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https://issues.apache.org/jira/browse/RANGER-3429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17442646#comment-17442646
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Mallika Gogoi commented on RANGER-3429:
---------------------------------------
After analysing we found that there are 3 following methods which needs to be
addressed/ checked. We analysed and tried/ checked all possible scenarios which
might leads to NullPointerException. Details are as follows.
[getTagDefByName(String
name)|https://github.com/apache/ranger/blob/master/security-admin/src/main/java/org/apache/ranger/biz/TagDBStore.java#L235]
test case1: for variable name = null
test case2: for variable name = not null
[getServiceResourceByServiceAndResourceSignature(String serviceName, String
resourceSignature)|https://github.com/apache/ranger/blob/master/security-admin/src/main/java/org/apache/ranger/biz/TagDBStore.java#L663]
test case1: for variable serviceName = null, resourceSignature = null and
service = null
test case2: for variable serviceName = null, resourceSignature = null and
service = not null
test case3: for variable serviceName = null, resourceSignature = not null and
service = null
test case4: for variable serviceName = null, resourceSignature = not null and
service = not null
test case5: for variable serviceName = not null, resourceSignature = null and
service = null
test case6: for variable serviceName = not null, resourceSignature = null and
service = not null
test case7: for variable serviceName = not null, resourceSignature = not null
and service = null
test case8: for variable serviceName = not null, resourceSignature = not null
and service = not null
[createServiceTagsDelta(List<XXTagChangeLog>
changeLogs)|https://github.com/apache/ranger/blob/master/security-admin/src/main/java/org/apache/ranger/biz/TagDBStore.java#L1189]
test case1: for variable changeLogs = null
test case2: for variable changeLogs = not null
Since we are not able to reproduce/ come-up with a scenario which leads to
NullPointerException, we conclude no action required on this task.
CC [~mehul]
> Null Dereference in TagDBStore.java
> -----------------------------------
>
> Key: RANGER-3429
> URL: https://issues.apache.org/jira/browse/RANGER-3429
> Project: Ranger
> Issue Type: Bug
> Components: Ranger
> Reporter: Abhishek Kumar
> Assignee: Mallika Gogoi
> Priority: Minor
>
> Null dereference in TagDBStore.java at line numbers : 247 and 677.
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