ADDITIONAL SYSTEM INFORMATION :
This is true on Linux and Windows.

A DESCRIPTION OF THE PROBLEM :
If the following command jmap -histo:live <pid> is executed through the JVM (using Process and Runtime API), the JVM of Java 25.0.0+ freezes.

The JVM of Java 21 did not freeze running the exact same code.

REGRESSION - Customer Java Version: 25



REGRESSION : Last worked in version 21.0.9

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the snippet with a JVM 25 (tested on version 25.0.0 and 25.0.1).

---------- BEGIN SOURCE ----------
import java.io.File;
import java.io.IOException;
import java.nio.file.Paths;

public class JmapJava25 {

    static void main() throws IOException, InterruptedException {
        File jmapHome = Paths.get(System.getProperty("java.home"))
                .resolve("bin/jmap")
                .toAbsolutePath()
                .normalize()
                .getParent()
                .toFile();
        new Thread(() ->
        {
            while (true) {
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                System.out.println(System.currentTimeMillis());
            }
        }).start();
        Thread.sleep(5000);
        Runtime.getRuntime().exec(new String[] {"jmap", "-histo:live", ProcessHandle.current().pid() + ""}, null, jmapHome);
    }
}
---------- END SOURCE ----------
FREQUENCY :
ALWAYS