Finding the appropriate configuration parameters for your JSF application can be difficult: Some params are defined in the JSF specification (those start with ‘javax.faces‘) and thus are available in both implementations. Others are implementation specific and are exclusively available for Mojarra or MyFaces. Implementation specific params for Mojarra start with ‘com.sun.faces‘, and with ‘org.apache.myfaces‘ for Apache MyFaces.

Some issues are targeted by similar params in both implementations, e.g. ‘org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION‘ and ‘com.sun.faces.numberOfViewsInSession‘. Though the parameter names indicate similar behavior, they default to different values: org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION defaults to 20 while com.sun.faces.numberOfViewsInSession defaults to 15. This is an obstacle when moving from one implementation to another but also for those working with different implementations in different projects.

Ok, so all we need to be able to configure our JSF applications properly is to look up the context params defined by the JSF specification and those additionally provided by the implemenation of our choice, right? Well, this is true for MyFaces, since all configuration params are nicely summed up and described in the documentation.

Unfortunately, there is no comprehensive list of context-params for Mojarra, so it is required to consult various sources. Developers interested in Mojarra’s context paramters can find some (but not all) in the official Glassfish wiki, others in an outdated JBoss AS 6 documentation, in IBM’s knowledgebase or scattered in release notes.

Due to the lack of official documentation, I compiled a list of Mojarra spcefic context-params available at least for version 2.1.6. I was not able to find documentation for all params so feel free to add additional links in the comments.

Sources for Mojarra context-params:

https://wikis.oracle.com/display/GlassFish/JavaServerFacesRI#JavaServerFacesRI-Whatcontextparametersareavailableandwhatdotheydo%3F http://docs.jboss.org/jbossas/6/JSF_Guide/en-US/html/jsf.reference.html http://pic.dhe.ibm.com/infocenter/wasinfo/v8r0/index.jsp?topic=%2Fcom.ibm.websphere.nd.doc%2Finfo%2Fae%2Fae%2Frweb_jsfengine.html

Resource Handling

com.sun.faces.enableMissingResourceLibraryDetection

com.sun.faces.enableThreading http://javaserverfaces.java.net/nonav/rlnotes/2.0.0/whatsnew.html http://java.net/jira/browse/JAVASERVERFACES-2385 Relevant when deploying to GAE

com.sun.faces.resourceUpdateCheckPeriod http://javaserverfaces.java.net/nonav/rlnotes/2.0.4/whatsnew.html

com.sun.faces.resourceBufferSize

State Saving

com.sun.faces.numberOfViewsInSession

com.sun.faces.numberOfLogicalViews

com.sun.faces.compressViewState

com.sun.faces.serializeServerState

com.sun.faces.enableViewStateIdRendering

com.sun.faces.autoCompleteOffOnViewState

com.sun.faces.generateUniqueServerStateIds

JSF 1.x Legacy

com.sun.faces.disableVersionTracking

com.sun.faces.enabledLoadBundle11Compatibility

com.sun.faces.enableRestoreView11Compatibility

Conversation/Validation

com.sun.faces.writeStateAtFormEnd

com.sun.faces.enableLazyBeanValidation

com.sun.faces.registerConverterPropertyEditors

Misc

com.sun.faces.preferXHTML

com.sun.faces.sendPoweredByHeader

com.sun.faces.verifyObjects

com.sun.faces.validateXml

com.sun.faces.displayConfiguration

com.sun.faces.injectionProvider

com.sun.faces.serializationProvider

com.sun.faces.responseBufferSize

com.sun.faces.clientStateWriteBufferSize

com.sun.faces.forceLoadConfiguration

com.sun.faces.enableHtmlTagLibValidator

com.sun.faces.enableCoreTagLibValidator

com.sun.faces.compressJavaScript

com.sun.faces.defaultResourceMaxAge

com.sun.faces.enableJSStyleHiding

com.sun.faces.enableScriptsInAttributeValues

com.sun.faces.enableGroovyScripting

com.sun.faces.expressionFactory

com.sun.faces.disableUnicodeEscaping

com.sun.faces.allowTextChildren http://javaserverfaces.java.net/nonav/rlnotes/2.0.0/whatsnew.html http://java.net/jira/browse/JAVASERVERFACES-1154

com.sun.faces.enableAgressiveSessionDirtying http://javaserverfaces.java.net/nonav/rlnotes/2.0.4/whatsnew.html



No documentation found

com.sun.faces.cacheResourceModificationTimestamp

com.sun.faces.ENABLE_HTTP_METHOD_RESTRICTION_PHASE_LISTENER

com.sun.faces.numberOfConcerrentFlashUsers mind the typo ;-)

com.sun.faces.numberOfFlashesBetweenFlashReapings

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