Shelley Baker [http://community.jboss.org/people/shelleyb] created the discussion "Failure to Instantiate DnsContextFactory" To view the discussion, visit: http://community.jboss.org/message/619522#619522 -------------------------------------------------------------- When attempting to create a new InitialDirContext using the com.sun.jndi.dns.DnsContextFactory, the following exception occurs: Caused by: javax.naming.NamingException: Failed instantiate InitialContextFactory com.sun.jndi.dns.DnsContextFactory from classloader ModuleClassLoader for Module "deployment.test-case.ear.test-web.war:main" from Service Module Loader         at org.jboss.as.naming.InitialContextFactoryBuilder.createInitialContextFactory(InitialContextFactoryBuilder.java:58)         at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:664) [:1.6.0_26]         at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288) [:1.6.0_26]         at javax.naming.InitialContext.init(InitialContext.java:223) [:1.6.0_26]         at javax.naming.InitialContext.(InitialContext.java:197) [:1.6.0_26]         at javax.naming.directory.InitialDirContext.(InitialDirContext.java:82) [:1.6.0_26]         at com.test.messaging.internal.resource.dns.DnsClientImpl.querySrv(DnsClientImpl.java:328) [dns-lookup-jar.jar:]         ... 16:36:36,000 ERROR [org.apache.catalina.core.StandardContext] (MSC service thread 1-5) Error listenerStart 16:36:36,013 ERROR [org.apache.catalina.core.StandardContext] (MSC service thread 1-5) Context [/test] startup failed due to previous errors 16:36:36,023 INFO  [org.jboss.web] (MSC service thread 1-5) registering web context: /test Here is my relevant code snippet: Hashtable env = new Hashtable(); env.put("java.naming.factory.initial", "com.sun.jndi.dns.DnsContextFactory"); env.put("java.naming.authoritative", "false"); env.put("com.sun.jndi.dns.recursion", "true"); env.put("com.sun.jndi.dns.timeout.initial", timeoutProp); env.put("com.sun.jndi.dns.timeout.retries", "1"); env.put("java.naming.provider.url", providerProp); DirContext ctx = new InitialDirContext(env); I found http://community.jboss.org/message/608523#608523 this thread which seemed very similar to the problem that I am running into, but setting the "jboss.modules.system.pkgs" property to "com.sun.jndi.dns" had no effect. I'm running JBoss AS 7.0.0.Final, using the 1.6.0_26 JRE. Any suggestions on how to resolve this problem would be greatly appreciated. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/619522#619522] Start a new discussion in JBoss AS7 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]