jenkinsci / jenkinsci/java-client-api

Caused by: org.apache.http.HttpException: No credentials for preemptive authentication

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bug
Dominant language
Java
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Forks
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Description

### Jenkins and plugins versions report

Environment


```text
Paste the output here
```

### What Operating System are you using (both controller, and any agents involved in the problem)?

win

### Reproduction steps

JenkinsServer jenkinsServer = new JenkinsServer(
new URI("https:xxx"),
"xxx",
"xxx"
);
jenkinsServer.getJobs();

### Expected Results

jobs

### Actual Results

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: org.apache.http.HttpException: No credentials for preemptive authentication
at com.offbytwo.jenkins.client.PreemptiveAuth.process(PreemptiveAuth.java:39)
at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:133)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
... 38 more

### Anything else?

_No response_

### Are you interested in contributing a fix?

_No response_

Contributor guide

Open the contributing guide

Research direction

The stack trace points to PreemptiveAuth.java:39; begin there and inspect the JenkinsServer/getJobs reproduction described in the issue. Reproduce the authentication failure using the stated Windows environment, and consider the work complete when getJobs returns the expected jobs without this exception.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
api, authentication
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
28/100

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