You, therefore, need to make sure that the manifest of the client application JAR file has a main class: entry.

因此，需要确保客户机应用程序JAR文件的清单具有一个主类，即项。

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Similarly, the order.jar bundle Manifest has the entry Export-Package: order.

类似地，order.jar 包清单包含条目 Export-Package: order。

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Remember, every time new files are added to the project, an entry for each of them must also be added to the MANIFEST file.

请记住，每次向项目添加新文件时，必须向MANIFEST文件中为每个文件添加一项。

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