[BUG][Task] fix java task classpath

[jackyyyyyssss]

Purpose of the pull request

fix #15476

java -help It's a classpath, not a class-path

Brief change log

Verify this pull request

This pull request is code cleanup without any test coverage.

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This pull request is already covered by existing tests, such as (please describe tests).

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This change added tests and can be verified as follows:

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If your pull request contain incompatible change, you should also add it to docs/docs/en/guide/upgrede/incompatible.md

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0f7081b) 38.11% compared to head (64aac7d) 38.11%.

❗ Current head 64aac7d differs from pull request most recent head ac3e9c0. Consider uploading reports for the commit ac3e9c0 to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##                dev   #15470      +/-   ##
============================================
- Coverage     38.11%   38.11%   -0.01%     
  Complexity     4697     4697              
============================================
  Files          1299     1299              
  Lines         44775    44775              
  Branches       4797     4797              
============================================
- Hits          17067    17066       -1     
- Misses        25861    25862       +1     
  Partials       1847     1847              

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[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[fuchanghai]

LGTM

[SbloodyS]

LGTM.