重复类：javax.activation ... 使用 Gradle 构建项目时

Question

在我的 build.gradle 文件中添加以下实现后，通过 USB 在手机上运行项目时构建失败：

implementation 'com.fasterxml.jackson.core:jackson-core:2.10.1'
implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.10.1'

虽然没有在设备上运行，但构建成功。 以下是构建输出中的重复文件：

    Duplicate class javax.activation.ActivationDataFlavor found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.CommandInfo found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.CommandMap found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.CommandObject found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataContentHandler found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataContentHandlerFactory found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataHandler found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataHandler$1 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataHandlerDataSource found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataSource found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.DataSourceDataContentHandler found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.FileDataSource found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.FileTypeMap found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.MailcapCommandMap found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.MimeType found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.MimeTypeParameterList found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.MimeTypeParseException found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.MimetypesFileTypeMap found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.ObjectDataContentHandler found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport$1 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport$2 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport$3 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport$4 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.SecuritySupport$5 found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.URLDataSource found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)
Duplicate class javax.activation.UnsupportedDataTypeException found in modules jetified-activation (activation.jar) and jetified-jakarta.activation-api-1.2.1 (jakarta.activation:jakarta.activation-api:1.2.1)

Answer 1

可能发生这种情况是因为您使用了两个使用相同依赖项的库，请尝试将 transitive = true 添加到 Jackson，因为您似乎使用的是使用 javax.activation 的名为 jakarta 的库。

传递性是做什么的？检查这篇文章。

What does transitive = true in Gradle exactly do (w.r.t. crashlytics)?