RefNotFoundException is thrown when changing the git branch when using vertx-config-git

[pcloves]

Version

5.0.1

Context

I am using the vertx-config-git and add a git repo as a config store, it works fine. but when i change the git branch and restart the app, an exception is thrown as bellow:

io.vertx.core.VertxException: Unable to initialize the Git repository
	at io.vertx.config.git.GitConfigStore.<init>(GitConfigStore.java:128)
	at io.vertx.config.git.GitConfigStoreFactory.create(GitConfigStoreFactory.java:38)
	at io.vertx.config.impl.ConfigRetrieverImpl.<init>(ConfigRetrieverImpl.java:118)
	at io.vertx.config.ConfigRetriever.create(ConfigRetriever.java:52)
	at com.example.vertxStudy.ConfigVerticle.start(ConfigVerticle.kt:18)
	at io.vertx.kotlin.coroutines.CoroutineVerticle$start$1.invokeSuspend(CoroutineVerticle.kt:81)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:363)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
	at io.vertx.kotlin.coroutines.CoroutineVerticle.start(CoroutineVerticle.kt:79)
	at io.vertx.kotlin.coroutines.CoroutineVerticle.deploy(CoroutineVerticle.kt:54)
	at io.vertx.core.impl.deployment.DefaultDeployment.lambda$deploy$1(DefaultDeployment.java:183)
	at io.vertx.core.internal.ContextInternal.dispatch(ContextInternal.java:249)
	at io.vertx.core.internal.ContextInternal.dispatch(ContextInternal.java:231)
	at io.vertx.core.internal.ContextInternal.lambda$runOnContext$0(ContextInternal.java:50)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:507)
	at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:182)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1073)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: org.eclipse.jgit.api.errors.RefNotFoundException: Ref main cannot be resolved
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:222)
	at io.vertx.config.git.GitConfigStore.initializeGit(GitConfigStore.java:149)
	at io.vertx.config.git.GitConfigStore.<init>(GitConfigStore.java:126)
	... 29 more

Steps to reproduce

1. config a verticle, and add a ConfigRetriever containing git config store, as bellow:

    val configRetriever = ConfigRetriever.create(
      vertx, ConfigRetrieverOptions()
        .setIncludeDefaultStores(true)
        .setScanPeriod(1000)
        .addStore(
          ConfigStoreOptions()
            .setType("git")
            .setConfig(
              json {
                obj(
                  "url" to "git repo https url",
                  "path" to "../config/git/",
                  "branch" to "main",
                  "remote" to "origin",
                  "user" to "user",
                  "password" to "password",
                  "filesets" to array(
                    obj(
                      "pattern" to "*.yaml",
                      "format" to "yaml"
                    )
                  )
                )
              }
            )
        )
    )

2. deploy the verticle, it will works fine.
3. change the "branch" to "main" to some other git branch likes: "branch" to "dev", and restart the verticle
4. the exception is thrown as follow:

io.vertx.core.VertxException: Unable to initialize the Git repository
	at io.vertx.config.git.GitConfigStore.<init>(GitConfigStore.java:128)
	at io.vertx.config.git.GitConfigStoreFactory.create(GitConfigStoreFactory.java:38)
	at io.vertx.config.impl.ConfigRetrieverImpl.<init>(ConfigRetrieverImpl.java:118)
	at io.vertx.config.ConfigRetriever.create(ConfigRetriever.java:52)
	at com.example.vertxStudy.ConfigVerticle.start(ConfigVerticle.kt:18)
	at io.vertx.kotlin.coroutines.CoroutineVerticle$start$1.invokeSuspend(CoroutineVerticle.kt:81)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:363)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
	at io.vertx.kotlin.coroutines.CoroutineVerticle.start(CoroutineVerticle.kt:79)
	at io.vertx.kotlin.coroutines.CoroutineVerticle.deploy(CoroutineVerticle.kt:54)
	at io.vertx.core.impl.deployment.DefaultDeployment.lambda$deploy$1(DefaultDeployment.java:183)
	at io.vertx.core.internal.ContextInternal.dispatch(ContextInternal.java:249)
	at io.vertx.core.internal.ContextInternal.dispatch(ContextInternal.java:231)
	at io.vertx.core.internal.ContextInternal.lambda$runOnContext$0(ContextInternal.java:50)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:507)
	at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:182)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1073)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: org.eclipse.jgit.api.errors.RefNotFoundException: Ref main cannot be resolved
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:222)
	at io.vertx.config.git.GitConfigStore.initializeGit(GitConfigStore.java:149)
	at io.vertx.config.git.GitConfigStore.<init>(GitConfigStore.java:126)
	... 29 more

I've done some research and found the location the code

        git.checkout()
          .setName(branch)
          .setCreateBranch(true)  //this line is missing                      <----------------
          .setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK)
          .setStartPoint(remote + "/" + branch)
          .call();

Do you have a reproducer?

No response