Github user dawidwys commented on a diff in the pull request:
https://github.com/apache/flink/pull/6120#discussion_r201657797
--- Diff:
flink-core/src/main/java/org/apache/flink/api/java/typeutils/TypeExtractor.java
---
@@ -695,29 +678,14 @@ private static void registerFactory(Type t, Class<?
extends TypeInfoFactory> fac
Preconditions.checkArgument(
lambdaOutputTypeArgumentIndices != null,
"Indices for output type arguments
within lambda not provided");
- // check for lambda type erasure
- validateLambdaGenericParameters(exec);
final Method sam =
TypeExtractionUtils.getSingleAbstractMethod(baseClass);
final int baseParametersLen =
sam.getParameterTypes().length;
// parameters must be accessed from behind,
since JVM can add additional parameters e.g. when using local variables inside
lambda function
final int paramLen =
exec.getParameterTypes().length;
- final Type input1 =
TypeExtractionUtils.extractTypeFromLambda(
--- End diff --
Same comments as above. Why don't check the input types, if not checking
them the lambda input indices not necessary.
---
