List/Grid Tag Archives: Debugging

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Write an auto-debugger to catch Exceptions during test execution

Previously I have stated that there are some exceptions you would always want to keep an debugger breakpoint on for. This help prevents code rotting away without you noticing – sometimes masking a different problem. If you t ...
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Hunting a Random Bug – A True Story

A few weeks ago, I finished a bug hunt for the RapidFTR open source project, which took me three evenings. I thought it might be worth sharing the story of the hunt. This article will describe what I did. I will give an overview o ...
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Fixing Bugs that can’t be Reproduced

There are bugs that can’t be reproduced, or at least not easily: intermittent and transient errors; bugs that disappear when you try to look for them; bugs that occur as the result of a long chain of independent operations or cr ...
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Bug Fixing – to Estimate, or not to Estimate, that is the question

According to Steve McConnell in Code Complete (data from 1975-1992) most bugs don’t take long to fix. About 85% of errors can be fixed in less than a few hours. Some more can be fixed in a few hours to a few days. But the rest t ...
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Fixing Bugs – if you can’t reproduce them, you can’t fix them

‘Generally, if you can’t reproduce it, it’s almost impossible to fix’. Anonymous programmer, Practices of Software Maintenance, Janice Singer Fixing a problem usually start ...
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Debugging the JVM

In some (rare) cases you might find yourself in the situation that you managed to crash the JVM itself. I most recently managed this by setting the name of a ThreadGroup to null. In these cases it is useful to debug the JVM itself ...
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How to solve production problems

At my job, I’m finding that a large percentage of the questions that come to my desk are “Hey this thing you did is broken” or “Hey, this thing you worked with is on the fritz.” 99% of the time, I’d have no idea why th ...
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Debugging a Production Server – Eclipse and JBoss showcase

Do you write code that has bugs? No, of course not. For the rest of us, mere mortals, who do write code with bugs, I would like to address a very sensitive issue: debugging an application that runs on a production server. So, your ...
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