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Asked: 2026-05-23T18:07:29+00:00

I am loading an external class using a class-loader. I have a custom security

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I am loading an external class using a class-loader. I have a custom security manager that keeps track of what that class is allowed to do. This works fine. However, I would also like to monitor the memory requirements of that class. In particular, I would like to set a limit on the amount of memory this class may use. I am not able to edit the class in question.

If I understand it correctly, the only way to do this is to invoke a separate JVM. How do I do that? Would I need to wrap everything in a Process? The class I need to execute does not have a main method – it is instantiated by the ‘main’ program. The idea is to run the program, then instantiate the external class in question and communicate with the resulting object (calling a selection of methods and passing some objects).

Thanks for your time.

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1 Answer

  1. Editorial Team

    You need to write a short program which has a main, which you can interact with e.g. via Socket/RMI/JMS even Input+OutputStream which will call the library for you.

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