How can context attributes be made thread safe?
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How can context attributes be made thread safe?
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Context attributes are not thread safe, since multiple servlets and hence multiple threads in a Web-app can access these attributes. To make a context attribute thread safe, it is necessary to apply a lock on the context. This is done by synchronizing the ServletContext, so that when a thread holds a lock on the context, no other thread can access it. If any other thread tries to access the context attribute, it has to acquire the lock on the context.
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