blocks|key|3002862|text|虽然过时了，但我认为this+SO+discussion是相关的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3002863|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/3365201^0|A|I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Though dated, I think <a href="https://stackoverflow.com/questions/3365201">this SO discussion</a> is related.

blocks|key|3216183|text|maven-enforcer-plugin有一个dependencyConvergence配置，它可以做我想要的事情。巧合的是，文档中的示例使用slf4j。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3216184|按如下方式配置：|3216185|<plugin>
++++<groupId>org.apache.maven.plugins</groupId>
++++<artifactId>maven-enforcer-plugin</artifactId>
++++<version>1.0</version>
++++<executions>
++++++++<execution>
++++++++++++<id>enforce</id>
++++++++++++<configuration>
++++++++++++++++<rules>+
++++++++++++++++++++<DependencyConvergence+/>
++++++++++++++++</rules>
++++++++++++</configuration>
++++++++++++<goals>+
++++++++++++++++<goal>enforce</goal>
++++++++++++</goals>
++++++++</execution>
++++</executions>
</plugin>|code-block|syntax|javascript|3216186|这种依赖关系的组合将导致构建失败：|3216187|++<dependencies>
++++<dependency>
++++++<groupId>org.slf4j</groupId>
++++++<artifactId>slf4j-jdk14</artifactId>
++++++<version>1.6.1</version>
++++</dependency>
++++<dependency>
++++++<groupId>org.slf4j</groupId>
++++++<artifactId>slf4j-nop</artifactId>
++++++<version>1.6.0</version>
++++</dependency>
++</dependencies>++|3216188|在编译过程中对此进行记录：|3216189|[ERROR]
Dependency+convergence+error+for+org.slf4j:slf4j-api:1.6.1+paths+to+dependency+are:
%2B-org.myorg:my-project:1.0.0-SNAPSHOT
++%2B-org.slf4j:slf4j-jdk14:1.6.1
++++%2B-org.slf4j:slf4j-api:1.6.1
and
%2B-org.myorg:my-project:1.0.0-SNAPSHOT
++%2B-org.slf4j:slf4j-nop:1.6.0
++++%2B-org.slf4j:slf4j-api:1.6.0|3216190|entityMap|0|LINK|mutability|MUTABLE|url|http://maven.apache.org/enforcer/enforcer-rules/dependencyConvergence.html^0|O|L|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]]|C|$]]|$1|D|3|E|5|6|7|14|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|15|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|16|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|17|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|18|8|@]|9|@]|C|$]]|$1|Q|3|R|5|H|7|19|8|@]|9|@]|C|$I|J]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]]]

The maven-enforcer-plugin has a <a href="http://maven.apache.org/enforcer/enforcer-rules/dependencyConvergence.html" rel="noreferrer">dependencyConvergence</a> configuration which does what I want. Coincidentally, the example from the documentation uses slf4j.

Configure it like this:

<pre><code>&lt;plugin&gt;
 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
 &lt;artifactId&gt;maven-enforcer-plugin&lt;/artifactId&gt;
 &lt;version&gt;1.0&lt;/version&gt;
 &lt;executions&gt;
 &lt;execution&gt;
 &lt;id&gt;enforce&lt;/id&gt;
 &lt;configuration&gt;
 &lt;rules&gt; 
 &lt;DependencyConvergence /&gt;
 &lt;/rules&gt;
 &lt;/configuration&gt;
 &lt;goals&gt; 
 &lt;goal&gt;enforce&lt;/goal&gt;
 &lt;/goals&gt;
 &lt;/execution&gt;
 &lt;/executions&gt;
&lt;/plugin&gt;
</code></pre>

This combination of dependencies will cause a build to fail:

<pre><code> &lt;dependencies&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
 &lt;artifactId&gt;slf4j-jdk14&lt;/artifactId&gt;
 &lt;version&gt;1.6.1&lt;/version&gt;
 &lt;/dependency&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
 &lt;artifactId&gt;slf4j-nop&lt;/artifactId&gt;
 &lt;version&gt;1.6.0&lt;/version&gt;
 &lt;/dependency&gt;
 &lt;/dependencies&gt; 
</code></pre>

With this being logged during compilation:

<pre><code>[ERROR]
Dependency convergence error for org.slf4j:slf4j-api:1.6.1 paths to dependency are:
+-org.myorg:my-project:1.0.0-SNAPSHOT
 +-org.slf4j:slf4j-jdk14:1.6.1
 +-org.slf4j:slf4j-api:1.6.1
and
+-org.myorg:my-project:1.0.0-SNAPSHOT
 +-org.slf4j:slf4j-nop:1.6.0
 +-org.slf4j:slf4j-api:1.6.0
</code></pre>

I ran mvn dependency:tree for a project and I saw output like the following:

<pre><code>[INFO] my:project:jar:1.0.0-SNAPSHOT
[INFO] +- some.other:library:jar:2.0.0:compile
[INFO] | \- org.slf4j:slf4j-api:jar:1.6.1:compile
[INFO] +- org.slf4j:slf4j-simple:jar:1.6.0:compile
[INFO] | \- (org.slf4j:slf4j-api:jar:1.6.0:compile - omitted for conflict with 1.6.1)
</code></pre>

This is a bad state to be in because my project depends directly on slf4j 1.6.0 and some library that we depend on transitively depends on slf4j 1.6.1. These two versions happen to be binary compatible so the build passes without any warnings. Is there a way to get Maven to be more strict about its dependency resolution so that I could configure a new build that would fail in this scenario? In this case, the solution would be to just update our dependency to the newer version of slf4j.

How to break a maven build when there is a dependency conflict?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我为一个项目运行了mvn dependency:tree，我看到了如下输出：[INFO] my:project:jar:1.0.0-SNAPSHOT[INFO] +- some.other:library:jar:2.0.0:compile[INFO] |  \- org.slf4j:slf4j-api:jar:1.6...

问当存在依赖冲突时，如何中断maven构建？
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