RFR: 7903020: Command line error: Incorrect output filename - can't write

[Leonid Kuskov]

On Mon, 30 Aug 2021 02:18:16 GMT, Alexandre Iline <shurailine at openjdk.org> wrote:

>> This is the fix for https://bugs.openjdk.java.net/browse/CODETOOLS-7903020
>> The fix extends checking of files as existing as non-existing
>
> src/classes/com/sun/tdk/jcov/Merger.java line 1017:
> 
>> 1015:         template = opts.getValue(DSC_TEMPLATE);
>> 1016:         Utils.checkFileCanBeNull(template, "template filename",
>> 1017:                 Utils.CheckOptions.FILE_EXISTS, Utils.CheckOptions.FILE_ISFILE, Utils.CheckOptions.FILE_CANREAD);
> 
> is FILE_EXISTS a subset of FILE_CANREAD?

Yes, it is. Actually there are 20 places where this check is used. 
Here FILE_CANREAD covers both EXISTS && ISFILE

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PR: https://git.openjdk.java.net/jcov/pull/18