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by prodigal_erik
3487 days ago
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That limitation is healthy. If versions 1.1 and 1.2 of a class exist and I'm foolish and determined enough to use both in the same process (via multiple classloaders), Java will still ensure that I can't accidentally give a 1.1 instance to a callee expecting a 1.2 instance, or vice versa. Version mismatches at call sites fail quickly and loudly with classloading exceptions. I think a hell of a lot of NPM packages only appear to work by accident, and over time they'll fail because of sloppiness about this. |
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