Parellel SDK Call back

[Fxe]

SDK callback ran in parallel might cause race conditions if they are re-using the same container.

Needs testing's.

Use BAKTA module to test:

• Write/Append random content on temp file for each run
• Print the contents of temp file at begin and end of method
• Check if the there is incremental additions

[Fxe]

Added a print a the begin of the app to display contents in /tmp and a print at the end. When SDK Call back is ran multiple times the folder gets reset. The container does not look to be reused per call.