Hi. Suppose that I have a method called doSomething() and I want to use this method in a multithreaded application (each servlet inherits from HttpServlet).I'm wondering if it is possible that a race condition will occur in the following cases:

1. doSomething() is not staic method and it writes values to a database.
2. doSomething() is static method but it does not write values to a database.

what I have noticed that many methods in my application may lead to a race condition or dirty read/write. for example , I have a Poll System , and for each voting operation, a certain method will change a single cell value for that poll as the following:

[poll_id |              poll_data        ]
[1       | {choice_1 : 10, choice_2 : 20}]

will the JSP/Servlets app solve these issues by itself, or I have to solve all that by myself?

Thanks..