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safety of bytecode  RSS feed

Arun Martin
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this is a mock exam question.
When a remote class is loaded, how does java (JVM) ensure the bytecode is safe?
* the RMIClassLoader verifies the digital signature of the class
* if the SecurityManager object permits the load it is considered safe
* the RMIClassLoader performs bytecode verification
* remote object stubs use a separate memory space inside the JVM
* the JVM performs bytecode verification

could u please tell me the correct answer?.
Consider Paul's rocket mass heater.
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