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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Tiered attribution for javac [JEP 215]

JEP 215 represents an impressive undertaking to streamline javac's type checking schema. Let's first review how type checking works in Java 8; then we will explore the changes in Java 9.

In Java 8, type checking of poly expressions is handled by a speculative attribution tool.

Speculative attribution is a method of type checking as part of javac's compilation process. It has a significant processing overhead.

Using the speculative attribution approach to type checking is accurate, but lacks efficiency. These checks include argument position, and are exponentially slower when testing in the midst of recursion, polymorphism, nested loops, and lambda expressions. So the goal with JEP 215 was to change the ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page