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How Does Java 8\'s Type Inference Handle Comparator Ambiguity in Chained Comparisons?

Linda Hamilton
Linda HamiltonOriginal
2024-11-27 16:38:19851browse

How Does Java 8's Type Inference Handle Comparator Ambiguity in Chained Comparisons?

Java 8 Comparator Type Inference Enigma

Regarding the perplexing type inference behavior you've encountered with Java 8 Comparators, here's a detailed explanation:

Context-Sensitivity of Poly Expressions

Lambda expressions and generic method invocations are poly expressions, meaning their type is context-dependent. However, this context-sensitivity differs between their roles as method parameters and method receiver expressions.

Ambiguity with Chained Comparisons

When you invoke a method as a method parameter, such as in:

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