The number of Thread instance names starts with 3

[weucode]

Description
When running the following programs, OpenJ9 outputs Thread[Thread-3,5,main] while other JVMs(like Hotspot) output Thread[Thread-0,5,main]. It seems that OpenJ9 executes wrong initialize operation.

Testcase

public class MyJVMTest {
    public static void main(String[] args) throws Exception {
        Runnable runnable = () -> {};
        Thread thread = new Thread(runnable);
        System.out.println(thread);
    }
}

JDK Version
This behavior exist in JDK 8 and 11:

openjdk version "1.8.0_362-internal"
OpenJDK Runtime Environment (build 1.8.0_362-internal-root_2023_01_28_12_10-b00)
Eclipse OpenJ9 VM (build master-6cadc1d9f, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20230128_000000 (JIT enabled, AOT enabled)
OpenJ9   - 6cadc1d9f
OMR      - 4c214a89c
JCL      - 21da58127f based on jdk8u362-b09)

openjdk version "11.0.18-internal"
OpenJDK Runtime Environment (build 11.0.18-internal+0-adhoc.root.openj9-openjdk-jdk11)
Eclipse OpenJ9 VM (build master-6cadc1d9f, JRE 11 Linux amd64-64-Bit Compressed References 20230128_000000 (JIT enabled, AOT enabled)
OpenJ9   - 6cadc1d9f
OMR      - 4c214a89c
JCL      - b399e866bb based on jdk-11.0.18+10)