java 9 module reads package X from A and B

spring spring-boot gradle java-9 java-module
Amar Dev picture Amar Dev · Jun 9, 2017 · Viewed 7.1k times · Source

I am trying to use spring boot with java 9 and gradle. I am unable to run my simple code, I get the below mentioned error :-

Information:java: Errors occurred while compiling module 'Java9Gradle_main'
Information:javac 9-ea was used to compile java sources
Information:6/9/2017 10:40 PM - Compilation completed with 65 errors and 0 warnings in 15s 200ms
Error:java: module  reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module  reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.web reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.web reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.autoconfigure reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.autoconfigure reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.logging reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.logging reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.core reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.core reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module snakeyaml reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module snakeyaml reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.tomcat reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter.tomcat reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module hibernate.validator reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module hibernate.validator reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jackson.databind reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jackson.databind reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.web reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.web reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.webmvc reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.webmvc reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.context reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.context reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module logback.classic reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module logback.classic reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jcl.over.slf4j reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jcl.over.slf4j reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jul.to.slf4j reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jul.to.slf4j reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module log4j.over.slf4j reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module log4j.over.slf4j reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module commons.logging reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module commons.logging reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.core reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.core reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.el reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.el reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.websocket reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module tomcat.embed.websocket reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module validation.api reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module validation.api reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jboss.logging reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jboss.logging reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module classmate reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module classmate reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jackson.annotations reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jackson.annotations reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module jackson.core reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module jackson.core reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.aop reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.aop reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.beans reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.beans reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.expression reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.expression reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module logback.core reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module logback.core reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module slf4j.api reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module slf4j.api reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot.starter reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging
Error:java: module spring.boot reads package org.apache.commons.logging.impl from both jcl.over.slf4j and commons.logging
D:\project\Java9Gradle\src\main\java\module-info.java
Error:(1, 1) java: module Java9Gradle.main reads package org.apache.commons.logging from both jcl.over.slf4j and commons.logging

My dependencies file and the module-info.java file are very straight forward.

module Java9Gradle.main {
    requires spring.boot;
}


group 'Java9Gradle'
version '1.0-SNAPSHOT'

apply plugin: 'java'

sourceCompatibility = 1.9

repositories {
    mavenCentral()
}

dependencies {
    // https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter
    compile group: 'org.springframework.boot', name: 'spring-boot-starter', version: '1.5.3.RELEASE'
    // https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '1.5.3.RELEASE'
    testCompile group: 'junit', name: 'junit', version: '4.12'
}

Can someone please help??

Thanks,

Amar

Answer

Amar Dev picture Amar Dev · Jun 9, 2017

Excluding the transitive dependency made it work and adjusting the module-info.java too!!!

compile("org.springframework.boot:spring-boot-starter:1.5.3.RELEASE") {
        exclude group: 'commons-logging', module: 'commons-logging'
    }
    compile("org.springframework.boot:spring-boot-starter-web:1.5.3.RELEASE"){
        exclude group: 'commons-logging', module: 'commons-logging'
    }

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