Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/1840#discussion_r57900102
--- Diff:
flink-core/src/main/java/org/apache/flink/api/java/typeutils/TypeExtractor.java
---
@@ -291,12 +347,15 @@ protected TypeExtractor() {
// parameters must be accessed from behind,
since JVM can add additional parameters e.g. when using local variables inside
lambda function
final int paramLen =
m.getGenericParameterTypes().length - 1;
- final Type input = (hasCollector)?
m.getGenericParameterTypes()[paramLen - 1] :
m.getGenericParameterTypes()[paramLen];
-
validateInputType((hasIterable)?removeGenericWrapper(input) : input, inType);
+ final Type input = (outputTypeArgumentIndex >=
0) ? m.getGenericParameterTypes()[paramLen - 1] :
m.getGenericParameterTypes()[paramLen];
+ validateInputType((inputTypeArgumentIndex >= 0)
? extractTypeArgument(input, inputTypeArgumentIndex) : input, inType);
if(function instanceof ResultTypeQueryable) {
return ((ResultTypeQueryable<OUT>)
function).getProducedType();
}
- return new
TypeExtractor().privateCreateTypeInfo((hasCollector)?
removeGenericWrapper(m.getGenericParameterTypes()[paramLen]) :
m.getGenericReturnType(), inType, null);
+ return new
TypeExtractor().privateCreateTypeInfo((
+ outputTypeArgumentIndex >= 0)?
extractTypeArgument(m.getGenericParameterTypes()[paramLen],
outputTypeArgumentIndex) : m.getGenericReturnType(),
--- End diff --
Good catch. Will fix it.
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