Github user dick-twocows commented on the issue:
https://github.com/apache/jena/pull/233
The ability to try and begin a write transaction exists because;
We needed to run parallel loads i.e. try each child to write and the first
one to return true performs the load, need more parallel spin up more tin/JVMs.
The ability to provide optimistic access, i.e. try to read, if not skip, no
problem we're open world...
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