spring entity concurrency control while persisting into database -

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i trying control concurrent access same object in spring+jpa configuration. example, have entity named a. multiple processes updating same object of a. using versioning field controlling here issue: example 2 processes reads same entity (a) having version=1. 1 process update entity , version gets incremented. when 2nd process tries persist object, optimistic lock exception thrown. using spring services , repository access objects. please me here?

what's problem then? that's how it's supposed work.

you can catch jpaoptimisticlockingfailureexception , decide there.

this, example, give validation error message on spring mvc form:

... if(!bindingresult.haserrors()) {   try {     foorepository.save(foo);   } catch (jpaoptimisticlockingfailureexception exp){       bindingresult.reject("", "this record modified user. try refreshing page.");     } } ...

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