bugfix: run with jar file and not package third lib into jar file, this.getClass().getClassLoader() will be null

[lian88jian]

Ⅰ. Describe what this PR did

jar运行模式, 当第三方依赖分开打包时, this.getClass().getClassLoader()是null, 会报空指针异常

Ⅱ. Does this pull request fix one issue?

#3407

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[funky-eyes]

Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:170:9: 'if' is not followed by whitespace. [WhitespaceAround]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:170:32: '{' is not preceded with whitespace. [WhitespaceAround]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:175: 'array initialization' child has incorrect indentation level 20, expected level should be 16. [Indentation]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:179: 'array initialization' child has incorrect indentation level 20, expected level should be 16. [Indentation]

这几个代码按照阿里p3c代码格式化一下

[lian88jian]

Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:170:9: 'if' is not followed by whitespace. [WhitespaceAround]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:170:32: '{' is not preceded with whitespace. [WhitespaceAround]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:175: 'array initialization' child has incorrect indentation level 20, expected level should be 16. [Indentation]
Error: /home/runner/work/seata/seata/config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java:179: 'array initialization' child has incorrect indentation level 20, expected level should be 16. [Indentation]

这几个代码按照阿里p3c代码格式化一下

好了.

[codecov-io]

Codecov Report

Merging #3408 (5d3eec4) into develop (08fbcef) will increase coverage by 0.00%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             develop    #3408   +/-   ##
==========================================
  Coverage      51.56%   51.57%           
- Complexity      3341     3343    +2     
==========================================
  Files            616      616           
  Lines          20243    20251    +8     
  Branches        2541     2542    +1     
==========================================
+ Hits           10439    10444    +5     
- Misses          8752     8756    +4     
+ Partials        1052     1051    -1     

Impacted Files	Coverage Δ	Complexity Δ
...c/main/java/io/seata/config/FileConfiguration.java	43.10% <66.66%> (+0.16%)	12.00 <3.00> (ø)
...igure/properties/config/ConfigNacosProperties.java	36.00% <0.00%> (-2.10%)	3.00% <0.00%> (ø%)
...in/java/io/seata/server/session/GlobalSession.java	84.09% <0.00%> (+0.45%)	72.00% <0.00%> (+1.00%)
...o/seata/server/coordinator/DefaultCoordinator.java	55.15% <0.00%> (+0.51%)	29.00% <0.00%> (+1.00%)

[l81893521]

LGTM

[jsbxyyx]

LGTM