WFLY-18708 Disable counter-productive "distributable" behavior in Moj…

…arra
rhusar · Nov 2, 2023 · 68a24e1 · 68a24e1
1 parent 2d7cc1b
commit 68a24e1
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Showing 3 changed files with 63 additions and 9 deletions.
diff --git a/jsf/subsystem/pom.xml b/jsf/subsystem/pom.xml
@@ -67,6 +67,11 @@
             <artifactId>jakarta.enterprise.cdi-api</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>jakarta.servlet</groupId>
+            <artifactId>jakarta.servlet-api</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>jakarta.validation</groupId>
             <artifactId>jakarta.validation-api</artifactId>

diff --git a/jsf/subsystem/src/main/java/org/jboss/as/jsf/deployment/JSFMetadataProcessor.java b/jsf/subsystem/src/main/java/org/jboss/as/jsf/deployment/JSFMetadataProcessor.java
@@ -10,6 +10,7 @@
 
 import jakarta.faces.application.ViewHandler;
 import org.jboss.as.jsf.logging.JSFLogger;
+import org.jboss.as.jsf.subsystem.JSFResourceDefinition;
 import org.jboss.as.server.deployment.DeploymentPhaseContext;
 import org.jboss.as.server.deployment.DeploymentUnit;
 import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
@@ -18,8 +19,11 @@
 import org.jboss.metadata.javaee.spec.ParamValueMetaData;
 import org.jboss.metadata.web.jboss.JBossServletMetaData;
 import org.jboss.metadata.web.jboss.JBossWebMetaData;
+import org.jboss.metadata.web.spec.ListenerMetaData;
 import org.jboss.metadata.web.spec.MultipartConfigMetaData;
 
+import com.sun.faces.config.ConfigureListener;
+
 /**
  * @author Stuart Douglas
  */
@@ -66,11 +70,12 @@ public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitPro
         if(JsfVersionMarker.isJsfDisabled(deploymentUnit)) {
             return;
         }
-        if(metaData == null || metaData.getMergedJBossWebMetaData() == null || metaData.getMergedJBossWebMetaData().getServlets() == null) {
+        JBossWebMetaData webMetaData = (metaData != null) ? metaData.getMergedJBossWebMetaData() : null;
+        if (webMetaData == null || webMetaData.getServlets() == null) {
             return;
         }
         JBossServletMetaData jsf = null;
-        for(JBossServletMetaData servlet : metaData.getMergedJBossWebMetaData().getServlets()) {
+        for(JBossServletMetaData servlet : webMetaData.getServlets()) {
             if(JAVAX_FACES_WEBAPP_FACES_SERVLET.equals(servlet.getServletClass())) {
                 jsf = servlet;
             }
@@ -81,22 +86,34 @@ public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitPro
         }
         if (disallowDoctypeDecl != null) {
             // Add the disallowDoctypeDecl context param if it's not already present
-            setContextParameterIfAbsent(metaData.getMergedJBossWebMetaData(), DISALLOW_DOCTYPE_DECL, disallowDoctypeDecl.toString());
+            setContextParameterIfAbsent(webMetaData, DISALLOW_DOCTYPE_DECL, disallowDoctypeDecl.toString());
         }
-        // Auto-disable lazy bean validation for distributable web application.
-        // This can otherwise cause missing @PreDestroy events.
-        if (metaData.getMergedJBossWebMetaData().getDistributable() != null) {
+        if (webMetaData.getDistributable() != null) {
+            // Auto-disable lazy bean validation for distributable web application.
+            // This can otherwise cause missing @PreDestroy events.
             String disabled = Boolean.toString(false);
-            if (!setContextParameterIfAbsent(metaData.getMergedJBossWebMetaData(), LAZY_BEAN_VALIDATION_PARAM, disabled).equals(disabled)) {
+            if (!setContextParameterIfAbsent(webMetaData, LAZY_BEAN_VALIDATION_PARAM, disabled).equals(disabled)) {
                 JSFLogger.ROOT_LOGGER.lazyBeanValidationEnabled();
             }
+
+            String version = JsfVersionMarker.getVersion(deploymentUnit);
+            // Disable counter-productive "distributable" logic in Mojarra implementation
+            if (version.equals(JsfVersionMarker.JSF_4_0) && JSFModuleIdFactory.getInstance().getImplModId(version).getSlot().equals(JSFResourceDefinition.DEFAULT_SLOT)) {
+                ListenerMetaData mojarraListenerMetaData = new ListenerMetaData();
+                mojarraListenerMetaData.setListenerClass(ConfigureListener.class.getName());
+                ListenerMetaData workaroundListenerMetaData = new ListenerMetaData();
+                workaroundListenerMetaData.setListenerClass(NonDistributableServletContextListener.class.getName());
+
+                webMetaData.getListeners().add(mojarraListenerMetaData);
+                // Ensure workaround listener runs after Mojarra's bootstrap listener
+                webMetaData.getListeners().add(workaroundListenerMetaData);
+            }
         }
         // Set a default buffer size as 1024 is too small
-        final JBossWebMetaData webMetaData = metaData.getMergedJBossWebMetaData();
         // First check the legacy facelets.BUFFER_SIZE property which is required for backwards compatibility
         if (!hasContextParam(webMetaData, "facelets.BUFFER_SIZE")) {
             // The legacy parameter has not been set, set a default buffer if the current parameter name has not been set.
-            setContextParameterIfAbsent(metaData.getMergedJBossWebMetaData(), ViewHandler.FACELETS_BUFFER_SIZE_PARAM_NAME, Integer.toString(defaultBufferSize));
+            setContextParameterIfAbsent(webMetaData, ViewHandler.FACELETS_BUFFER_SIZE_PARAM_NAME, Integer.toString(defaultBufferSize));
         }
     }
 

diff --git a/...tem/src/main/java/org/jboss/as/jsf/deployment/NonDistributableServletContextListener.java b/...tem/src/main/java/org/jboss/as/jsf/deployment/NonDistributableServletContextListener.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright The WildFly Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+package org.jboss.as.jsf.deployment;
+
+import jakarta.faces.context.FacesContext;
+import jakarta.servlet.ServletContext;
+import jakarta.servlet.ServletContextEvent;
+import jakarta.servlet.ServletContextListener;
+
+import com.sun.faces.config.InitFacesContext;
+import com.sun.faces.config.WebConfiguration;
+
+/**
+ * Workaround for counter-productive "distributable" logic in Mojarra.
+ * This setting is used to trigger redundant calls to HttpSession.setAttribute(...) for mutated attributes.
+ */
+public class NonDistributableServletContextListener implements ServletContextListener {
+
+    @Override
+    public void contextInitialized(ServletContextEvent event) {
+        ServletContext context = event.getServletContext();
+        FacesContext facesContext = new InitFacesContext(context);
+        try {
+            WebConfiguration.getInstance(context).setOptionEnabled(WebConfiguration.BooleanWebContextInitParameter.EnableDistributable, false);
+            context.setAttribute(WebConfiguration.BooleanWebContextInitParameter.EnableDistributable.getQualifiedName(), Boolean.FALSE);
+        } finally {
+            facesContext.release();
+        }
+    }
+}