first set of changes#4

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Hassenforder wants to merge 3 commits intoultimate-pa:masterfrom

Hassenforder:first_contribution

Commits on Jun 4, 2022

first set of changes
michel-hassenforder
committed

Commits on Jun 7, 2022

removed an error on several runs with the same JRE
michel-hassenforder
committed

Commits on Jun 8, 2022

removes the static START_nt from non_terminal and create a fresh one in
michel-hassenforder
committed