NameValueGenerator is not thread safeDescriptionThis is a multithreading issue caused by the JSON Builder step. When executing many asynchronous JSON Builder steps across multiple different threads, several fields in the respective operation class, which are declared as static, will overwrite one another inevitably causing a NullPointerException. The exception will cause a failure in the action and all subsequent steps or actions will halt. Steps to Reproduce Install integrationhub enterprise packEnsure Flow reporting is enabled, set to full or traceOpen flow designer and create a new actionAdd the JSON Builder step, utilize the step and give it some example dataSave and publish the actionCreate a code snippet of the action and paste it somewhere to be executed such as Background - ScriptsLoop the execution of the script 100 timesOpen the executions page in flow designer and notice that several executions have a failure of NPEWorkaroundThere is currently no workaround, hence we backported the fix to Xanadu Patch 3 and Washington Patch 9. Related Problem: PRB1812060