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I have a method in java

Public Object someMethod (String param) ( //some calculations Return Object )

I want to test the performance of this method ( how much time would it take to reach to db and return an object ) How can I do this? I don't have a main method because its a library. I use unit tests to check if it works. Help.

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I would use JMH, which is an excellent framework for doing microbenchmarks

http://openjdk.java.net/projects/code-tools/jmh/

It is used all the time by engineers that develops the JDK.

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