Dev tools · September 13, 2014
Jarsurgeon – Instrument and rebuild Java programs without source
Instrument and rebuild Java programs without source code - cernekee/jarsurgeon
Jarsurgeon – Instrument and rebuild Java programs without source launched on September 13, 2014 with 20 votes and more than 75% of that year's launches. The site was still online in September 2026, 12 years on.
In plain words
Jarsurgeon is a developer tool that allows users to instrument and rebuild Java programs without access to the original source code. It enables modifications to compiled Java applications by working directly with JAR files. The tool is useful for developers who need to add instrumentation, debugging capabilities, or make changes to Java programs when source code is unavailable.
written from the facts on this page · September 2026
Does a similar job
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Hey HN, I wanted to show you a product a small team and I have been working on for 4 years. https://jam.dev It’s called Jam and it prevents product managers (like I used to be) from being able to create vague and un-reproducible bug tickets (like I used to create). It’s actually really hard as a non-engineer to file useful bug tickets for engineers. Like, sometimes I thought I included a screenshot, but the important information the engineer needed was what was actually right outside the boundary of the screenshot I took. Or I'd write that something "didn't work" but the engineer…


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Source: Show HN post ↗
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