TisonKun created FLINK-13333:
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Summary: Potentially NPE of preview plan functionality
Key: FLINK-13333
URL: https://issues.apache.org/jira/browse/FLINK-13333
Project: Flink
Issue Type: Bug
Affects Versions: 1.10.0
Reporter: TisonKun
{{PackagedProgram#getPreviewPlan}} contains code as below
{code:java}
if (isUsingProgramEntryPoint()) {
previewPlan = Optimizer.createPreOptimizedPlan(getPlan());
} else if (isUsingInteractiveMode()) {
// ...
getPlan().getJobId();
// ....
}
{code}
when the latter {{#getPlan}} executed, it will finally execute
{{program.getPlan(options)}} where {{program}} equals null.
To solve this problem, we can replace {{getPlan}} with {{env.getPlan}}. Where
{{env}} is an instance of {{PreviewPlanEnvironment}}
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