multithreading - How to "try start" one thread from several other threads, java -

i wrote in function:

if(mythread.isalive()) { } else { mythread.start(); } 

but unsafe if many threads call function same time. start running thread throws exception.

so except putting try-catch around it, have other options?

make method synchronized. also, check (isalive()) unsafe because if thread have been finished cannot start again (and isalive() return false...)