change it and push it to `master`.
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