Clarify BeanFactory#containsBean Javadoc [SPR-8690]

[spring-projects-issues]

Michal Bachman opened SPR-8690 and commented

The JavaDoc for BeanFactory.containsBean says "is {@link #getBean} able to obtain a bean instance for the given name?". For Beans declared abstract, the containsBean method returns true, but getBean can't obtain the bean, resulting in BeanIsAbstractException.

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Referenced from: commits 10be0ef

[spring-projects-issues]

Chris Beams commented

commit f1dd0ecf2e0a34964a62244f024eedc7fd1bdf22 (HEAD, trunk, master)
Author: Chris Beams <cbeams@vmware.com>
Date:   Tue Sep 13 22:09:12 2011 +0000

    Clarify BeanFactory#containsBean Javadoc
    
    Previously, #containsBean Javadoc advertised that a true return value
    indicates that a call to #getBean for the same name would succeed.
    
    This is actually not the case, and has never been.  The semantics
    of #containsBean have always been to indicate whether a bean definition
    with the given name is definied or a singleton instance with the given
    name has been registered.
    
    The Javadoc now reflects this accurately.
    
    Issue: SPR-8690