Following test throws AssertionError with JDK-25 while it was passing with JDK-24.

public class reduction_loop {

    public static short [] arr = { 15318, 15320, -1024, 15324, 15325, 15327, 15328, 15329 };

    public static int ITER = 10000;

    public static long GOLDEN = ADDReduceLong();

    static long ADDReduceLong() {
        short res = 0;
        for (int i = 0; i < 8; i++) {
            res = Float.floatToFloat16(Float.float16ToFloat(res) + Float.float16ToFloat(arr[i]));
        }
        return (long)res;
    }

    public static void main(String [] args) {
        long res = 0;
        for (int i = 0; i < ITER; i++) {
            res += ADDReduceLong();
        }

        if ((GOLDEN * ITER) != res) {
            throw new AssertionError("Incorrect result, " + GOLDEN + " != " + res);
        }
        System.out.println("PASS");
    }
}


EMR>which java
/usr/lib/jvm/java-24-openjdk-amd64//bin/java
EMR>java -Xbatch -XX:-TieredCompilation --add-modules=jdk.incubator.vector -cp . reduction_loop
WARNING: Using incubator modules: jdk.incubator.vector
PASS
EMR>
EMR>export JAVA_HOME=/home/jatin_bhateja/softwares/jdk-25/
EMR>export PATH=$JAVA_HOME/bin:$PATH
EMR>which java
/home/jatin_bhateja/softwares/jdk-25//bin/java
EMR>
EMR>
EMR>java -Xbatch -XX:-TieredCompilation --add-modules=jdk.incubator.vector -cp . reduction_loop
WARNING: Using incubator modules: jdk.incubator.vector
Exception in thread "main" java.lang.AssertionError: Incorrect result, -1024 != 544587776
        at reduction_loop.main(reduction_loop.java:25)