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Asked: 2026-05-11T01:07:21+00:00

I am a .NET dev learning Java. As a result, I understand all the

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I am a .NET dev learning Java. As a result, I understand all the fundamentals of programming like loops, variables, functions, etc. My biggest bottleneck is that I don’t know my way around Java’s packages like I do with .NET’s.

This is the reason for this thread – where do I find the following functionality in Java?:

System.Diagnostics – where can I use things like stopwatch, programmatic breakpoints and loggers?

Is there a Java equivalent of .NET performance counters?

What are weak keys in Java? I just came across a collection which uses weak keys in Java so am asking here. 🙂

Thanks

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  1. JAMon is one possible open-source Java Monitoring library that might fit your requirements.

    In addition, any performance/management counters are exposed through Java Management Extensions (JMX)

    Then you have a number of monitoring consoles:

    • jconsole comes with bundled with the Java installation (Swing based)
    • MC4J open-source console (Swing based)
    • eclipse-jmx console within Eclipse (SWT based)
    • Most application servers will come with a web-based JMX console (eg: JBoss)

    Alternatively, take a look at this other posting for ideas on how to monitor JMX statistics in Perfmon.

    Hope this helps.

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