Stan Silvert [http://community.jboss.org/people/stan.silvert%40jboss.com] created the discussion "Using a deployer to add jars to a webapp classpath." To view the discussion, visit: http://community.jboss.org/message/536136#536136 -------------------------------------------------------------- In AS5 this was fairly straightforward.  But in AS6 the same code doesn't work. I want to add the JSF impl jars on the fly using a JSFDeployer.  The reason is that I want to allow different JSF impls or no impl at all. I did the following: * Removed jsf-libs directory from the classpath in jbossweb.sar/META-INF/jboss-structure.xml * extend AbstractSimpleVFSRealDeployer<JBossWebMetaData> * In constructor, setStage(DeploymentStages.POST_PARSE) * In deploy(VFSDeploymentUnit unit, JBossWebMetaData metaData), do this: {code}private void addClasspath(VFSDeploymentUnit unit, URL url) throws MalformedURLException    {        // note: url points to the directory where the JSF impl jars live       try       {                           // add jar files if url is a directory          if (vFile.isDirectory())          {             for (VirtualFile jarFile : vFile.getChildrenRecursively(JAR_FILTER))             {                              unit.addClassPath(jarFile);                System.out.println("$2 Added " + jarFile + " to classpath for " + unit.getName());             }          }       }       catch (IOException e)       {          log.warn("Unable to add URL to classpath: " + url.toString());       }       catch (URISyntaxException e)       {          log.warn("Unable to add URL to classpath: " + url.toString());       }    }{code} The System.out shows me that the code found all the correct jars and called unit.AddClassPath(). {quote}14:13:35,261 INFO  [STDOUT] $2 Added "/C:/projects/astrunk/build/target/jboss-6.0.0-SNAPSHOT/server/default/deployers/jsf.deployer/Mojarra-2.0/jsf-api.jar" to classpath for vfs:///C:/projects/astrunk/build/target/jboss-6.0.0-SNAPSHOT/server/default/deploy/jboss-jsf-20test-jsfunit.war 14:13:35,267 INFO  [STDOUT] $2 Added "/C:/projects/astrunk/build/target/jboss-6.0.0-SNAPSHOT/server/default/deployers/jsf.deployer/Mojarra-2.0/jsf-impl.jar" to classpath for vfs:///C:/projects/astrunk/build/target/jboss-6.0.0-SNAPSHOT/server/default/deploy/jboss-jsf-20test-jsfunit.war{quote} But in AS6, Tomcat is no longer able to load the JSF impl classes.  The only reason it finds JBossJSFConfigureListener is because I unjarred the class and put it in the root of deployers/jsf.deployer: {quote}14:13:54,446 INFO  [TomcatDeployment] deploy, ctxPath=/jboss-jsf-20test-jsfunit 14:13:54,507 ERROR [[/jboss-jsf-20test-jsfunit]] Error configuring application listener of class org.jboss.jsf.integration.config.JBossJSFConfigureListener: java.lang.NoClassDefFoundError: com/sun/faces/config/ConfigureListener         at java.lang.ClassLoader.defineClass1(Native Method)         at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)         at java.lang.ClassLoader.defineClass(ClassLoader.java:616)         at org.jboss.classloader.spi.base.BaseClassLoader.access$200(BaseClassLo ader.java:70)         at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader. java:668)         at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader. java:627)         at java.security.AccessController.doPrivileged(Native Method)         at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseC lassLoader.java:626)         at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseC lassLoader.java:603){quote} -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536136#536136] Start a new discussion in JBoss Microcontainer at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]