Cycle in Eclipse

If I open two Java projects in Eclipse which depend on each other, I have to add dependencies between these two projects in the Build Path (Properties -> Java build path). This works fine for one way, but why doesn't allow Eclipse t开发者_如何转开发o set the dependencies vice versa? The following error message occurs:

A cycle was detected in the build path of project 'A'

and

A cycle was detected in the build path of project 'B'

I know what's causing this error but i wonder why exactly this isn't allowed. Thanks.

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Well, if you need to have a cycle you can allow it by changing from error to warning in Window->Preferences->Java->Compiler->Building->Build path problems -> Circular dependencies.

But I still think that is a bad desing.

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That type of circular reference can't be resolved. A needs B to run and B needs A to run. But having cycles between projects like this is a bad thing. If they both depend on each other, then they probably shouldn't be separate projects since they can't be deployed separately anyway.

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Changing preference in Eclipse does not help in my case.

The best solution seems to combine two projects into one.