Tran Hong Quan created JAMES-3815:
-------------------------------------
Summary: Handle possible null case (as optional) in imapUidTable
and messageIdTable
Key: JAMES-3815
URL: https://issues.apache.org/jira/browse/JAMES-3815
Project: James Server
Issue Type: Bug
Affects Versions: master
Reporter: Tran Hong Quan
We observed a NullPointerException in our staging env:
```
{"timestamp":"2022-09-06T03:08:52.653Z","level":"ERROR","thread":"s1-io-2","mdc":\{"protocol":"JMAP","ip":"10.2.1.28","real-ip":"51.68.40.116"},"logger":"org.apache.james.jmap.http.JMAPApiRoutes","message":"Unexpected
error","context":"default","exception":"java.lang.NullPointerException: Cannot
invoke "java.time.Instant.toEpochMilli()" because "" is null\n\tat
java.base/java.util.Date.from(Unknown Source)\n\tat
org.apache.james.mailbox.cassandra.mail.CassandraMessageIdToImapUidDAO.toComposedMessageIdWithMetadata(CassandraMessageIdToImapUidDAO.java:406)...
```
This NPE likely comes from badly applied [Rework message denormalization
migration]([https://github.com/apache/james-project/blob/master/upgrade-instructions.md#rework-message-denormalization)]
which creates in `imapUidTable` and `messageIdTable` a few rows with null
`internalDate`, `bodyStartOctet`, `fullContentOctets` and `headerContent`.
Now the Cassandra driver 4 code just triggers that NPE (can not convert a null
to Date), the old driver code accepts null though
(ComposedMessageIdWithMetaData.builder()::
internalDate accepts null).
We anticipate others could have a bad migration leading to this NPE as well,
therefore we need to handle this possible null value in `messageIdTable` and
`imapUidTable` using Optional.
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