Pierre Villard created NIFI-15636:
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Summary: StandardFlowComparator NullPointerException when property
descriptors are null in compareProperties
Key: NIFI-15636
URL: https://issues.apache.org/jira/browse/NIFI-15636
Project: Apache NiFi
Issue Type: Bug
Reporter: Pierre Villard
Assignee: Pierre Villard
StandardFlowComparator.compareProperties() throws a NullPointerException when
getPropertyDescriptors() returns null for a component being compared.
{code:java}
Exception in thread "main" java.lang.NullPointerException: Cannot invoke
"java.util.Map.get(Object)" because "descriptorsB" is null at
o.a.n.registry.flow.diff.StandardFlowComparator.lambda$compareProperties$2(StandardFlowComparator.java:391)
at java.base/java.util.LinkedHashMap.forEach(Unknown Source) at
o.a.n.registry.flow.diff.StandardFlowComparator.compareProperties(StandardFlowComparator.java:389){code}
The fix wraps all compareProperties call sites with the existing nullToEmpty()
method to be consistent with VersionedFlowRegistryClient.
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