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ThreadLocal

 
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Can anyone please tell me the significance of ThreadLocal class ? i.e. as per the application point of view
 
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Have a look at:

http://www-128.ibm.com/developerworks/java/library/j-threads3.html
 
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Some people find it helpful to conceptualise a thread local as being an associative type that is keyed by the type Thread. Simply, a Map<Thread, T>. The analogy is quite useful and not dangerous (i.e. there is little opportunity to be misled).
 
Don't get me started about those stupid light bulbs.
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