gradle - 将 Gradle 5.3.1 升级到 6.5。旧版本下载依赖项正常，但在 6.5 上失败

Question

我已经将我的问题简化为一个非常简单的项目，该项目声明了一个模块依赖于从我的客户的工件实例提供的模块工件。
这适用于 5.3.1。从下面的日志中可以看出，有一行表明 DefaultExternalResourceArtifactResolver 正在加载关联的
来自我的 maven2 存储库的此依赖项的 .jar(请参阅:{{{ A }}})
但是，当我尝试升级到 Gradle 6.5 时，我收到了消息

org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven2'

(见 {{{ B }}})。
我太轻量级了，无法开始深入研究源代码。我希望有人能给我一个提示，说明这个问题可能是什么原因。
以下是构建文件(为客户匿名而编辑):
根项目 build.gradle

plugins {
  id 'java'
}


subprojects {
  apply plugin: 'java'

  repositories {
    ['animals'].each { repo ->
      maven {
        name repo
        url "${urlDefinedInGradleProperties}/${repo}"
        credentials {
          username = 'mouse'
          password = 'mouse.mouse'
        }
      }
    }
  }
}

子项目 build.gradle

dependencies {
  testCompile group: 'com.mouse.ap.data.qe', name: 'lib-reptile-generator', version: '0.1-806-SNAPSHOT'
}

日志如下所示。
提前致谢 !
/克里斯

Gradle 5.3.1 selected log statements:   No issue downloaded dependency with older version.

22:48:01.145 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver] Attempting to resolve component for com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT using repositories [maven, maven2, MavenLocal, maven3, iad-lib, toro-ext, iad-lib-ext, gradle-plugins]
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven'
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Found cached version of changing module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in 'maven2'
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Using cached module metadata for module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in 'maven2'
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver] Loading file:/Users/christopher.bedford/.m2/repository/com/mouse/ap/data/qe/lib-reptile-generator/0.1-806-SNAPSHOT/lib-reptile-generator-0.1-806-SNAPSHOT.pom    {{{ A }}}
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver] Loading file:/Users/christopher.bedford/.m2/repository/com/mouse/ap/data/qe/lib-reptile-generator/0.1-806-SNAPSHOT/lib-reptile-generator-0.1-806-SNAPSHOT.jar
        ...
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver] No meta-data file or artifact found for module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in repository 'MavenLocal'.
22:48:01.146 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.modulecache.PersistentModuleMetadataCache] Recording absence of module descriptor in cache: com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT [changing = false]
22:48:01.147 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven3'
22:48:01.147 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'foo-repo-lib'
22:48:01.148 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Found cached version of changing module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in 'bar-repo-ext'
22:48:01.148 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Using cached module metadata for module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in 'bar-repo-ext'
22:48:01.148 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'foo-rep-lib-ext'
22:48:01.148 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'gradle-plugins'
        ...
22:48:01.148 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver] Using com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT from Maven repository 'maven2'
        ...
22:48:01.149 [DEBUG] [org.gradle.internal.component.model.ComponentAttributeMatcher] Selected matches [com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration compile] from candidates [com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration compile, com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration runtime, com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration platform-compile, com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration platform-runtime, com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration enforced-platform-compile, com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration enforced-platform-runtime] for {org.gradle.dependency.bundling=external, org.gradle.jvm.version=8, org.gradle.usage=java-api}
        ...
22:48:01.149 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder] Visiting configuration com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT(compile).
        ...
22:48:01.150 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Completing Build operation 'Resolve dependencies of :lib-aci-kafka:testCompileClasspath'
22:48:01.150 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Resolve dependencies of :lib-aci-kafka:testCompileClasspath' completed
        ...
22:48:01.150 [DEBUG] [org.gradle.internal.component.model.ComponentAttributeMatcher] Selected match com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration compile from candidates [com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT configuration compile] for {org.gradle.dependency.bundling=external, org.gradle.jvm.version=8, org.gradle.usage=java-api}
        ...
22:48:01.151 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Resolve lib-reptile-generator.jar (com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT)' started
22:48:01.151 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Found artifact 'lib-reptile-generator.jar (com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT)' in resolver cache: /Users/christopher.bedford/.gradle/caches/modules-2/files-2.1/com.mouse.ap.data.qe/lib-reptile-generator/0.1-806-SNAPSHOT/68ee2c19e31d164860a270837701cf49e6a76168/lib-reptile-generator-0.1-806-SNAPSHOT.jar
        ...
22:48:01.151 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Completing Build operation 'Resolve lib-reptile-generator.jar (com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT)'
22:48:01.151 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Resolve lib-reptile-generator.jar (com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT)' completed





Gradle 6.5 selected log statements:   Unable to download dependency with latest version.

2020-06-14T22:58:15.997-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.NodeState] dependency: com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT from-conf: testCompile to-conf: null is filtered.
    ...
2020-06-14T22:58:16.071-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver] Attempting to resolve component for com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT using repositories [maven, maven2, MavenLocal, maven3,  gradle-plugins]

2020-06-14T22:58:16.071-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven'
2020-06-14T22:58:16.071-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven2'  {{{ B }}}
2020-06-14T22:58:16.072-0700 [DEBUG] [org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver] Loading file:/Users/christopher.bedford/.m2/repository/com/mouse/ap/data/qe/lib-reptile-generator/0.1-806-SNAPSHOT/lib-reptile-generator-0.1-806-SNAPSHOT.pom
2020-06-14T22:58:16.073-0700 [DEBUG] [org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver] No meta-data file or artifact found for module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in repository 'MavenLocal'.
2020-06-14T22:58:16.073-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.modulecache.PersistentModuleMetadataCache] Recording absence of module descriptor in cache: com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT [changing = false]
2020-06-14T22:58:16.073-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'maven3'
2020-06-14T22:58:16.073-0700 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Detected non-existence of module 'com.mouse.ap.data.qe:lib-reptile-generator:0.1-806-SNAPSHOT' in resolver cache 'gradle-plugins'
2020-06-14T22:58:16.073-0700 [DEBUG] [org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor] Constructing external resource: https://artifacts.mouse.com/libs-release/com/mouse/ap/data/qe/lib-reptile-generator/0.1-806-SNAPSHOT/maven-metadata.xml
2020-06-14T22:58:16.074-0700 [DEBUG] [org.gradle.cache.internal.btree.BTreePersistentIndexedCache] Opening cache resource-at-url.bin (/Users/christopher.bedford/.gradle/caches/modules-2/metadata-2.96/resource-at-url.bin)
2020-06-14T22:58:16.076-0700 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Download https://artifacts.mouse.com/libs-release/com/mouse/ap/data/qe/lib-reptile-generator/0.1-806-SNAPSHOT/maven-metadata.xml' started

重要脚注:如果您遵循已接受答案中给出的好建议，请确保避免我的愚蠢错误:不要将推荐的 'metadataSources' block 放在 buildscript { repositories 这肯定不是您想要的!

Answer 1

根据你的评论

there is no metadata of any kind (no pom, etc), just the .jar

您的存储库包含 jar仅文件并丢失元数据 pom文件。在 6.0 之前，Gradle 尝试从 pom 派生元数据如果 pom失踪。 Gradle 6 改变了这一点。出于效率原因，默认元数据源为 gradleMetadata()和 mavenPom()只要。因此，如果两者都缺少，Gradle 似乎不会尝试下载 jar .

要恢复旧行为并能够解决依赖关系，请添加 artifact()到您的 Maven 存储库 metadataSources配置。

repositories {
    ['animals'].each { repo ->
        maven {
            name repo
            url "${urlDefinedInGradleProperties}/${repo}"
            credentials {
                username = 'mouse'
                password = 'mouse.mouse'
            }

            metadataSources {
                mavenPom()
                artifact()
            }
        }
    }
}

您可以在文档 Supported metadata sources 中了解更多相关信息。 .