maven-shade-plugin：maven 如何在不同的 jar 中遮蔽相同的类？

Question

If my project depends on two jars, A and B, which both in turns depends on class foo.bar.FooBar. But they includes different versions of FooBar in their jars, and only work with that specific version, eg A depends on FooBar v1, B depends on FooBar v3.

Then when the shade plugin merges A and B into the final fat jar, how maven relocates them to ensure A and B both work?

Answer 1

This means you need a shaded version of both A and B first, both with their own relocated version of foo.bar.FooBar . Only this way A will be "recompiled" with its own FooBar version, and so is B. After that you can create a fat jar.