What the difference between -Xss and -XX:ThreadStackSize is?

[Huang Yifei]

Rencently, i have found another JVM option -XX:ThreadStackSize to set
thread stack size in java, but who can tell me what the difference
between -Xss and -XX:ThreadStackSize in java?

By the way,  I also want to know whether the java thread stack is
equivalent to the native thread stack?

Oscar Huang
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