8.1 Importing the J2EE applications
You can import J2EE applications containing DDs or J2EE applications with annotations. Import J2EE applications containing DDs after ensuring that the DDs of EAR, EJB-JAR, WAR, and RAR comply with the DTD.
J2EE applications to be imported are in the following formats:
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J2EE applications that are in archive format
The J2EE applications in the archive format are the J2EE applications containing the components of EJB-JAR, WAR, and RAR files in the working directory of the J2EE server.
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J2EE applications that are in exploded archive format
The J2EE applications in the exploded archive format are the J2EE applications that use the configuration files external to the J2EE server as logical J2EE applications. When switching the J2EE applications by reloading, you need to import the J2EE applications in this format. For switching the J2EE applications, see 10.5 Switching between J2EE applications.