Seen in GHA as well:

$ CONF=linux-x86-server-fastdebug make test TEST=jdk/incubator/vector/ShortMaxVectorTests.java

...

test ShortMaxVectorTests.sliceShortMaxVectorTestsMasked(short[-i * 5], short[i * 5], mask[true]): failure
java.lang.AssertionError: arrays differ firstly at element [16]; expected value is <10> but was <0>. (ref: [-90, -95, -100, -105, -110, -115, -120, -125, -130, -135, -140, -145, -150, -155, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85], res: [-90, -95, -100, -105, -110, -115, -120, -125, -130, -135, -140, -145, -150, -155, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]), at index #0, at origin #18
at org.testng.Assert.fail(Assert.java:99)
at org.testng.Assert.assertEquals(Assert.java:275)
at ShortMaxVectorTests.assertArraysEquals(ShortMaxVectorTests.java:854)
at ShortMaxVectorTests.sliceShortMaxVectorTestsMasked(ShortMaxVectorTests.java:4812)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)


Bisect points to JDK-8304450.