Is workflow execution or activity working as a thread-safe ?
I think a workflow/activity is only thread-safe if you implemented it that way. Temporal could schedule your workflows/activities on seperate workers, which could help surface concurrency-related bugs, but it’s ultimately on you to implement thread-safety into your program.
Workflow code is already thread-safe, and the use of standard Java thread safety primitives is prohibited in the workflow code.
Activity implementation must be thread-safe as it can be called by multiple threads simultaneously.
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