java - 无法识别的选项：-XLoggc：

Question

OpenJDK 不支持该-XLoggc标志吗？我可以使用哪些等效标志？OpenJDK 的标志在哪里记录？

$ cat Hello.java
public class Hello {
        public static void main(String[] args) {
                System.out.println("Hello World");
        }
}
$ javac Hello.java
$ java -XLoggc:gc.log Hello
Unrecognized option: -XLoggc:gc.log
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
$ java -version
java version "1.7.0_147-icedtea"
OpenJDK Runtime Environment (IcedTea7 2.0pre) (7~b147-2.0~pre6-1ubuntu1)
OpenJDK Client VM (build 21.0-b17, mixed mode, sharing)

Answer 1

标志是-Xloggc小写的“l”。