Broke out the static variables so that they can be used separately.

[eitanbanks]

Description

I want to use the individual constants outside of the list, so need them broken out.

Checklist

• Code compiles correctly
• New tests covering changes and new functionality
• All tests passing
• Extended the README / documentation, if necessary
• Is not backward compatible (breaks binary or source compatibility)

[lbergelson]

👍

[lbergelson]

@eitanbanks 👍 to merge when tests pass, but can you update the commit name and comment when you merge so it's clear what constants are being split out.

[codecov-io]

Codecov Report

Merging #960 into master will increase coverage by 0.003%.
The diff coverage is 100%.

@@              Coverage Diff               @@
##             master      #960       +/-   ##
==============================================
+ Coverage     65.57%   65.573%   +0.003%     
+ Complexity     7376      7375        -1     
==============================================
  Files           528       528               
  Lines         31981     31981               
  Branches       5467      5467               
==============================================
+ Hits          20970     20971        +1     
+ Misses         8868      8866        -2     
- Partials       2143      2144        +1

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/htsjdk/samtools/util/IOUtil.java	30.945% <100%> (ø)	60 <0> (ø)	⬇️
...a/htsjdk/samtools/cram/encoding/rans/Decoding.java	82.143% <0%> (-3.571%)	11% <0%> (-1%)
...dk/samtools/seekablestream/SeekableHTTPStream.java	54.545% <0%> (-1.515%)	9% <0%> (-1%)
...samtools/util/AsyncBlockCompressedInputStream.java	76% <0%> (+4%)	13% <0%> (+1%)	⬆️

[pshapiro4broad]

You don't need new String[] when you're using an array literal as an initializer. You can write it like this:

 public static final String[] VCF_EXTENSIONS = {VCF_EXTENSION, COMPRESSED_VCF_EXTENSION, BCF_EXTENSION};

[eitanbanks]

Bah, I was just copying what was already there...
Alright, fine.

[pshapiro4broad]

This only applies to the field VCF_EXTENSION. Maybe it should be moved down to the line before VCF_EXTENSIONS. And you could add javadocs for the other new public fields.

[pshapiro4broad]

Below I see fields named XXX_FILE_EXTENSION so the names here aren't consistent with them. I'm not sure how important consistency is in this file.