When should i use ThreadLocal?

[rup gupta]

When should i use ThreadLocal? What would I acheive from that? Is there any scenerios where I should use ThreadLocal?

[Jiafan Zhou]

Without using ThreadLocal, each instances of a class is shared among all the threads being provisioned and can easily create some thread issues if that class is not designed as thread safe.

With using ThreadLocal, each thread will create its own instance of that class and isolate that instance from other threads.

When to use:
It is a great utility to use when trying to solve thread issues.
My 2 cents.

[Ulf Dittmer]

Perhaps a better introduction: http://www.ibm.com/developerworks/java/library/j-threads3/index.html

[sean lopez]

I hope this will help you
http://www.javamex.com/tutorials/synchronization_concurrency_thread_local3.shtml