Preface

This Sun Java System Application Server Enterprise Edition 8.2 Upgrade and Migration Guide describes how Java^TM 2 Platform, Enterprise Edition (J2EE™ platform) applications from the Sun ONE Application Server 6.x (also known as iPlanet Application Server), J2EE Reference Implementation (RI) 1.3/1.4 Application Server, Sun Java System Application Server 7, WebLogic Server 5.1/6.0/6.1/8.1, WebSphere Application Server 4/5.1, JBoss 3.0, or Apache Tomcat 4.1 to the Sun Java SystemApplication Server8.2.

This guide describes differences between adjacent product releases and configuration options that can result in incompatibility with the product specifications. Specifically, this Sun Java System Application Server Enterprise Edition 8.2 Upgrade and Migration Guide details Sun Java System Application Server 8.2 incompatibility with Sun Java System Application Server 8 2004Q2, Sun Java System Application Server 7 2004Q2, and the Java^TM 2 Platform, Enterprise Edition (J2EE^TM platform), version 1.4 specification.

This preface contains information about the following topics:

• Who Should Use This Book

• How This Book Is Organized

• Application Server Documentation Set

• Related Books

• Typographic Conventions

• Symbol Conventions

• Accessing Sun Resources Online

• Third-Party Web Site References

• Sun Welcomes Your Comments

Who Should Use This Book

The intended audience for this guide is the system administrator, network administrator, application server administrator, and web developer who has an interest in migration issues.

This guide assumes you are familiar with the following topics:

• HTML

• Application Servers

• Client/Server programming model

• Internet and World Wide Web

• Windows 2000 and/or Solaris^TM operating systems

• Java programming

• Java APIs as defined in specifications for Enterprise Java Beans (EJB)s, Java Server Pages (JSP)

• Java Database Connectivity (JDBC)

• Structured database query languages such as SQL

• Relational database concepts

• Software development processes, including debugging and source code control

How This Book Is Organized

This guide is organized as follows:

Chapter Chapter 1, Application Server Compatibility Issues , discusses the incompatibilities between Application Server 8.2 and Application Server 7/8.

Chapter Chapter 2, J2EE 1.4 Compatibility Issues, discusses the J2EE incompatibilities between Application Server 8.2 and Application Server 7/8.

Chapter Chapter 3, Upgrading an Application Server Installation, describes the process to upgrade an earlier installation of Application Server to Application Server 8.2.

Chapter Chapter 4, Understanding Migration, discusses the need to migrate applications.

Chapter Chapter 5, Migrating from EJB 1.1 to EJB 2.0, describes the process to migrate EJB 1.1 to EJB 2.0 specification.

Chapter Chapter 6, Migrating from Application Server 6.x/7.x to Application Server 8.2, describes the considerations and strategies to migrate applications from earlier releases of Sun’s application servers to Sun Java System Application Server 8.2 .

Chapter Chapter 7, Migrating a Sample Application, describes the process for migrating the main components of a typical J2EE application from Sun ONE Application Server 6.x to Sun Java System Application Server 8.2.

Chapter Chapter 8, Migration Tools and Resources, lists the tools and resources that aid in automatic migration of applications.

Application Server Documentation Set

The Application Server documentation set describes deployment planning and system installation. The URL for standaloneApplication Server documentation is http://docs.sun.com/app/docs/coll/1343.1. For an introduction to Application Server, refer to the books in the order in which they are listed in the following table.

Table P–1 Books in the Application Server Documentation Set

Book Title	Description
Release Notes	Late-breaking information about the software and the documentation. Includes a comprehensive, table-based summary of the supported hardware, operating system, JDK, and JDBC/RDBMS.
Quick Start Guide	How to get started with the Application Server product.
Installation Guide	Installing the software and its components.
Developer’s Guide	Creating and implementing JavaTM 2 Platform, Enterprise Edition (J2EETM platform) applications intended to run on the Application Server that follow the open Java standards model for J2EE components and APIs. Includes information about developer tools, security, debugging, deployment, and creating lifecycle modules.
J2EE 1.4 Tutorial	Using J2EE 1.4 platform technologies and APIs to develop J2EE applications.
Administration Guide	Configuring, managing, and deploying Application Server subsystems and components from the Administration Console.
Administration Reference	Editing the Application Server configuration file, domain.xml.
Upgrade and Migration Guide	Migrating your applications to the new Application Server programming model, specifically from Application Server 6.x and 7. This guide also describes differences between adjacent product releases and configuration options that can result in incompatibility with the product specifications.
Troubleshooting Guide	Solving Application Server problems.
Error Message Reference	Solving Application Server error messages.
Reference Manual	Utility commands available with the Application Server; written in man page style. Includes the asadmin command line interface.

Related Books

The http://docs.sun.com^SM web site enables you to access Sun technical documentation online. You can browse the archive or search for a specific book title or subject.

For other Sun Java System server documentation, go to the following:

• Message Queue documentation

• Directory Server documentation

• Web Server documentation

The URL for all documentation about Java ES and its components is http://docs.sun.com/prod/entsys.05q4.

Default Paths and File Names

The following table describes the default paths and file names that are used in this book.

Table P–2 Default Paths and File Names

Placeholder	Description	Default Value
install-dir	Represents the base installation directory for Application Server.	Sun Java Enterprise System (Java ES) installations on the SolarisTM platform: /opt/SUNWappserver/appserver Java ES installations on the Linux platform:  /opt/sun/appserver/ Other Solaris and Linux installations, non-root user:  user’s home directory/SUNWappserver Other Solaris and Linux installations, root user:  /opt/SUNWappserver Windows, all installations:  SystemDrive:\Sun\AppServer
domain-root-dir	Represents the directory containing all domains.	Java ES installations on the Solaris platform:  /var/opt/SUNWappserver/domains/ Java ES installations on the Linux platform:  /var/opt/sun/appserver/domains/ All other installations:  install-dir/domains/
domain-dir	Represents the directory for a domain.  In configuration files, you might see domain-dir represented as follows: ${com.sun.aas.instanceRoot}	domain-root-dir/domain-dir

Typographic Conventions

The following table describes the typographic changes that are used in this book.

Table P–3 Typographic Conventions

Typeface	Meaning	Example
AaBbCc123	The names of commands, files, and directories, and onscreen computer output	Edit your .login file. Use ls -a to list all files. machine_name% you have mail.
AaBbCc123	What you type, contrasted with onscreen computer output	machine_name% su Password:
AaBbCc123	A placeholder to be replaced with a real name or value	The command to remove a file is rm filename.
AaBbCc123	Book titles, new terms, and terms to be emphasized (note that some emphasized items appear bold online)	Read Chapter 6 in the User's Guide. A cache is a copy that is stored locally. Do not save the file.

Symbol Conventions

The following table explains symbols that might be used in this book.

Table P–4 Symbol Conventions

Symbol	Description	Example	Meaning
[ ]	Contains optional arguments and command options.	ls [-l]	The -l option is not required.
{ | }	Contains a set of choices for a required command option.	-d {y|n}	The -d option requires that you use either the y argument or the n argument.
${ }	Indicates a variable reference.	${com.sun.javaRoot}	References the value of the com.sun.javaRoot variable.
-	Joins simultaneous multiple keystrokes.	Control-A	Press the Control key while you press the A key.
+	Joins consecutive multiple keystrokes.	Ctrl+A+N	Press the Control key, release it, and then press the subsequent keys.
->	Indicates menu item selection in a graphical user interface.	File -> New -> Templates	From the File menu, choose New. From the New submenu, choose Templates.

Accessing Sun Resources Online

The docs.sun.com^SM web site enables you to access Sun technical documentation online. You can browse the docs.sun.com archive or search for a specific book title or subject. Books are available as online files in PDF and HTML formats. Both formats are readable by assistive technologies for users with disabilities.

To access the following Sun resources, go to http://www.sun.com:

• Downloads of Sun products

• Services and solutions

• Support (including patches and updates)

• Training

• Research

• Communities (for example, Sun Developer Network)

Third-Party Web Site References

Third-party URLs are referenced in this document and provide additional, related information.

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Note –

Sun is not responsible for the availability of third-party web sites mentioned in this document. Sun does not endorse and is not responsible or liable for any content, advertising, products, or other materials that are available on or through such sites or resources. Sun will not be responsible or liable for any actual or alleged damage or loss caused or alleged to be caused by or in connection with use of or reliance on any such content, goods, or services that are available on or through such sites or resources.

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Sun Welcomes Your Comments

Sun is interested in improving its documentation and welcomes your comments and suggestions. To share your comments, go to http://docs.sun.com and click Send Comments. In the online form, provide the full document title and part number. The part number is a 7-digit or 9-digit number that can be found on the book's title page or in the document's URL. For example, the part number of this book is 819-4737.