Java/Maven: diferentes versiones SLF4J en diferentes proyectos que causan errores de compilación en la integración

Question

tengo una project A cuya pom.xml tiene la siguiente dependencia de slf4j

<dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-api</artifactId> 
     <version>1.5.10</version> 
    </dependency> 
    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-log4j12</artifactId> 
     <version>1.5.10</version> 
    </dependency> 

Ahora tengo diferentes project B cuya pom.xml tiene las siguientes dependencia de slf4j

</dependency> 
    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-api</artifactId> 
     <version>1.6.4</version> 
    </dependency> 
    <dependency> 
     <groupId>ch.qos.logback</groupId> 
     <artifactId>logback-classic</artifactId> 
     <version>1.0.3</version> 
    </dependency> 

ahora tengo que integrar dos proyectos, pero que no jueguen bien para ti conseguir ella cuando tienen diferentes versiones. Así que esto es lo que he intentado
Enfoque 1 - Actualización slf4j en project A Después de cambiar el pom.xml a

<dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-api</artifactId> 
     <version>1.6.4</version> 
    </dependency> 
    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-log4j12</artifactId> 
     <version>1.6.4</version> 
    </dependency> 

empecé a ver errores de compilación diciendo

SLF4J: The requested version 1.5.10 by your slf4j binding is not compatible with [1.6] 
SLF4J: See http://www.slf4j.org/codes.html#version_mismatch for further details. 

y las pruebas parecen fallar con

java.lang.IllegalStateException: Failed to load ApplicationContext 
    at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:308) 
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109) 
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) 
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:220) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:301) 
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:303) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) 
    at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) 
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) 
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) 
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) 
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:220) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180) 
    at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59) 
    at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:115) 
    at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:102) 
    at org.apache.maven.surefire.Surefire.run(Surefire.java:180) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350) 
    at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021) 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 

Enfoque 2 - Degradación slf4j en project B

Después de cambiar pom.xml como seguir

<dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-api</artifactId> 
     <version>1.5.10</version> 
    </dependency> 
    <dependency> 
     <groupId>ch.qos.logback</groupId> 
     <artifactId>logback-classic</artifactId> 
     <version>1.0.3</version> 
    </dependency> 

veo errores en pruebas como

testPutDocument(com.org.sparrow.business.persist.MongoServiceTest): org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple; 
    testPutDocuments(com.org.sparrow.business.persist.MongoServiceTest): org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple; 
    testGetDocument(com.org.sparrow.business.persist.MongoServiceTest): org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple; 

¿Cuál es la mejor manera de abordar este problema?

ACTUALIZACIÓN árbol dependencia es aquí

[INFO] +- commons-codec:commons-codec:jar:1.4:compile 
[INFO] +- spy:spymemcached:jar:2.6:compile 
[INFO] +- com.google.code.findbugs:annotations:jar:1.3.9:compile 
[INFO] +- com.google.code.findbugs:jsr305:jar:1.3.9:compile 
[INFO] +- redis.clients:jedis:jar:1.4.0:compile 
[INFO] +- com.googlecode:hibernate-memcached:jar:1.2.2:compile 
[INFO] | \- spy:memcached:jar:2.4.2:compile 
[INFO] +- j2ssh:core:jar:0.2.9-SR:compile 
[INFO] +- emma:maven-emma-plugin:jar:0.5:test 
[INFO] | +- ant:ant:jar:1.6.3:test 
[INFO] | \- emma:emma_ant:jar:2.0.5312:test 
[INFO] +- emma:emma:jar:2.0.4217:test 
[INFO] | +- commons-jelly:commons-jelly-tags-regexp:jar:1.0:test 
[INFO] | \- regexp:regexp:jar:1.3:test 
[INFO] +- org.apache.commons:commons-email:jar:1.1:compile 
[INFO] | +- javax.mail:mail:jar:1.4:compile 
[INFO] | \- javax.activation:activation:jar:1.1:compile 
[INFO] +- hsqldb:hsqldb:jar:1.8.0.7:test 
[INFO] +- org.aspectj:aspectjrt:jar:1.6.1:compile 
[INFO] +- org.aspectj:aspectjweaver:jar:1.6.1:compile 
[INFO] +- org.springframework:spring-context-support:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-web:jar:3.0.5.RELEASE:compile 
[INFO] | \- aopalliance:aopalliance:jar:1.0:compile 
[INFO] +- org.springframework:spring-tx:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-core:jar:3.0.5.RELEASE:compile 
[INFO] | +- org.springframework:spring-asm:jar:3.0.5.RELEASE:compile 
[INFO] | \- commons-logging:commons-logging:jar:1.1.1:compile 
[INFO] +- org.springframework:spring-context:jar:3.0.5.RELEASE:compile 
[INFO] | \- org.springframework:spring-expression:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-beans:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-jdbc:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-orm:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-webmvc:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-agent:jar:2.5.6:compile 
[INFO] +- org.springframework:spring-aop:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework:spring-aspects:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework.security:spring-security-core:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework.security:spring-security-web:jar:3.0.5.RELEASE:compile 
[INFO] +- org.springframework.security:spring-security-cas-client:jar:3.0.5.RELEASE:compile 
[INFO] | \- org.jasig.cas:cas-client-core:jar:3.1.10:compile 
[INFO] +- org.springframework.security:spring-security-config:jar:3.0.5.RELEASE:compile 
[INFO] +- org.jasig.cas.client:cas-client-core:jar:3.2.0:compile 
[INFO] +- org.hibernate:hibernate-envers:jar:3.5.6-Final:compile 
[INFO] | +- org.hibernate:hibernate-core:jar:3.5.6-Final:compile 
[INFO] | | +- antlr:antlr:jar:2.7.6:compile 
[INFO] | | \- javax.transaction:jta:jar:1.1:compile 
[INFO] | +- org.hibernate.javax.persistence:hibernate-jpa-2.0-api:jar:1.0.0.Final:compile 
[INFO] | +- org.hibernate:hibernate-commons-annotations:jar:3.2.0.Final:compile 
[INFO] | +- org.hibernate:hibernate-annotations:jar:3.5.6-Final:compile 
[INFO] | \- org.hibernate:hibernate-tools:jar:3.2.0.ga:compile 
[INFO] |  +- org.beanshell:bsh:jar:2.0b4:compile 
[INFO] |  +- freemarker:freemarker:jar:2.3.8:compile 
[INFO] |  \- org.hibernate:jtidy:jar:r8-20060801:compile 
[INFO] +- org.hibernate:hibernate-entitymanager:jar:3.5.6-Final:compile 
[INFO] | \- cglib:cglib:jar:2.2:compile 
[INFO] |  \- asm:asm:jar:3.1:compile 
[INFO] +- org.hibernate:hibernate-c3p0:jar:3.5.6-Final:compile 
[INFO] +- org.hibernate:hibernate-validator:jar:4.1.0.Final:compile 
[INFO] | \- javax.validation:validation-api:jar:1.0.0.GA:compile 
[INFO] +- org.springframework:spring-hibernate3:jar:2.0.8:compile 
[INFO] +- org.slf4j:slf4j-api:jar:1.5.10:compile 
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.5.10:compile 
[INFO] +- javassist:javassist:jar:3.4.GA:compile 
[INFO] +- c3p0:c3p0:jar:0.9.1.2:compile 
[INFO] +- eu.medsea:utils:jar:1.0:compile 
[INFO] +- velocity-tools:velocity-tools-view:jar:1.4:compile 
[INFO] +- velocity:velocity:jar:1.5:compile 
[INFO] | +- commons-collections:commons-collections:jar:3.1:compile 
[INFO] | +- commons-lang:commons-lang:jar:2.1:compile 
[INFO] | \- oro:oro:jar:2.0.8:compile 
[INFO] +- axis:axis:jar:1.4:compile 
[INFO] | +- org.apache.axis:axis-jaxrpc:jar:1.4:compile 
[INFO] | +- org.apache.axis:axis-saaj:jar:1.4:compile 
[INFO] | \- commons-discovery:commons-discovery:jar:0.2:runtime 
[INFO] +- junit:junit:jar:4.8.2:compile 
[INFO] +- org.jmock:jmock-junit4:jar:2.5.1:compile 
[INFO] | \- org.jmock:jmock:jar:2.5.1:compile 
[INFO] |  +- org.hamcrest:hamcrest-core:jar:1.1:compile 
[INFO] |  \- org.hamcrest:hamcrest-library:jar:1.1:compile 
[INFO] +- xalan:xalan:jar:2.7.0:compile 
[INFO] | \- xml-apis:xml-apis:jar:1.0.b2:compile 
[INFO] +- xerces:xercesImpl:jar:2.4.0:compile 
[INFO] +- jdom:jdom:jar:1.0:compile 
[INFO] +- net.sourceforge.jexcelapi:jxl:jar:2.6:compile 
[INFO] +- log4j:log4j:jar:1.2.15:compile 
[INFO] +- jaxen:jaxen:jar:1.1.1:compile 
[INFO] | +- dom4j:dom4j:jar:1.6.1:compile 
[INFO] | \- xom:xom:jar:1.0:compile 
[INFO] |  +- xerces:xmlParserAPIs:jar:2.6.2:compile 
[INFO] |  \- com.ibm.icu:icu4j:jar:2.6.1:compile 
[INFO] +- mapquest:mapquest:jar:5.3.0:compile 
[INFO] +- jfree:jfreechart:jar:1.0.0:compile 
[INFO] | \- jfree:jcommon:jar:1.0.0:compile 
[INFO] +- org.fraid.fraid:fraid:jar:1.5:compile 
[INFO] +- com.thoughtworks.xstream:xstream:jar:1.3.1:compile 
[INFO] | \- xpp3:xpp3_min:jar:1.1.4c:compile 
[INFO] +- mysql:mysql-connector-java:jar:5.1.13:compile 
[INFO] +- joda-time:joda-time:jar:1.6:compile 
[INFO] +- nl.jqno.equalsverifier:equalsverifier:jar:0.6.2:test 
[INFO] | +- org.objenesis:objenesis:jar:1.1:test 
[INFO] | \- cglib:cglib-nodep:jar:2.2:test 
[INFO] +- org.easymock:easymockclassextension:jar:2.5.2:test 
[INFO] | \- org.easymock:easymock:jar:2.5.2:test 
[INFO] +- org.springframework:spring-test:jar:3.0.5.RELEASE:compile 
[INFO] +- cdyne:cdyne:jar:3.0:compile 
[INFO] | \- javax.xml:jaxrpc-api:jar:1.1:compile 
[INFO] +- json:json:jar:0.0.1:compile 
[INFO] +- org.dbunit:dbunit:jar:2.4.8:test 
[INFO] +- org.mongodb:mongo-java-driver:jar:2.2:compile 
[INFO] +- com.google.code.gson:gson:jar:1.4:compile 
[INFO] +- xml-security:xmlsec:jar:1.3.0:compile 
[INFO] \- javatar:javatar:jar:2.5:compile 

Answer 1

En su pregunta usted menciona que ha actualizado slf4j-api y slf4j-log4j12 a la versión 1.6.4 en el proyecto un pom 's. xml pero el árbol de dependencias que publicó menciona slf4j-api y slf4j-log4j12 versión 1.5.0. Siempre y cuando te conformes con una versión para que slf4j-api y la versión de su enlace coincida, estarás bien.

No importa qué versión de SLF4J declaren sus otras dependencias para SLF4J. Desde la perspectiva del cliente all versions of slf4j are binary compatible.

Answer 2

Los proyectos de jar para su inclusión como bibliotecas en otros proyectos no deben incluir nada en el POM que no sea slf4j-api. Depende del proyecto final (es decir, el proyecto A en su ejemplo) decidir sobre la implementación. Para probar el proyecto B, es aceptable incluir una implementación como slf4j-log4j12 y log4j en sí, pero deben tener el alcance test en Maven.