Additional Upgrade Procedures and Information

JSP

Due to a change in the JSP specification, null request attributes now return the string “null” instead of an empty string. WebLogic Server versions since 6.1 contain a new flag in weblogic.xml called printNulls which is true by default, meaning that "null" will be the default. Setting this to false ensures that expressions with "null" results are printed as an empty string, not the string “null.”

An example of configuring the printNulls element in weblogic.xml :

<weblogic-web-app>

<jsp-param>

<param-name>printNulls</param-name>

<param-value>false</param-value>

</jsp-param>

</weblogic-web-app>

Load Order for Startup Classes

The behavior of LoadBeforeAppDeployments in StartupClassMbean has changed between versions 6.x and 7.0 Service Pack 2.

LoadBeforeAppDeployments still exists in version 7.0 Service Pack 2, but its behavior has changed. In 6.x, setting LoadBeforeAppDeployments to true caused startup classes to be invoked after the datasources were created and before the applications were activated. In 7.0 Service Pack 2, it determines whether a startup class is loaded and run before the server activates JMS and JDBC services or deploys applications and EJBs.

Managed Servers

A Managed Server running WebLogic Server 6.x cannot obtain its configuration and boot using an Administration Server running WebLogic Server 7.0. Make sure that you do not copy the running-managed-servers.xmlfile from your WebLogic Server 6.x installation directory to your WebLogic Server 7.0 installation directory.

BEA WebLogic Server 7.0 Upgrade Guide

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BEA 7 manual Load Order for Startup Classes, Managed Servers

7 specifications

BEA 7, a significant product from BEA Systems, represents a cornerstone in enterprise application integration and service-oriented architecture. As a comprehensive solution for developing, deploying, and maintaining enterprise-level applications, it brings a host of features that cater to the needs of businesses seeking agility and reliability in their IT infrastructure.

One of the standout characteristics of BEA 7 is its robust support for service-oriented architecture (SOA). This enables businesses to create applications as loosely coupled services, facilitating easier integration and scalability. The platform's emphasis on middleware technologies allows organizations to streamline their IT operations, enhance interoperability, and reduce time to market for new applications.

BEA 7 includes a powerful application server that provides a reliable runtime environment for managing applications. Offering high availability and scalability, it can successfully handle the demands of high-volume transactions while ensuring optimal performance. The built-in clustering capability ensures that applications can remain operational even in the event of server failures, which is critical for mission-critical applications.

Another notable feature of BEA 7 is its capabilities for web services. With support for industry standards such as XML, SOAP, and WSDL, users can easily expose and consume services across diverse platforms. This allows businesses to take full advantage of an interconnected ecosystem and simplifies the process of integrating various applications and data sources.

Security is a paramount consideration in BEA 7, which includes strong authentication, authorization, and encryption mechanisms to protect sensitive data. The platform's comprehensive security features ensure compliance with regulatory requirements and protect against potential threats, which is particularly important for sectors handling sensitive information, such as finance and healthcare.

BEA 7 also embraces innovative technologies such as the Java EE platform, facilitating the development of cross-platform applications. The integrated development environment (IDE) offers numerous tools for developers, making it easier to design, debug, and deploy applications. Developers benefit from built-in support for commonly used frameworks and libraries, improving productivity and enabling rapid application development.

In summary, BEA 7 stands out as a powerful enterprise solution, distinguished by its support for SOA, robust application server capabilities, web services integration, strong security features, and a developer-friendly environment. These attributes make BEA 7 an essential tool for organizations aiming to enhance their operational efficiency and adapt to the increasingly dynamic business landscape.