java - 使用 Kotlin 构建 Guava 依赖打破 Jar

Question

问题

Java/Kotlin 应用程序按预期在 IntelliJ IDE 的主类中运行。但是，当应用程序构建到 .Jar 文件中时，会发生以下错误:java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors。

这是重构目录、模块、根项目和/或组名称时出现的问题。

重现错误

我已将项目移动到新的目录路径，一切都按预期运行。但是，在我尝试修改目录和/或模块名称并重构settings.gradle中的rootProject.name和settings.gradle中的group之后build.gradle 是在运行新的 .jar 构建时出现上述错误的情况。

完整错误消息

Exception in thread "Timer-0" java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
at io.grpc.internal.ClientCallImpl.<init>(ClientCallImpl.java:96)
at io.grpc.internal.ManagedChannelImpl$RealChannel.newCall(ManagedChannelImpl.java:662)
at io.grpc.internal.CensusTracingModule$TracingClientInterceptor.interceptCall(CensusTracingModule.java:382)
at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:104)
at io.grpc.internal.CensusStatsModule$StatsClientInterceptor.interceptCall(CensusStatsModule.java:675)
at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:104)
at com.google.api.gax.grpc.GrpcHeaderInterceptor.interceptCall(GrpcHeaderInterceptor.java:81)
at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:104)
at com.google.api.gax.grpc.GrpcMetadataHandlerInterceptor.interceptCall(GrpcMetadataHandlerInterceptor.java:55)
at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:104)
at io.grpc.internal.ManagedChannelImpl.newCall(ManagedChannelImpl.java:636)
at com.google.api.gax.grpc.GrpcClientCalls.newCall(GrpcClientCalls.java:66)
at com.google.api.gax.grpc.GrpcDirectCallable.futureCall(GrpcDirectCallable.java:58)
at com.google.api.gax.grpc.GrpcExceptionCallable.futureCall(GrpcExceptionCallable.java:62)
at com.google.api.gax.rpc.UnaryCallable$1.futureCall(UnaryCallable.java:126)
at com.google.api.gax.rpc.UnaryCallable.futureCall(UnaryCallable.java:87)
at com.google.cloud.firestore.FirestoreImpl.sendRequest(FirestoreImpl.java:330)
at com.google.cloud.firestore.UpdateBuilder.commit(UpdateBuilder.java:608)
at com.google.cloud.firestore.WriteBatch.commit(WriteBatch.java:41)
at com.google.cloud.firestore.DocumentReference.create(DocumentReference.java:141)
at com.google.cloud.firestore.CollectionReference.add(CollectionReference.java:115)
at com.google.cloud.firestore.CollectionReference.add(CollectionReference.java:141)
at PriceDifferenceTask.findMaxProfitAndPercentPriceDifference(PriceDifferenceTask.kt:167)
at PriceDifferenceTask.access$findMaxProfitAndPercentPriceDifference(PriceDifferenceTask.kt:15)
at PriceDifferenceTask$run$1.call(PriceDifferenceTask.kt:64)
at PriceDifferenceTask$run$1.call(PriceDifferenceTask.kt:15)
at rx.functions.Functions$6.call(Functions.java:169)
at rx.internal.operators.OperatorZip$Zip.tick(OperatorZip.java:252)
at rx.internal.operators.OperatorZip$Zip$InnerSubscriber.onNext(OperatorZip.java:323)
at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
at rx.Subscriber.setProducer(Subscriber.java:211)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorZip$Zip.start(OperatorZip.java:202)
at rx.internal.operators.OperatorZip$ZipSubscriber.onNext(OperatorZip.java:143)
at rx.internal.operators.OperatorZip$ZipSubscriber.onNext(OperatorZip.java:109)
at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
at rx.Subscriber.setProducer(Subscriber.java:209)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.subscribe(Observable.java:10352)
at rx.Observable.subscribe(Observable.java:10319)
at rx.Observable.subscribe(Observable.java:10159)
at PriceDifferenceTask.run(PriceDifferenceTask.kt:66)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)

实现

构建.gradle

group 'coinverse'
version '1.0-SNAPSHOT'

buildscript {
    ext.kotlin_version = '1.2.71'
    ext.junitJupiterVersion  = '5.0.3'

    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'org.junit.platform:junit-platform-gradle-plugin:1.0.3'
    }
}

apply plugin: 'java'
apply plugin: 'kotlin'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
    testImplementation group: 'junit', name: 'junit', version: '4.12'
    // JUnit Jupiter API and TestEngine implementation
    testCompile("org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}")
    testCompile("org.assertj:assertj-core:3.10.0")
    // To avoid compiler warnings about @API annotations in JUnit code
    testCompileOnly('org.apiguardian:apiguardian-api:1.0.0')
    implementation 'com.squareup.retrofit2:retrofit:2.4.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
    implementation 'com.squareup.retrofit2:adapter-rxjava:2.4.0'
    implementation 'io.reactivex.rxjava2:rxjava:2.2.2'
    implementation 'com.google.firebase:firebase-admin:6.5.0'
}

compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

Gradle Dependency Tree

尝试的解决方案

1. 在 StackOverflow 上检查类似问题后，这似乎与 Google 的 Guava 库的冲突有关。从上面的 Gradle 依赖项中，一些库正在调用旧版本的 Guava。 build.gradle 中的所有库均已更新至最新版本。
2. 重建项目。
3. IntelliJ 使缓存无效并重新启动
4. 在 build.gradle 中实现当前版本的 Guava:api "com.google.guava:guava:27.0-jre"
5. 在依赖树中找到的 build.gradle 中实现最低版本的 Guava:implementation 'com.google.guava:guava:19.0'
6. 在依赖树中找到的 build.gradle 中实现最高版本的 Guava:implementation 'com.google.guava:guava:20.0'
7. 尝试排除依赖树中的 build.gradle 中的 Guava 最低版本:configurations {all*.exclude 'com.google.guava:guava:19.0'}

Answer 1

添加当前版本27.0:

dependencies {
    api "com.google.guava:guava:27.0-jre"
}

并排除其他版本19.0和20.0，无论它们在何处被引用。

./gradlew app:dependencies > dependencies.txt

或检查:

./gradlew app:dependencies | grep guava

例如(firebase-admin 肯定是一个候选者):

// https://mvnrepository.com/artifact/com.google.firebase/firebase-admin
implementation ("com.google.firebase:firebase-admin:6.5.0") {
    exclude group: "com.google.guava", module: "guava"
}

可能还有更多引用资料。