English FAQ revisions

[NeilNarotam]

Didn't know how else to submit change requests for the English FAQ. Hope this is ok.

Here is the comment about fastjon of (by) the author of jackson cowtowncoder: https://groups.google.com/forum/#!topic/java-serialization-benchmarking/8eS1KOquAhw

fastjson is 6 times faster than gson, here is (are) the testing result(s): https://github.com/eishay/jvm-serializers/wiki/Staging-Results 。

no, the only need (requirement) is that the class is a java bean specification satisfied class.

[codecov-commenter]

Codecov Report

Merging #3269 into master will increase coverage by 2.17%.
The diff coverage is 63.63%.

@@             Coverage Diff              @@
##             master    #3269      +/-   ##
============================================
+ Coverage     80.42%   82.59%   +2.17%     
- Complexity     7303     9064    +1761     
============================================
  Files           155      157       +2     
  Lines         27346    34067    +6721     
  Branches       6551    10000    +3449     
============================================
+ Hits          21992    28138    +6146     
- Misses         3449     3834     +385     
- Partials       1905     2095     +190     

Impacted Files	Coverage Δ	Complexity Δ
...ava/com/alibaba/fastjson/parser/JSONLexerBase.java	75.81% <0.00%> (+4.43%)	1358.00 <0.00> (+529.00)
.../fastjson/parser/deserializer/MapDeserializer.java	87.54% <75.00%> (+1.17%)	83.00 <1.00> (+18.00)
.../parser/deserializer/DefaultFieldDeserializer.java	89.70% <100.00%> (ø)	25.00 <0.00> (+1.00)
...om/alibaba/fastjson/serializer/EnumSerializer.java	70.37% <0.00%> (-29.63%)	7.00% <0.00%> (+4.00%)	⬇️
...astjson/parser/deserializer/FieldDeserializer.java	86.25% <0.00%> (-1.53%)	79.00% <0.00%> (+43.00%)	⬇️
...m/alibaba/fastjson/serializer/BigIntegerCodec.java	85.00% <0.00%> (-0.72%)	18.00% <0.00%> (+7.00%)	⬇️
...n/parser/deserializer/EnumCreatorDeserializer.java	54.54% <0.00%> (ø)	2.00% <0.00%> (?%)
src/main/java/com/alibaba/fastjson/JSONPatch.java	71.42% <0.00%> (ø)	11.00% <0.00%> (?%)
...main/java/com/alibaba/fastjson/util/FieldInfo.java	86.74% <0.00%> (+0.19%)	126.00% <0.00%> (+35.00%)
...c/main/java/com/alibaba/fastjson/util/IOUtils.java	86.61% <0.00%> (+0.25%)	118.00% <0.00%> (+1.00%)
... and 19 more

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