presto-plugin-toolkit/src/main/java/io/prestosql/plugin/base/jmx/RebindSafeMBeanServer.java/RebindSafeMBeanServer/getClassLoaderFor
class RebindSafeMBeanServer:    @Override
    public ClassLoader getClassLoaderFor(ObjectName mbeanName)
            throws InstanceNotFoundException
    {
        return mbeanServer.getClassLoaderFor(mbeanName);
    }