RFR: JDK-8276892: Provide a way to emulate exceptional situations in FileManager when using JavadocTester

[Jonathan Gibbons]

On Tue, 16 Nov 2021 18:24:15 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

> TL;DR: Yes. But I didn't know about the getFileForInput use case. I'll look to make that possible.

There is an interesting difference between trapping  `javax.tools.JavaFileManager#getFileForInput` and `javax.tools.FileObject#getCharContent`.

For `getCharContent` we are filtering on the receiver of the method call.  For `getFileForInput` we would want to trap on the

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PR: https://git.openjdk.java.net/jdk/pull/6404