November 2022
Intermediate to advanced
704 pages
19h 58m
English
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17 Modern internals
This chapter covers
- Introducing JVM internals
- Reflection internals
- Method handles
- Invokedynamic
- Recent internal changes
- Unsafe
Java’s virtual machine (JVM) is an extremely sophisticated runtime environment that has, for decades, prioritized stability and production-grade engineering. For these reasons, many Java developers have never needed to poke about in the internals, because it is simply not necessary to do so most of the time.
This chapter, on the other hand, is for the curious—the people who would like to know more, who would like to draw back the curtain and see some of the details of how the JVM is implemented. Let’s start with method invocation.
17.1 Introducing JVM internals: Method invocation
To get going, let’s ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.