*this* 真的是从 Java 代码启动第二个 JVM 的最佳方式吗?

This is a followup to my own previous question and I'm kind of embarassed to ask this... But anyway: how would you start a second JVM from a standalone Java program in a system-independent way? And without relying on for instance an env variable like JAVA_HOME as that might point to a different JRE than the one that is currently running. I came up with the following code which actually works but feels just a little awkward:

public static void startSecondJVM() throws Exception {
    String separator = System.getProperty("file.separator");
    String classpath = System.getProperty("java.class.path");
    String path = System.getProperty("java.home")
                + separator + "bin" + separator + "java";
    ProcessBuilder processBuilder = 
                new ProcessBuilder(path, "-cp", 
                classpath, 
                AnotherClassWithMainMethod.class.getName());
    Process process = processBuilder.start();
    process.waitFor();
}

此外，当前正在运行的 JVM 可能已使用第二个 JVM 不知道的其他一些参数(-D、-X...、...)启动.