November 2017
Intermediate to advanced
398 pages
10h 14m
English
Content preview from Java 9 High Performance
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Invokedynamic
The invokedynamic feature is the most notable feature in the history of Java. Rather than having a limit to JVM bytecode, we now can define our own way for operations to work. So what is inovkedynamic? In simple terms, it is the user-definable bytecode. This bytecode (instead of JVM) determines the execution and optimization strategies. It offers various method pointers and adapters which are in the form of method handling APIs. The JVM then work on the pointers given in the bytecode and use reflection-like method pointers to optimize it. This way, you, as a developer, can get full control over the execution and optimization of code.
It is essentially a mix of user-defined bytecode (which is known as bytecode + bootstrap ) and ...