问题描述:

So, i have been using the Java jdb commandline debugger tool lately in a case where i did not want to use a heayweight eclipse. i wanted to dig a little bit deeper in what might be possible that is not supported IDEs.

E.g. i found some intersting command where i was not able to find any documentation of:

read <filename> -- read and execute a command file

What can i do with it?

I am particular interested if i can combine it with "trace" command to maybe "script" what exact methods/data to trace:

trace [go] methods [thread]

-- trace method entries and exits.

-- All threads are suspended unless 'go' is specified

Where i am going with this is: have some way of attach to a program and dynamically define and get some useful/smart traces.

Note that i am not interested in any other tools that might be out there. was just wondering what is possible with the builtin tools of the JDK.

Thanks,

Daniel

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