A graveness bug of jsf!!! to jsf developer!!!!!

i write a jsp constituted by jsf components,i not specified id of some components,such as a output_text ,and debug found that jsf not create id for
this UIoutput component,the getComponentId() of this UIoutput return null!!
this result in some oddness thing..

i think it would be more logical that the id attribute is required for all components.

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