RFR: 6616245: NullPointerException when using JFileChooser with a custom FileView

[Tejesh R]

On Fri, 30 Sep 2022 07:44:31 GMT, Abhishek Kumar <duke at openjdk.org> wrote:

>> When a custom `FileView` is used and folder traversal is restricted to a particular directory NPE occurs when user tries to traverse/select other folders except traversable folder. This is caused because when user selects folder other than traversable, the traversal is rejected and hence no file is selected as `currentDirectory` of `JFileChooser`. When user tries to access the restricted folder second time, previous selected file check is failing because of NPE since `getFileChooser().getCurrentDirectory();` is null. To fix the issue, NPE check is added.
>
> The instruction are not quite clear. Can you please modify it as we discussed over call?

@kumarabhi006 - Reviewer

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PR: https://git.openjdk.org/jdk/pull/10485