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<h1>Maven, Ivy, Gradle, and SBT Artifacts</h1>
<p>Log4j 2 is broken up in an API and an implementation (core), where the API
provides the interface that applications should code to.
Strictly speaking Log4j core is only needed at runtime and not at compile time.</p>
<p>However, below we list Log4j core as a compile time dependency
to improve the startup time for <a href="manual/plugins.html">custom plugins</a> as it provides an
annotation processor that generates a metadata file to cache plugin information as well
as the necessary code to compile against to create custom plugins.</p><section>
<h2><a name="Using_Log4j_in_your_Apache_Maven_build"></a>Using Log4j in your Apache Maven build</h2>
<p>To build with <a class="externalLink" href="https://maven.apache.org/">Apache Maven</a>, add the dependencies listed below to your
<code>pom.xml</code> file.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-api&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-core&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div></section><section>
<h2><a name="Using_Log4j_in_your_Apache_Ivy_build"></a>Using Log4j in your Apache Ivy build</h2>
<p>To build with <a class="externalLink" href="https://ant.apache.org/ivy/">Apache Ivy</a>, add the dependencies listed below to your
<code>ivy.xml</code> file.</p>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-api&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-core&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div></section><section>
<h2><a name="Using_Log4j_in_your_Gradle_build"></a>Using Log4j in your Gradle build</h2>
<p>To build with <a class="externalLink" href="https://gradle.org/">Gradle</a>, add the dependencies listed below to your
<code>build.gradle</code> file.</p>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-api:2.23.1'
implementation 'org.apache.logging.log4j:log4j-core:2.23.1'
}
</code></pre></div></section><section>
<h2><a name="Using_Log4j_in_your_SBT_build"></a>Using Log4j in your SBT build</h2>
<p>To build with <a class="externalLink" href="http://www.scala-sbt.org/">SBT</a>, add the dependencies listed below to your <code>build.sbt</code> file.</p>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-api&quot; % &quot;2.23.1&quot;
libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-core&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h2><a name="Maven_Bill_of_Materials_.28BOM.29"></a>Maven Bill of Materials (BOM)</h2>
<p>To keep your Log4j module versions aligned, a <a class="externalLink" href="https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#bill-of-materials-bom-poms">Maven Bill of Materials (BOM) POM</a> is provided for your convenience.</p>
<p>To use this with Maven, add the dependency listed below to your <code>pom.xml</code> file.
Note that the <code>&lt;dependencyManagement&gt;</code> nesting and the <code>&lt;scope&gt;import&lt;/scope&gt;</code> instruction.
This will <i>import</i> all modules bundled with the associated Log4j release to your <code>dependencyManagement</code>.
As a result, you don't have to specify versions of the imported modules (<code>log4j-api</code>, <code>log4j-core</code>, etc.) while adding them using <code>&lt;dependency&gt;</code> elements.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencyManagement&gt;
&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-bom&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;scope&gt;import&lt;/scope&gt;
&lt;type&gt;pom&lt;/type&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
&lt;/dependencyManagement&gt;
</code></pre></div>
<p>Gradle 5.0+ supports importing Maven BOM as a <a class="externalLink" href="https://docs.gradle.org/current/userguide/platforms.html#sub:bom_import">platform</a>
to align dependency versions.</p>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation platform('org.apache.logging.log4j:log4j-bom:2.23.1')
implementation 'org.apache.logging.log4j:log4j-api'
runtimeOnly 'org.apache.logging.log4j:log4j-core'
// etc.
}
</code></pre></div>
<p>To use this with Gradle 2.8-4.10, an additional <a class="externalLink" href="https://github.com/spring-gradle-plugins/dependency-management-plugin">Gradle plugin</a>
is required for dependency management functionality.</p>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>plugins {
id 'io.spring.dependency-management' version '1.0.15.RELEASE'
}
dependencyManagement {
imports {
mavenBom 'org.apache.logging.log4j:log4j-bom:2.23.1'
}
}
dependencies {
// For Gradle 2.8-3.3 use compile/runtime instead of implementation/runtimeOnly
implementation 'org.apache.logging.log4j:log4j-api'
runtimeOnly 'org.apache.logging.log4j:log4j-core'
// etc.
}
</code></pre></div></section><section>
<h2><a name="CycloneDX_Software_Bill_of_Materials_.28SBOM.29"></a>CycloneDX Software Bill of Materials (SBOM)</h2>
<p>Starting with version <code>2.22.0</code>, Log4j distributes <a class="externalLink" href="https://cyclonedx.org/capabilities/sbom/">CycloneDX Software Bill of Materials (SBOM)</a> along with each deployed artifact.
This is streamlined by <code>logging-parent</code>, see <a class="externalLink" href="https://logging.apache.org/logging-parent/latest/#cyclonedx-sbom">its website</a> for details.</p></section><section>
<h2><a name="Optional_Components"></a>Optional Components</h2>
<p>Log4j 2.x contains several optional components that can be included in an application.</p><section>
<h3><a name="Log4j_1.x_API_Bridge"></a>Log4j 1.x API Bridge</h3>
<p>If existing components use Log4j 1.x and you want to have this logging routed to Log4j 2,
then remove any log4j 1.x dependencies and add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-1.2-api&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-1.2-api&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-1.2-api:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-1.2-api&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Apache_Commons_Logging_Bridge"></a>Apache Commons Logging Bridge</h3>
<p>If existing components use Apache Commons Logging 1.x and you want to have this logging routed to Log4j 2,
then add the following but do not remove any Commons Logging 1.x dependencies.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-jcl&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-jcl&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-jcl:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-jcl&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="SLF4J_Bridge"></a>SLF4J Bridge</h3>
<p>If existing components use SLF4J and you want to have this logging routed to Log4j 2, then add the
following but do not remove any SLF4J dependencies.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-slf4j-impl&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-slf4j-impl&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-slf4j-impl:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-slf4j-impl&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="JUL_Adapter"></a>JUL Adapter</h3>
<p>If existing components use Java Util Logging and you want to have this logging routed to Log4j 2,
then add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-jul&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-jul&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-jul:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-jul&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Web_Servlet_Support"></a>Web Servlet Support</h3>
<p>In order to properly support and handle the ClassLoader environment and container lifecycle of a web
application, an additional module is required. This module is only required at runtime. In addition, if
you're using servlets in an OSGi environment, make sure your preferred version of the servlet API is
already available (e.g., if you want to use 3.0, but you've also got 2.5 loaded, make sure both are
loaded).</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-web&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-web&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-web:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-web&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Tag_Library"></a>Tag Library</h3>
<p>The Log4j Log Tag Library creates the capability of inserting log statements in JSPs without
the use of Java scripting. It uses the standard Log4j 2 API to log messages according to
your Log4j configuration.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-taglib&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-taglib&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-taglib:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-taglib&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Apache_Flume_Appender"></a>Apache Flume Appender</h3>
<p>The Flume Appender allows applications to send events to Flume Agents.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-flume-ng&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-flume-ng&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-flume-ng:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-flume-ng&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Log4j_to_SLF4J_Adapter"></a>Log4j to SLF4J Adapter</h3>
<p>The Log4j 2 to SLF4J Adapter allows applications coded to the Log4j 2 API to be routed to SLF4J. Use of this
adapter may cause some loss of performance as the Log4j 2 Messages must be formatted before they can be passed
to SLF4J. The SLF4J Bridge must NOT be on the class path when this is in use.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-to-slf4j&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-to-slf4j&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-to-slf4j:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-to-slf4j&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="CouchDB"></a>CouchDB</h3>
<p>If your configuration uses the NoSQL CouchDB appender, then add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-couchdb&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-couchdb&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-couchdb:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-couchdb&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="MongoDB"></a>MongoDB</h3>
<p>If your configuration uses the NoSQL MongoDB appender, then add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-mongodb&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-mongodb&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-mongodb:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-mongodb&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="Cassandra"></a>Cassandra</h3>
<p>If your configuration uses the Cassandra appender, then add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-cassandra&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-cassandra&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-cassandra:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-cassandra&quot; % &quot;2.23.1&quot;
</code></pre></div></section><section>
<h3><a name="IO_Streams"></a>IO Streams</h3>
<p>Log4j IO Streams allow applications to have data that is written to an OutputStream
or a Writer be redirected to a Logger, or have data that is read from an InputStream or
a Reader be wiretapped by a Logger. To use IO Streams, add the following.</p>
<p><code>pom.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.logging.log4j&lt;/groupId&gt;
&lt;artifactId&gt;log4j-iostreams&lt;/artifactId&gt;
&lt;version&gt;2.23.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>ivy.xml</code></p>
<div class="source"><pre class="prettyprint"><code>&lt;dependencies&gt;
&lt;dependency org=&quot;org.apache.logging.log4j&quot; name=&quot;log4j-iostreams&quot; rev=&quot;2.23.1&quot; /&gt;
&lt;/dependencies&gt;
</code></pre></div>
<p><code>build.gradle</code></p>
<div class="source"><pre class="prettyprint"><code>dependencies {
implementation 'org.apache.logging.log4j:log4j-iostreams:2.23.1'
}
</code></pre></div>
<p><code>build.sbt</code></p>
<div class="source"><pre class="prettyprint"><code>libraryDependencies += &quot;org.apache.logging.log4j&quot; % &quot;log4j-iostreams&quot; % &quot;2.23.1&quot;
</code></pre></div></section></section><section>
<h2><a name="Snapshot_builds"></a>Snapshot builds</h2>
<p>You can access the latest development snapshot by using the Maven repository
<code>https://repository.apache.org/snapshots</code> and the current SNAPSHOT version.
Generally, the <code>main</code> branch will use the next patch version as its snapshot
version regardless of what the next actual version of Log4j will be. For example,
if the latest release were <code>2.0</code>, then <code>main</code> would be using the version
<code>2.0.1-SNAPSHOT</code>. Always verify with <code>pom.xml</code> in the <code>main</code> branch as described
in the <a href="source-repository.html">source repository page</a>.</p><section>
<h3><a name="Maven"></a>Maven</h3>
<p>Maven users can add the following to their <code>pom.xml</code> to enable snapshots:</p>
<div class="source"><pre class="prettyprint"><code>&lt;repositories&gt;
&lt;repository&gt;
&lt;id&gt;apache.snapshots&lt;/id&gt;
&lt;name&gt;Apache Snapshot Repository&lt;/name&gt;
&lt;url&gt;https://repository.apache.org/snapshots&lt;/url&gt;
&lt;releases&gt;
&lt;enabled&gt;false&lt;/enabled&gt;
&lt;/releases&gt;
&lt;/repository&gt;
&lt;/repositories&gt;
</code></pre></div></section><section>
<h3><a name="Gradle"></a>Gradle</h3>
<p>Gradle users can add the following to their <code>build.gradle</code> to enable snapshots:</p>
<div class="source"><pre class="prettyprint"><code>repositories {
mavenCentral()
maven { url 'https://repository.apache.org/snapshots' }
}
</code></pre></div></section><section>
<h3><a name="SBT"></a>SBT</h3>
<p>SBT users can add the following to their <code>build.sbt</code> to enable snapshots:</p>
<div class="source"><pre class="prettyprint"><code>resolvers += &quot;Apache Snapshot Repository&quot; at &quot;https://repository.apache.org/snapshots&quot;
</code></pre></div></section></section>
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