[BUG][REG 1.18.32] A required class was missing while executing org.eclipse.tycho:tycho-compiler-plugin:4.0.7:compile: org/eclipse/jdt/internal/compiler/parser/Parser

[bllngr]

Describe the bug Compiling a test project with Tycho 4.0.7 and Lombok (both 1.18.32 and edge) fails with an error:

[ERROR] Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:4.0.7:compile (default-compile) on project com.vogella.logging.config: Execution default-compile of goal org.eclipse.tycho:tycho-compiler-plugin:4.0.7:compile failed: A required class was missing while executing org.eclipse.tycho:tycho-compiler-plugin:4.0.7:compile: org/eclipse/jdt/internal/compiler/parser/Parser
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.eclipse.tycho:tycho-compiler-plugin:4.0.7
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/D:/.m2/repository/org/eclipse/tycho/tycho-compiler-plugin/4.0.7/tycho-compiler-plugin-4.0.7.jar
[ERROR] urls[1] = [...]

To Reproduce

git clone https://github.com/bllngr/tycho-lombok-example
cd tycho-lombok-example
git switch lombok
export MAVEN_OPTS="-javaagent:${PWD}/bundles/org.projectlombok.lombok/lombok-1.18.32.jar"
mvn clean install -DskipTests

Expected behavior Compilation succeeds without errors.

Version info (please complete the following information):

• Lombok version 1.18.32 and edge
• Platform:

  Apache Maven 3.9.6 (bc0240f3c744dd6b6ec2920b3cd08dcc295161ae)
  Maven home: C:\maven
  Java version: 21.0.3, vendor: Azul Systems, Inc., runtime: C:\Program Files\Zulu\zulu-21
  Default locale: en_GB, platform encoding: UTF-8
  OS name: "windows 11", version: "10.0", arch: "amd64", family: "windows"

Additional context With older Lombok versions like 1.18.30, compilation succeeds (and then fails at the materialize step, but this is a problem with the project and not Lombok)

[Olli-Lolli]

I have the same issue with the current version and I was able to identify the commit d6ee06c5 as the one which broke it.

[bllngr]

Sorry, I completely forgot about this issue. We've since solved the issue by adding some dependencies to pom.xml. I don't know which exactly where responsible, but on of those must have solved it:

• Added Lombok as a dependency in the main pom.xml:

  <dependencies>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.32</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

• Added Lombok and JDT as dependencies for tycho-compiler-plugin

  <plugin>
    <groupId>org.eclipse.tycho</groupId>
    <artifactId>tycho-compiler-plugin</artifactId>
    <version>${tycho.version}</version>
  
    <!-- [...] -->
  
    <dependencies>
      <dependency>
        <groupId>org.eclipse.jdt</groupId>
        <artifactId>ecj</artifactId>
        <version>3.38.0</version>
      </dependency>
  
      <dependency>
        <groupId>org.eclipse.jdt</groupId>
        <artifactId>org.eclipse.jdt.core</artifactId>
        <version>3.38.0</version>
      </dependency>
  
      <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.32</version>
      </dependency>
    </dependencies>
  </plugin>

Could you test it and report back here? If it works, I'll update my example.

[ChristianHoesel]

@bllngr I can confirm, that your additions are working, but I would call this a workaround