Github user ajs6f commented on the pull request:
https://github.com/apache/jena/commit/8601cd3028c0e57dbc805efc5d54d7b9ee272c3f#commitcomment-20399404
In
jena-arq/src/main/java/org/apache/jena/sparql/core/DatasetGraphPerGraphLocking.java:
In
jena-arq/src/main/java/org/apache/jena/sparql/core/DatasetGraphPerGraphLocking.java
on line 109:
No, we do need the `null` check because we start a transaction without
knowing which graph is involved. So there is a period between
`begin(ReadWrite)` and the first call the `getGraph` where `graphInTransaction`
is unset. I caught this with the tests.
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