[jira] [Closed] (MIME4J-307) Header::getField with class cast can fail with NPE

["Benoit Tellier (Jira)" <mi...@james.apache.org>]

     [ https://issues.apache.org/jira/browse/MIME4J-307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benoit Tellier closed MIME4J-307.
---------------------------------
    Resolution: Fixed

Fixed by https://github.com/apache/james-mime4j/pull/59

> Header::getField with class cast can fail with NPE
> --------------------------------------------------
>
>                 Key: MIME4J-307
>                 URL: https://issues.apache.org/jira/browse/MIME4J-307
>             Project: James Mime4j
>          Issue Type: Task
>          Components: dom
>            Reporter: Benoit Tellier
>            Priority: Major
>             Fix For: 0.8.7
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> {code:java}
> original.getHeader().getField("Sender", MailboxField.class)
> {code}
> On an email without a sender will yield:
> {code:java}
> java.lang.NullPointerException
> 	at org.apache.james.mime4j.message.AbstractHeader.getField(AbstractHeader.java:128)
> 	at org.apache.james.mime4j.dom.MessageTest.test(MessageTest.java:446)
> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> {code}
> That's a shame, the method is convenient.
> To fix this, add a null check.



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