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Using Compact Strings

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Azul Platform Prime supports JEP 254, the compact strings optimization.

The compact strings feature of the Azul Platform Prime lowers memory footprint, improves performance of string-intensive applications, and reduces time spent on garbage collection.

To enable or disable the feature, use the following option:

Compact strings change internal representation of all strings from char[] to byte[], and changes the String class layout. If your application accesses java.lang.String fields via reflection or is unsafe, you may observe incorrect application behavior.