adoroszlai opened a new pull request, #3630:
URL: https://github.com/apache/ozone/pull/3630
## What changes were proposed in this pull request?
Fix the exception:
```
ERROR org.apache.hadoop.ozone.HddsDatanodeService: Exception in
HddsDatanodeService.
java.lang.NullPointerException
at
org.apache.hadoop.ozone.container.ec.reconstruction.TokenHelper.<init>(TokenHelper.java:68)
at
org.apache.hadoop.ozone.container.ec.reconstruction.ECReconstructionCoordinator.<init>(ECReconstructionCoordinator.java:119)
at
org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine.<init>(DatanodeStateMachine.java:185)
at
org.apache.hadoop.ozone.HddsDatanodeService.start(HddsDatanodeService.java:279)
```
triggered by such config:
```xml
<property>
<name>hdds.block.token.enabled</name>
<value>true</value>
</property>
<property>
<name>hdds.container.token.enabled</name>
<value>true</value>
</property>
<property>
<name>ozone.security.enabled</name>
<value>false</value>
</property>
```
`TokenHelper` still allows this config (as required for
`TestContainerCommandsEC` integration test), but checks if certificate client
is present or not.
https://issues.apache.org/jira/browse/HDDS-7055
## How was this patch tested?
Updated `TestHddsDatanodeService` with configuration as above to verify
`HddsDatanodeService` can be started successfully.
`TestContainerCommandsEC` covers functionality of `TokenHelper` with tokens
enabled.
https://github.com/adoroszlai/hadoop-ozone/actions/runs/2745224823
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