NoSuchMethodError Exception

[turmanticant]

Hey! I am trying to incorporate copybara into a bazel modules project. When I add copybara (from the bazel central registry) to my project and run bazel run @copybara//java/com/google/copybara -- (pwd)/copy.bara.sky --force I get this exception. The copy.bara.sky file has the same contents of the example in README.md.

bazel run @copybara//java/com/google/copybara -- (pwd)/copy.bara.sky --force
INFO: Analyzed target @@copybara+//java/com/google/copybara:copybara (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
Target @@copybara+//java/com/google/copybara:copybara up-to-date:
  bazel-bin/external/copybara+/java/com/google/copybara/copybara
  bazel-bin/external/copybara+/java/com/google/copybara/copybara.jar
INFO: Elapsed time: 0.082s, Critical Path: 0.01s
INFO: 1 process: 1 internal.
INFO: Build completed successfully, 1 total action
INFO: Running command line: bazel-bin/external/copybara+/java/com/google/copybara/copybara <args omitted>
Jan 25, 2025 10:38:38 PM com.google.copybara.Main configureLog
INFO: Setting up LogManager
Copybara source mover (Version: Unknown version)
Task: Git Origin: Initializing local repo
Exception in thread "main" java.lang.NoSuchMethodError: 'java.time.Duration com.google.common.base.Stopwatch.elapsed()'
        at com.google.copybara.util.CommandRunner.execute(CommandRunner.java:259)
        at com.google.copybara.git.GitRepository.executeGit(GitRepository.java:1723)
        at com.google.copybara.git.GitRepository.executeGit(GitRepository.java:1700)
        at com.google.copybara.git.GitRepository.git(GitRepository.java:1631)
        at com.google.copybara.git.GitRepository.init(GitRepository.java:1470)
        at com.google.copybara.git.GitOptions.initRepo(GitOptions.java:174)
        at com.google.copybara.git.GitOptions.createBareRepo(GitOptions.java:170)
        at com.google.copybara.git.GitOptions.cachedBareRepoForUrl(GitOptions.java:137)
        at com.google.copybara.git.GitOrigin.getRepository(GitOrigin.java:169)
        at com.google.copybara.git.GitOrigin.resolveStringRef(GitOrigin.java:271)
        at com.google.copybara.git.GitOrigin.resolve(GitOrigin.java:252)
        at com.google.copybara.git.GitOrigin.resolve(GitOrigin.java:66)
        at com.google.copybara.Workflow.lambda$run$0(Workflow.java:282)
        at com.google.copybara.GeneralOptions.repoTask(GeneralOptions.java:222)
        at com.google.copybara.Workflow.run(Workflow.java:281)
        at com.google.copybara.MigrateCmd.run(MigrateCmd.java:92)
        at com.google.copybara.MigrateCmd.run(MigrateCmd.java:69)
        at com.google.copybara.Main.runInternal(Main.java:246)
        at com.google.copybara.Main.run(Main.java:128)
        at com.google.copybara.Main.main(Main.java:106)

[chris-campos]

Looking at https://registry.bazel.build/modules/copybara, the Bazel Central Repository version is quite old. We don't officially maintain this release and this was likely uploaded by a third-party contributor.

The current recommendation is to compile Copybara from source. Weekly releases are being worked on, tracked here: #310

[turmanticant]

Thanks for the clarification! I should be able to use http_jar or archive_override to include it in my bazel workspace.

It would be convenient if y'all pushed to the bcr on release 😀

[turmanticant]

Circling back around to share the solution I ended up with.

I first attempted to use archive_override to import copybara directly, but I ran into errors. I didn't dig in to what was erroring, but switched to the artifact copybara_deploy.jar.

I added the jar to my module.

http_jar(
    name = "copybara",
    urls = ["https://github.com/google/copybara/releases/download/v20250210/copybara_deploy.jar"],
)

Then I added a java_binary target to make it runnable.

java_binary(
    name = "copybara",
    main_class = "com.google.copybara.Main",
    visibility = ["//:__subpackages__"],
    runtime_deps = ["@copybara//jar"],
)