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From "PandaMonkey (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-7799) Dependency Conflict : Conlicting JARs
Date Fri, 23 Feb 2018 10:48:00 GMT
PandaMonkey created IGNITE-7799:
-----------------------------------

             Summary: Dependency Conflict : Conlicting JARs
                 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
             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 "NoSuchMethodException"
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)>

 



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