I am starting a project that will require me to create custom tag libraries.
1. Are there any limitations to what can be performed in a tag class?
2. What are recommendations of what I should not do in a tag class?
3. How do I do error handling in a tag class, logging, etc?

Any advice is welcome, thanks in advance.

If you are looking for a project - struts 2.0 framework is the best option.

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