ADDITIONAL SYSTEM INFORMATION :
macOs (aarch64), Linux (x86_64) and certainly Windows

A DESCRIPTION OF THE PROBLEM :
Oracle Java 1.8u471, and not OpenJDK 1.8 u471, suffer from a bug when reading parameters via reflection (`Exceutable::getParameters`).

There was an existing bug https://bugs.openjdk.org/browse/JDK-8058322, and an existing report for the same problem https://bugs.openjdk.org/browse/JDK-8341145 whioch is due to better adherence to JVMS in Java 21 https://bugs.openjdk.org/browse/JDK-8292275.

JDK-8058322 received a backport fix https://git.openjdk.org/jdk8u/pull/63. So this is indeed fixed in OpenJDK distributions of 1.8, however Oracle Java do not seem to have received this patch.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Basically, I created a reproducer project here : https://github.com/bric3/malformed-parameters-oracle-8

But basically take this code, compile it with JDK 21 compiler with `--release 8`, then run it on Oracle Java 1.8, and to compare on another openjdk distribution.


---------- BEGIN SOURCE ----------
public class Reproducer {

    /** Public to ease code-generation. Not meant to be used out of the parent class. */
    public interface MyGenericConsumer<T> {
        void accept(T arg);
    }

    /** Public to ease code-generation. Not meant to be used out of the parent class. */
    public static class DefaultRunnableConsumer implements MyGenericConsumer<Runnable> {
        @Override
        public void accept(final Runnable runnable) {
            runnable.run();
        }
    }

    public static void main(String[] args) throws NoSuchMethodException {
        // Fails on synthetic method on Oracle 8 u471
        Reproducer.DefaultRunnableConsumer.class.getDeclaredMethod("accept", Object.class).getParameters();
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
There are several : using a previous JDK to compile, using `-parameters` on the compiler but this adds too much additional and useless data for some constrained environments.

FREQUENCY :
ALWAYS