Abhay Kulkarni created RANGER-3208:
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Summary: NPE in Ranger policy engine when processing SELF_OR_CHILD
scoped search
Key: RANGER-3208
URL: https://issues.apache.org/jira/browse/RANGER-3208
Project: Ranger
Issue Type: Bug
Components: Ranger
Reporter: Abhay Kulkarni
Assignee: Abhay Kulkarni
The following is the stack trace seen when Ranger policy engine searches Trie
object with SELF_OR_CHILD scope.
java.lang.NullPointerException at
java.util.AbstractCollection.addAll(AbstractCollection.java:343) at
org.apache.ranger.plugin.policyengine.RangerResourceTrie$TrieNode.collectChildEvaluators(RangerResourceTrie.java:1161)
at
org.apache.ranger.plugin.policyengine.RangerResourceTrie.lambda$getEvaluatorsForResource$0(RangerResourceTrie.java:604)
at
java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1628)
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:647)
at
org.apache.ranger.plugin.policyengine.RangerResourceTrie.getEvaluatorsForResource(RangerResourceTrie.java:604)
at
org.apache.ranger.plugin.policyengine.RangerResourceTrie.getEvaluatorsForResource(RangerResourceTrie.java:180)
at
org.apache.ranger.plugin.policyengine.RangerPolicyRepository.getLikelyMatchPolicyEvaluators(RangerPolicyRepository.java:811)
at
org.apache.ranger.plugin.policyengine.RangerPolicyRepository.getLikelyMatchAccessPolicyEvaluators(RangerPolicyRepository.java:764)
at
org.apache.ranger.plugin.policyengine.RangerPolicyRepository.getLikelyMatchPolicyEvaluators(RangerPolicyRepository.java:741)
at
org.apache.ranger.plugin.policyengine.RangerPolicyEngineImpl.evaluatePoliciesNoAudit(RangerPolicyEngineImpl.java:585)
at
org.apache.ranger.plugin.policyengine.RangerPolicyEngineImpl.zoneAwareAccessEvaluationWithNoAudit(RangerPolicyEngineImpl.java:486)
at
org.apache.ranger.plugin.policyengine.RangerPolicyEngineImpl.evaluatePolicies(RangerPolicyEngineImpl.java:110)
at
org.apache.ranger.plugin.service.RangerBasePlugin.isAccessAllowed(RangerBasePlugin.java:356)
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