November 2017
Intermediate to advanced
398 pages
10h 14m
English
Content preview from Java 9 High Performance
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java.lang.OutOfMemoryError: request size bytes for reason
If you are not new to computers, you may already know what swap space is. It is a space used by the underlying operating system to store the contents in lieu of RAM in case it fills up. Every time you start your application, JVM allocates the appropriate amount of memory to all the regions depending on your VM parameter. This means, your application has an upper limit for the memory it can use. Hence, if your application happens to request more memory than the allocated limit, the operating system uses the swap space from the hard drive as a virtual memory. If the swap memory space is also fully consumed, JVM throws the error java.lang.OutOfMemoryError: request size bytes for reason ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.