Re: servlet reference and thread safe
"...the instance , static variables used in a servlet reference
object are not thread safe..."
why instance variables are not thread safe ?
say i have
class MyServlet extends HttpServlet
How , this x,y cant be thraed safe ?
seperate instance will have there own copy and hence they are not
going to be mixed up in multithreading enviornment.
so, these variables are thread safe .
could you please explain ...why that statement is correct ?
this x,y cant be thraed safe ?
No. They can't be, unless their accesses are synchronized.
Only local variables in methods are thread safe because local variables
are allocated on the stack per each call.
if i make synchronized setter/getter methods to access those instance
variables , will that be thread safe now ?
Or, if the referenced objects are threadsafe (String objects are), then
you can use AtomicReference.
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