duplicate code in JenkinsHttpClient.java

There are some duplicate code in JenkinsHttpClient.java 360 line and 391 lines, is it better to extract it?

Open JenkinsHttpClient.java and compare the code around lines 360 and 391 to confirm what is duplicated and whether the behavior is identical. Extract the shared logic without changing client behavior, then run the existing project tests to verify the refactor.

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