[ 
https://issues.apache.org/jira/browse/HTTPCLIENT-2301?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Pierre N. updated HTTPCLIENT-2301:
----------------------------------
    Description: 
BasicHttpClientConnectionManager doesn't handle request timeout correctly and 
return the response of a previous request.

The unit test below should output:

{quote}
http://localhost:41751/1 -> 1
http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:41751/3 -> 3
http://localhost:41751/3 -> 3
http://localhost:41751/3 -> 3
{quote}

But instead it returns:

{quote}
http://localhost:33875/1 -> 1
http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/3 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/3 -> 2
http://localhost:33875/3 -> 3
{quote}


As you can see it returns 2 when requesting the uri /3 which returned 3.
Also it timeout on the first request to /3 while it shouldn't.

Replace with PoolingHttpClientConnectionManager() and it works as expected.



Kotlin unit test to reproduce :

{quote}
import com.github.tomakehurst.wiremock.client.WireMock.*
import com.github.tomakehurst.wiremock.junit5.WireMockRuntimeInfo
import com.github.tomakehurst.wiremock.junit5.WireMockTest
import org.apache.hc.client5.http.classic.methods.HttpGet
import org.apache.hc.client5.http.config.RequestConfig
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient
import org.apache.hc.client5.http.impl.classic.HttpClients
import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager
import org.apache.hc.core5.http.io.entity.EntityUtils
import org.apache.hc.core5.util.Timeout
import org.junit.jupiter.api.Test

@WireMockTest
internal class HttpClientRaceConditionDebug {

    @Test
    fun `debugging z`(wm: WireMockRuntimeInfo) {
        stubFor(get(urlEqualTo("/1")).willReturn(aResponse().withBody("1")))
        
stubFor(get(urlEqualTo("/2")).willReturn(aResponse().withFixedDelay(2000).withBody("2")))
        stubFor(get(urlEqualTo("/3")).willReturn(aResponse().withBody("3")))

        val client = HttpClients.custom()
            .setConnectionManager(BasicHttpClientConnectionManager())
//            .setConnectionManager(PoolingHttpClientConnectionManager())
            .setDefaultRequestConfig(
                RequestConfig.custom()
                    .setResponseTimeout(Timeout.ofSeconds(1))
                    .build()
            )
            .build()

        client.executeAndLog("${wm.httpBaseUrl}/1")
        client.executeAndLog("${wm.httpBaseUrl}/2")
        client.executeAndLog("${wm.httpBaseUrl}/2")
        client.executeAndLog("${wm.httpBaseUrl}/3")
        client.executeAndLog("${wm.httpBaseUrl}/3")
        client.executeAndLog("${wm.httpBaseUrl}/3")
    }

    private fun CloseableHttpClient.executeAndLog(uri: String) {
        try {
            execute(HttpGet(uri)) { println("$uri -> 
${EntityUtils.toString(it.entity)}") }
        } catch (ex: Exception) {
            println("$uri -> $ex")
        }
    }
}
{quote}


  was:
BasicHttpClientConnectionManager doesn't handle request timeout correctly and 
return the response of a previous request.

In the unit test below should output:

{quote}
http://localhost:41751/1 -> 1
http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:41751/3 -> 3
http://localhost:41751/3 -> 3
http://localhost:41751/3 -> 3
{quote}

But instead it returns:

{quote}
http://localhost:33875/1 -> 1
http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/3 -> java.net.SocketTimeoutException: Read timed out
http://localhost:33875/3 -> 2
http://localhost:33875/3 -> 3
{quote}


As you can see it returns 2 when requesting the uri /3 which returned 3.
Also it timeout on the first request to /3 while it shouldn't.

Replace with PoolingHttpClientConnectionManager() and it works as expected.



Kotlin unit test to reproduce :

{quote}
import com.github.tomakehurst.wiremock.client.WireMock.*
import com.github.tomakehurst.wiremock.junit5.WireMockRuntimeInfo
import com.github.tomakehurst.wiremock.junit5.WireMockTest
import org.apache.hc.client5.http.classic.methods.HttpGet
import org.apache.hc.client5.http.config.RequestConfig
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient
import org.apache.hc.client5.http.impl.classic.HttpClients
import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager
import org.apache.hc.core5.http.io.entity.EntityUtils
import org.apache.hc.core5.util.Timeout
import org.junit.jupiter.api.Test

@WireMockTest
internal class HttpClientRaceConditionDebug {

    @Test
    fun `debugging z`(wm: WireMockRuntimeInfo) {
        stubFor(get(urlEqualTo("/1")).willReturn(aResponse().withBody("1")))
        
stubFor(get(urlEqualTo("/2")).willReturn(aResponse().withFixedDelay(2000).withBody("2")))
        stubFor(get(urlEqualTo("/3")).willReturn(aResponse().withBody("3")))

        val client = HttpClients.custom()
            .setConnectionManager(BasicHttpClientConnectionManager())
//            .setConnectionManager(PoolingHttpClientConnectionManager())
            .setDefaultRequestConfig(
                RequestConfig.custom()
                    .setResponseTimeout(Timeout.ofSeconds(1))
                    .build()
            )
            .build()

        client.executeAndLog("${wm.httpBaseUrl}/1")
        client.executeAndLog("${wm.httpBaseUrl}/2")
        client.executeAndLog("${wm.httpBaseUrl}/2")
        client.executeAndLog("${wm.httpBaseUrl}/3")
        client.executeAndLog("${wm.httpBaseUrl}/3")
        client.executeAndLog("${wm.httpBaseUrl}/3")
    }

    private fun CloseableHttpClient.executeAndLog(uri: String) {
        try {
            execute(HttpGet(uri)) { println("$uri -> 
${EntityUtils.toString(it.entity)}") }
        } catch (ex: Exception) {
            println("$uri -> $ex")
        }
    }
}
{quote}



> BasicHttpClientConnectionManager returns response of previous requests
> ----------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-2301
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2301
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient (classic)
>    Affects Versions: 5.2.1, 5.3-alpha1
>         Environment: JAVA 18
> kotlin 1.7.22
> Ubuntu 22.04 x64
>            Reporter: Pierre N.
>            Priority: Major
>         Attachments: test.kt
>
>
> BasicHttpClientConnectionManager doesn't handle request timeout correctly and 
> return the response of a previous request.
> The unit test below should output:
> {quote}
> http://localhost:41751/1 -> 1
> http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
> http://localhost:41751/2 -> java.net.SocketTimeoutException: Read timed out
> http://localhost:41751/3 -> 3
> http://localhost:41751/3 -> 3
> http://localhost:41751/3 -> 3
> {quote}
> But instead it returns:
> {quote}
> http://localhost:33875/1 -> 1
> http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
> http://localhost:33875/2 -> java.net.SocketTimeoutException: Read timed out
> http://localhost:33875/3 -> java.net.SocketTimeoutException: Read timed out
> http://localhost:33875/3 -> 2
> http://localhost:33875/3 -> 3
> {quote}
> As you can see it returns 2 when requesting the uri /3 which returned 3.
> Also it timeout on the first request to /3 while it shouldn't.
> Replace with PoolingHttpClientConnectionManager() and it works as expected.
> Kotlin unit test to reproduce :
> {quote}
> import com.github.tomakehurst.wiremock.client.WireMock.*
> import com.github.tomakehurst.wiremock.junit5.WireMockRuntimeInfo
> import com.github.tomakehurst.wiremock.junit5.WireMockTest
> import org.apache.hc.client5.http.classic.methods.HttpGet
> import org.apache.hc.client5.http.config.RequestConfig
> import org.apache.hc.client5.http.impl.classic.CloseableHttpClient
> import org.apache.hc.client5.http.impl.classic.HttpClients
> import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager
> import org.apache.hc.core5.http.io.entity.EntityUtils
> import org.apache.hc.core5.util.Timeout
> import org.junit.jupiter.api.Test
> @WireMockTest
> internal class HttpClientRaceConditionDebug {
>     @Test
>     fun `debugging z`(wm: WireMockRuntimeInfo) {
>         stubFor(get(urlEqualTo("/1")).willReturn(aResponse().withBody("1")))
>         
> stubFor(get(urlEqualTo("/2")).willReturn(aResponse().withFixedDelay(2000).withBody("2")))
>         stubFor(get(urlEqualTo("/3")).willReturn(aResponse().withBody("3")))
>         val client = HttpClients.custom()
>             .setConnectionManager(BasicHttpClientConnectionManager())
> //            .setConnectionManager(PoolingHttpClientConnectionManager())
>             .setDefaultRequestConfig(
>                 RequestConfig.custom()
>                     .setResponseTimeout(Timeout.ofSeconds(1))
>                     .build()
>             )
>             .build()
>         client.executeAndLog("${wm.httpBaseUrl}/1")
>         client.executeAndLog("${wm.httpBaseUrl}/2")
>         client.executeAndLog("${wm.httpBaseUrl}/2")
>         client.executeAndLog("${wm.httpBaseUrl}/3")
>         client.executeAndLog("${wm.httpBaseUrl}/3")
>         client.executeAndLog("${wm.httpBaseUrl}/3")
>     }
>     private fun CloseableHttpClient.executeAndLog(uri: String) {
>         try {
>             execute(HttpGet(uri)) { println("$uri -> 
> ${EntityUtils.toString(it.entity)}") }
>         } catch (ex: Exception) {
>             println("$uri -> $ex")
>         }
>     }
> }
> {quote}



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