Compact Strings example in Java

README.md

jbang run --java-options="-XX:-CompactStrings" https://gist.github.com/misTrasteos/64ede08830ecc474b8bdffbbf9e9ccc4#file-compactstringsexample-java

jbang run --java-options="-XX:+CompactStrings" https://gist.github.com/misTrasteos/64ede08830ecc474b8bdffbbf9e9ccc4#file-compactstringsexample-java

Using Compact String allow more object allocation as their size is smaller

CompactStringsExample.java

///usr/bin/env jbang "$0" "$@" ; exit $?

//DEPS org.apache.commons:commons-lang3:3.12.0

//JAVA_OPTIONS -Xms128m -Xmx128m
//JAVA_OPTIONS -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC
//JAVA_OPTIONS -XX:+HeapDumpOnOutOfMemoryError

import org.apache.commons.lang3.RandomStringUtils;

import java.util.List;
import java.util.LinkedList;

public class CompactStringsExample {
    
    public static void main(String... args) {
        List<String> strings = new LinkedList<String>();

        while( args.length >= 0 )
            strings.add( RandomStringUtils.randomAlphanumeric( 1_000 ) );
        
        System.out.println( strings.size() );
    }
}