[ 
https://issues.apache.org/jira/browse/IGNITE-7799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

PandaMonkey updated IGNITE-7799:
--------------------------------
    Description: 
Hi, by analyzing ignite-master\modules\aws\pom.xml, I found that there are two 
versions of *org.apache.httpcomponents:httpclient*. Their introduced path is:
 # 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
 # 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile

Of them, httpclient:4.5.2 is the transitive dependency, and httpclient:4.5.1 is 
the direct dependency. By further analyzing the source code, we found they have 
different features. As the JVM only load the classes present first on the 
classpath and shadow the other duplicate ones with the same names. The 
dependency conflict problem brings high risks of "*NotClassDefFoundError:*" or 
"*NoSuchMethodError*" issues at runtime. Please notice this problem. *The 
solution is upgrading httpclient from 4.5.1 to 4.5.2.*

 

===============projectPath->org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT@D:\ws\snapshot\ignite-master\modules\aws\pom.xml
 
=======conflict:<org.apache.httpcomponents:httpclient:4.5.2::compile><org.apache.httpcomponents:httpclient:4.5.1::compile>
 size:2
 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile

*====Risk for ClassNotFoundException/NotClassDefFoundError:*
 a) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.1:
 org.apache.http.client.utils.DateUtils$DateFormatHolder$1

b) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.2:
 org.apache.http.conn.ssl.DefaultHostnameVerifier$TYPE
 org.apache.http.impl.client.DefaultClientConnectionReuseStrategy
 org.apache.http.conn.ssl.DefaultHostnameVerifier$1

*====Risk for NoSuchMethodException/NoSuchMethodError:*
 Methods that only exist in org.apache.httpcomponents:httpclient:4.5.2:
 <org.apache.http.impl.cookie.PublicSuffixDomainFilter: java.util.Map 
createLocalDomainMap()>
 <org.apache.http.impl.cookie.IgnoreSpec: boolean 
match(org.apache.http.cookie.Cookie,org.apache.http.cookie.CookieOrigin)>
 <org.apache.http.impl.client.HttpClientBuilder: 
org.apache.http.impl.client.HttpClientBuilder 
setDnsResolver(org.apache.http.conn.DnsResolver)>

 

  was:
Hi, by analyzing ignite-master\modules\aws\pom.xml, I found that there are two 
versions of *org.apache.httpcomponents:httpclient*. Their introduced path is:
 # 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
 # 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile

Of them, httpclient:4.5.2 is the transitive dependency, and httpclient:4.5.1 is 
the direct dependency. By further analyzing the source code, we found they have 
different features. As the JVM only load the classes present first on the 
classpath and shadow the other duplicate ones with the same names. The 
dependency conflict problem brings high risks of "*NotClassDefFoundError:*" or 
"*NoSuchMethodError*" issues at runtime. Please notice this problem.

 

===============projectPath->org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT@D:\ws\snapshot\ignite-master\modules\aws\pom.xml
 
=======conflict:<org.apache.httpcomponents:httpclient:4.5.2::compile><org.apache.httpcomponents:httpclient:4.5.1::compile>
 size:2
 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
 
org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile

*====Risk for ClassNotFoundException/NotClassDefFoundError:*
 a) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.1:
 org.apache.http.client.utils.DateUtils$DateFormatHolder$1

b) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.2:
 org.apache.http.conn.ssl.DefaultHostnameVerifier$TYPE
 org.apache.http.impl.client.DefaultClientConnectionReuseStrategy
 org.apache.http.conn.ssl.DefaultHostnameVerifier$1

*====Risk for NoSuchMethodException/NoSuchMethodError:*
 Methods that only exist in org.apache.httpcomponents:httpclient:4.5.2:
 <org.apache.http.impl.cookie.PublicSuffixDomainFilter: java.util.Map 
createLocalDomainMap()>
 <org.apache.http.impl.cookie.IgnoreSpec: boolean 
match(org.apache.http.cookie.Cookie,org.apache.http.cookie.CookieOrigin)>
 <org.apache.http.impl.client.HttpClientBuilder: 
org.apache.http.impl.client.HttpClientBuilder 
setDnsResolver(org.apache.http.conn.DnsResolver)>

 


> Dependency Conflict : Conlicting JARs org.apache.httpcomponents:httpclient
> --------------------------------------------------------------------------
>
>                 Key: IGNITE-7799
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7799
>             Project: Ignite
>          Issue Type: Bug
>          Components: aws
>    Affects Versions: 2.5
>            Reporter: PandaMonkey
>            Priority: Major
>             Fix For: 3.0
>
>
> Hi, by analyzing ignite-master\modules\aws\pom.xml, I found that there are 
> two versions of *org.apache.httpcomponents:httpclient*. Their introduced path 
> is:
>  # 
> org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
>  # 
> org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile
> Of them, httpclient:4.5.2 is the transitive dependency, and httpclient:4.5.1 
> is the direct dependency. By further analyzing the source code, we found they 
> have different features. As the JVM only load the classes present first on 
> the classpath and shadow the other duplicate ones with the same names. The 
> dependency conflict problem brings high risks of "*NotClassDefFoundError:*" 
> or "*NoSuchMethodError*" issues at runtime. Please notice this problem. *The 
> solution is upgrading httpclient from 4.5.1 to 4.5.2.*
>  
> ===============projectPath->org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT@D:\ws\snapshot\ignite-master\modules\aws\pom.xml
>  
> =======conflict:<org.apache.httpcomponents:httpclient:4.5.2::compile><org.apache.httpcomponents:httpclient:4.5.1::compile>
>  size:2
>  
> org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->com.amazonaws:aws-java-sdk-core:1.11.75::compile->org.apache.httpcomponents:httpclient:4.5.2::compile
>  
> org.apache.ignite:ignite-aws:2.5.0-SNAPSHOT::null->org.apache.httpcomponents:httpclient:4.5.1::compile
> *====Risk for ClassNotFoundException/NotClassDefFoundError:*
>  a) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.1:
>  org.apache.http.client.utils.DateUtils$DateFormatHolder$1
> b) Classes that only exist in org.apache.httpcomponents:httpclient:4.5.2:
>  org.apache.http.conn.ssl.DefaultHostnameVerifier$TYPE
>  org.apache.http.impl.client.DefaultClientConnectionReuseStrategy
>  org.apache.http.conn.ssl.DefaultHostnameVerifier$1
> *====Risk for NoSuchMethodException/NoSuchMethodError:*
>  Methods that only exist in org.apache.httpcomponents:httpclient:4.5.2:
>  <org.apache.http.impl.cookie.PublicSuffixDomainFilter: java.util.Map 
> createLocalDomainMap()>
>  <org.apache.http.impl.cookie.IgnoreSpec: boolean 
> match(org.apache.http.cookie.Cookie,org.apache.http.cookie.CookieOrigin)>
>  <org.apache.http.impl.client.HttpClientBuilder: 
> org.apache.http.impl.client.HttpClientBuilder 
> setDnsResolver(org.apache.http.conn.DnsResolver)>
>  



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