This documentation is for WSO2 Application Server 5.2.0. View documentation for the latest release.
Page Comparison - Java EE Support (v.13 vs v.14) - Application Server 5.2.0 - WSO2 Documentation

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Application Server provides support for three Java EE web profile based specifications, which are namely Java Server Faces (JSF), Java Persistence API (JPA) and Java Transaction API (JTA).

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If this feature is not bundled with the WSO2 product by default, you can install it using the instructions provided in the Feature Management section. 

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Java EE

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class loading environments

Installation of the J2EE ( Java EE ) feature will create a directory named j2ee containing the required libraries for JSF and JPA  at the <PRODUCT_HOME>/lib/runtimes/library and update the <PRODUCT_HOME>/repository/conf/tomcat/webapp-classloading-environments.xml file by adding the new J2EE classloading environment.

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As mentioned earlier, JTA support for web applications is inherited from the Carbon platform; therefore, there is no need of installing the J2EE feature Java EE feature in this case.

Web applications that run on the Carbon class loading environment can have JTA facilities provided by the Carbon platform.

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