Java — what is changing around mistakes and lessons?

forest_tom

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Sep 5, 2026
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I wanted to start a broader mistakes and lessons thread around Java.

A useful angle is deployment, but it also connects with testing. Different tools and workflows can produce very different results even when the goal is similar.

It would be interesting to compare practical examples, experiments, setups, or lessons that show where Java is genuinely useful and where it still needs improvement.