log4j-api/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ~ Licensed to the Apache Software Foundation (ASF) under one or more
  ~ contributor license agreements.  See the NOTICE file distributed with
  ~ this work for additional information regarding copyright ownership.
  ~ The ASF licenses this file to you under the Apache License, Version 2.0
  ~ (the "License"); you may not use this file except in compliance with
  ~ the License.  You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${revision}</version>
    <relativePath>../log4j-parent</relativePath>
  </parent>

  <artifactId>log4j-api</artifactId>

  <name>Apache Log4j API</name>

  <description>The logging API of the Log4j project.
    Library and application code can log through this API.
    It contains a simple built-in implementation (`SimpleLogger`) for trivial use cases.
    Production applications are recommended to use Log4j API in combination with a fully-fledged implementation, such as Log4j Core.</description>

  <properties>
    <maven.javadoc.skip>false</maven.javadoc.skip>

    <!--
      ~ OSGi and JPMS options
      -->
    <bnd-multi-release>true</bnd-multi-release>
    <!-- Differs from OSGi bundle name -->
    <bnd-module-name>org.apache.logging.log4j</bnd-module-name>
    <bnd-extra-package-options>
      <!-- Not exported by most OSGi system bundles, hence we use the system classloader to load `sun.reflect.Reflection` -->
      !sun.reflect,
      <!-- Annotations only -->
      org.jspecify.*;resolution:=optional
    </bnd-extra-package-options>
    <bnd-extra-module-options>
      <!-- Used in StringBuilders through reflection -->
      java.sql;static=true,
      <!-- Used in ProcessIdUtil through reflection -->
      java.management;static=true,
      <!-- Remove `transitive` for optional dependencies -->
      org.jspecify;transitive=false
    </bnd-extra-module-options>

  </properties>
  <dependencies>

    <dependency>
      <groupId>org.jspecify</groupId>
      <artifactId>jspecify</artifactId>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>org.osgi</groupId>
      <artifactId>org.osgi.core</artifactId>
      <scope>provided</scope>
    </dependency>
  </dependencies>
  <build>
    <plugins>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <executions>
          <!-- Compiles the Java 9 variants of some classes to `META-INF/versions/9`.
               Bound to `prepare-package` so that `bnd-maven-plugin` (running at `process-classes`)
               does not see the versioned classes.
               The `Multi-Release: true` manifest entry is provided by the `bnd-multi-release` property above. -->
          <execution>
            <id>compile-java9</id>
            <goals>
              <goal>compile</goal>
            </goals>
            <phase>prepare-package</phase>
            <configuration>
              <release>9</release>
              <compileSourceRoots>
                <compileSourceRoot>${project.basedir}/src/main/java9</compileSourceRoot>
              </compileSourceRoots>
              <multiReleaseOutput>true</multiReleaseOutput>
            </configuration>
          </execution>
        </executions>
      </plugin>

    </plugins>
  </build>
</project>