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java - JVM option -Xss - What does it do exactly?

It says here that -Xss is used to "set thread stack size", what does it mean exactly? Could anyone help me understand this?

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Each thread in a Java application has its own stack. The stack is used to hold return addresses, function/method call arguments, etc. So if a thread tends to process large structures via recursive algorithms, it may need a large stack for all those return addresses and such. With the Sun JVM, you can set that size via that parameter.


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