Eclipse CDT build and export JAR as plugin

[VenoVeno]

Hi,
After cloning the cdt source, i have to modify source and build and export as plugin as available in https://download.eclipse.org/tools/cdt/releases/11.5/cdt-11.5.0/plugins.

Can anyone share the command the build from source and export as plugin.

Thanks.

[jonahgraham]

Please see the building docs, in particular the first section shows the command you need, quoted here for your convenience:

Eclipse CDT uses the standard Maven and Tycho workflow for building CDT using Maven 3.9 and Java 21. Therefore to package CDT do:

mvn package

and the resulting p2 repository will be in releng/org.eclipse.cdt.repo/target/repository

[VenoVeno]

@jonahgraham

Java version

openjdk version "21.0.2" 2024-01-16
OpenJDK Runtime Environment (build 21.0.2+13-Ubuntu-122.04.1)
OpenJDK 64-Bit Server VM (build 21.0.2+13-Ubuntu-122.04.1, mixed mode, sharing)

Maven version

Apache Maven 3.9.6 (bc0240f3c744dd6b6ec2920b3cd08dcc295161ae)
Maven home: /home/user/Documents/apache-maven-3.9.6-bin
Java version: 21.0.2, vendor: Private Build, runtime: /usr/lib/jvm/java-21-openjdk-amd64
Default locale: en_IN, platform encoding: UTF-8
OS name: "linux", version: "5.15.0-58-generic", arch: "amd64", family: "unix"

JAVA_HOME

/usr/lib/jvm/java-21-openjdk-amd64

Everything is set correctly, but when i run mvn package, i'm getting error.

Unknown OSGi execution environment: 'JavaSE-21'. Click to expand for stack trace.

``` [ERROR] Internal error: org.eclipse.tycho.core.ee.UnknownEnvironmentException: Unknown OSGi execution environment: 'JavaSE-21' -> [Help 1] org.apache.maven.InternalErrorException: Internal error: org.eclipse.tycho.core.ee.UnknownEnvironmentException: Unknown OSGi execution environment: 'JavaSE-21' at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:109) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103) at java.lang.reflect.Method.invoke (Method.java:580) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348) Caused by: org.eclipse.tycho.core.ee.UnknownEnvironmentException: Unknown OSGi execution environment: 'JavaSE-21' at org.eclipse.tycho.core.ee.ExecutionEnvironmentUtils.getExecutionEnvironment (ExecutionEnvironmentUtils.java:96) at org.eclipse.tycho.core.osgitools.OsgiBundleProject.applyBestOfCurrentOrConfiguredProfile (OsgiBundleProject.java:653) at org.eclipse.tycho.core.osgitools.OsgiBundleProject.readExecutionEnvironmentConfiguration (OsgiBundleProject.java:623) at org.eclipse.tycho.core.resolver.DefaultTychoResolver.setupProject (DefaultTychoResolver.java:108) at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead (TychoMavenLifecycleParticipant.java:111) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:223) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103) at java.lang.reflect.Method.invoke (Method.java:580) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348) [ERROR] [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException [DEBUG] Shutting down adapter factory; available factories [file-lock, rwlock-local, semaphore-local, noop]; available name mappers [discriminating, file-gav, file-hgav, file-static, gav, static] [DEBUG] Shutting down 'file-lock' factory [DEBUG] Shutting down 'rwlock-local' factory [DEBUG] Shutting down 'semaphore-local' factory [DEBUG] Shutting down 'noop' factory ```

[jonahgraham]

Is this running against current HEAD of CDT or some older version of CDT? CDT is built with Java 21 now, but older releases used Java 17.

[VenoVeno]

Cloned from latest master and tried building with Java 21.

[jonahgraham]

I have nearly identical setup:

$ mvn --version
Apache Maven 3.9.6 (bc0240f3c744dd6b6ec2920b3cd08dcc295161ae)
Maven home: /scratch/maven/apache-maven-3.9.6
Java version: 21.0.2, vendor: Eclipse Adoptium, runtime: /usr/lib/jvm/jdk-21.0.2+13
Default locale: en_CA, platform encoding: UTF-8
OS name: "linux", version: "5.15.0-106-generic", arch: "amd64", family: "unix"

and it builds fine with output similar to what you see on build machine here

Normally that error indicates java version mismatches. Can you provide (perhaps as an attached text file) the full log of what you are seeing. Please add extra mvn command line arguments as follows: mvn --show-version --debug --batch-mode package

[VenoVeno]

It's working with latest main branch. But when i try with other branches 11_5, it failing.

[jonahgraham]

CDT is built with Java 21 now, but older releases used Java 17.