GJL commented on a change in pull request #10235: [FLINK-14839][config] Let
JobGraph#classpaths become non-null
URL: https://github.com/apache/flink/pull/10235#discussion_r351205882
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/jobgraph/JobGraph.java
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@@ -100,7 +101,7 @@
private final List<PermanentBlobKey> userJarBlobKeys = new
ArrayList<>();
/** List of classpaths required to run this job. */
- private List<URL> classpaths = Collections.emptyList();
Review comment:
It's problematic that `JobGraph` implements `Serialized` and `classpaths` is
a non-transient field. After a cluster upgrade to 1.10 `addClasspaths` will
throw `UnsupportedOperationException` if `classpath` of the serialized JobGraph
was previously empty.
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