I have been following the tutorial by Lars Vogel [https://www.vogella.com/tutorials/EclipseTycho/article.html#google_vignette]. I am currently stuck on a compilation error for the RCP plugin project :
Software being installed: ... requires 'osgi.ee; (&(osgi.ee=JavaSE)(version=22))' but it could not be found. There is plenty of talk about it but I am yet to see the solution. I am wondering if the Eclipse version : Version: 2024-06 (4.32.0) does have a solution to the above mentioned issue. Most conversation about the problem are on the level that is beyond my comprehension. Below is my aggregator pom file:
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.vogella.tycho</groupId>
<artifactId>releng</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<tycho.version>4.0.8</tycho.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>21</maven.compiler.source>
<maven.compiler.target>21</maven.compiler.target>
</properties>
<!--repositories>
<repository>
<id>eclipse</id>
<url>http://localhost:8080/site</url>
<layout>p2</layout>
</repository>
</repositories-->
<!--repositories>
<repository>
<id>my-repo1</id>
<name>your custom repo</name>
<url>https://mvnrepository.com/artifact/at.bestsolution.efxclipse.eclipse/javax.annotation</url>
</repository-->
<modules>
<module>MyFeature</module>
<module>MyPlugin</module>
<module>updatesite</module>
</modules>
<dependencies>
<!--
https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api -->
<!--dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>com.google.code.findbugs</groupId>
<artifactId>jsr305</artifactId>
<version>3.0.2</version>
</dependency-->
<dependency>
<groupId>jakarta.annotation</groupId>
<artifactId>jakarta.annotation-api</artifactId>
<version>2.1.1</version>
<scope>provided</scope>
</dependency>
<!--dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.annotation</artifactId>
<version>3.0</version>
</dependency-->
<!-- https://mvnrepository.com/artifact/org.osgi.ee/ee.foundation -->
<!-- https://mvnrepository.com/artifact/org.osgi/org.osgi.core -->
<!-- https://mvnrepository.com/artifact/org.osgi.ee/ee.minimum -->
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-p2-director-plugin</artifactId>
<version>${tycho.version}</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-maven-plugin</artifactId>
<version>${tycho.version}</version>
<extensions>true</extensions>
</plugin>
<!--Enable the replacement of the SNAPSHOT version in the final product configuration-->
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-packaging-plugin</artifactId>
<version>${tycho.version}</version>
<executions>
<execution>
<phase>package</phase>
<id>package-feature</id>
<configuration>
<finalName>
${project.artifactId}_${unqualifiedVersion}.${buildQualifier}</finalName>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>target-platform-configuration</artifactId>
<version>${tycho.version}</version>
<configuration>
<pomDependencies>wrapAsBundle</pomDependencies>
<!-- Optional set the Java version you are using-->
<executionEnvironment>JavaSE-21</executionEnvironment>
<target>
<file>../TargetDefinition/myTarget.target</file>
</target>
<environments>
<environment>
<os>linux</os>
<ws>gtk</ws>
<arch>x86_64</arch>
</environment>
<environment>
<os>win32</os>
<ws>win32</ws>
<arch>x86_64</arch>
</environment>
<environment>
<os>macosx</os>
<ws>cocoa</ws>
<arch>x86_64</arch>
</environment>
</environments>
</configuration>
</plugin>
</plugins>
</build>
</project>
The error requires 'osgi.ee; (&(osgi.ee=JavaSE)(version=22)) (osgi.ee: OSGi execution environment) means that a plugin/bundle requires Java 22 by having in its META-INF/MANIFEST.MF the line Bundle-RequiredExecutionEnvironment: JavaSE-22, which is not made available in your Maven/Tycho build: in your POM, in the configuration of the target-platform-configuration you specified <executionEnvironment>JavaSE-21</executionEnvironment>, hence the error.
Use one of the following solutions (I would recommend the first solution since no long time support is provided for Java 22 in contrast to Java 21):
META-INF/MANIFEST.MF file changing the line Bundle-RequiredExecutionEnvironment: JavaSE-22 to Bundle-RequiredExecutionEnvironment: JavaSE-21<executionEnvironment>JavaSE-21</executionEnvironment> to <executionEnvironment>JavaSE-22</executionEnvironment> (and make sure to run your Maven build with Java 22 or higher)<executionEnvironment>JavaSE-21</executionEnvironment> to <resolveWithExecutionEnvironmentConstraints>false</resolveWithExecutionEnvironmentConstraints> (and make sure to run your Maven build with Java or higher)See also Tycho org.eclipse.tycho:target-platform-configuration documentation.