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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

Garbage collection upgrades in Java 8

As of Java 8, the default garbage collection algorithm was the parallel garbage collector. Java 8 was released with some improvements to the G1 garbage collection system. One of these improvements was the ability to use the following command-line option to optimize the heap memory by removing duplicative string values:

-XX:+UseStringDeduplication

The G1 garbage collector can view the character arrays when it sees a string. It then takes the value and stores it with a new, weak reference to the character array. If the G1 garbage collector finds a string with the same hash code, it will compare the two strings with a character-by-character review. If a match is found, both strings end up pointing to the ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page