Threads and native extensions

When coding your Java implementation, consider the following:
  • The runtime can concurrently call an extension context’s FREFunction functions on different threads.

  • The runtime can concurrently call different extension contexts’ FREFunction functions on different threads.

Therefore, code your Java implementations appropriately. For example, if you use global data, protect it with some form of locks.

Note: Your Java implementation can choose to create separate threads. If it does, consider the restrictions specified in FREObject validity .

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