SpaceIshtar

add coarse-grained-lock pattern

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## In this pull request * Add the coarse-grained-lock pattern * This is related to the issue https://github.com/iluwatar/java-design-patterns/issues/1289 ## Pull request description * Implement the design pattern according to the...

Add data transfer hash pattern

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Pull request title - Add data transfer hash pattern - Include changes in https://github.com/iluwatar/java-design-patterns/pull/1969 to pass the CI test - This is to solve the issue https://github.com/iluwatar/java-design-patterns/issues/1269 Pull request description...