Re: user manual code example race condition

On Mar 11, 2019, at 06:38, dingd <ntysdd@qq.com> wrote:

this is recommended in the manual, it contains a race condition.

Interpreter interpreter = Interpreter.getInstance (); if ( interpreter == null ) { interpreter = Interpreter.createInstance (); }

getInstance and createInstance should be swapped.

Since both Interpreter.getInstance() and Interpreter.createInstance() are methods synchronized on the same object monitor, I don’t see that there is a race condition here. Could you explain a little more about your reasoning and/or experience with the race condition? -- "A screaming comes across the sky. It has happened before but there is nothing to compare to it now."