https://bz.apache.org/bugzilla/show_bug.cgi?id=65363
Bug ID: 65363
Summary: NullPointerException in
HTTPHC4Impl$ManagedCredentialsProvider.getAuthorizatio
nForAuthScope when 401 response from remote and
httpclient4.auth.preemptive=false
Product: JMeter
Version: 5.4.1
Hardware: PC
OS: Mac OS X 10.1
Status: NEW
Severity: normal
Priority: P2
Component: HTTP
Assignee: issues@jmeter.apache.org
Reporter: ply...@apache.org
Target Milestone: JMETER_5.5
Created attachment 37892
--> https://bz.apache.org/bugzilla/attachment.cgi?id=37892&action=edit
JMeter test file issue reproduce case
1. Configure jmeter property to turn off pre-emptive auth. (
httpclient4.auth.preemptive=false )
2. Have a server endpoint return 401 challenge to a request. ( in my example
jmeter test, the endpoint is http://httpbin.org/basic-auth/admin/admin123 )
3. Execute the attached example JMeter test case that sends a single request to
the server endpoint.
4. In the View Results Tree, select the sampler result tree node which
indicates an error.
Problem 1: On the Sampler result tab, notice that the sampler result indicates
something not helpful to end user. The following:
Response code:Non HTTP response code: java.lang.NullPointerException
Response message:Non HTTP response message: null
Expected: Response code should be 401 as that is what was actually returned by
the server.
Problem 2: on the Response data tab, Response headers tab, there are no
response headers from the 401 response.
Expected: there should be all the response headers that were returned by the
server.
Problem 3: Select the "Valid Response Codes" assertion node in the View Results
Tree. The "Assertion result" tab shows the following message:
Assertion error:false
Assertion failure:true
Assertion failure message:Test failed: code expected something using /
****** received : [[[Non HTTP response code: java.lang.NullPointerException]]]
****** comparison: [[[200 ]]]
Expected: Instead the "received" section should show the 401 status code
-----------------
Examining jmeter DEBUG logs we see the following stack trace at DEBUG level:
2021-06-07 09:13:35,074 DEBUG o.a.j.p.h.s.HTTPHC4Impl: RuntimeException
java.lang.NullPointerException: null
at
org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl$ManagedCredentialsProvider.getAuthorizationForAuthScope(HTTPHC4Impl.java:252)
~[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl$ManagedCredentialsProvider.getCredentials(HTTPHC4Impl.java:233)
~[ApacheJMeter_http.jar:5.4.1]
at
org.apache.http.impl.client.AuthenticationStrategyImpl.select(AuthenticationStrategyImpl.java:197)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.TargetAuthenticationStrategy.select(TargetAuthenticationStrategy.java:44)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.auth.HttpAuthenticator.handleAuthChallenge(HttpAuthenticator.java:151)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.MainClientExec.needAuthentication(MainClientExec.java:588)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:293)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.executeRequest(HTTPHC4Impl.java:935)
~[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:646)
[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:66)
[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1296)
[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1285)
[ApacheJMeter_http.jar:5.4.1]
at
org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:638)
[ApacheJMeter_core.jar:?]
at
org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:558)
[ApacheJMeter_core.jar:?]
at
org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:489)
[ApacheJMeter_core.jar:?]
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:256)
[ApacheJMeter_core.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275]
Expected: Avoid the NullPointerException on no auth manager present to process
the server challenge. Instead propagate the actual response code returned by
the server.
This bug seems to have been introduced by the fix for bug 64267.
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