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Asked: 2026-05-10T16:31:22+00:00

I’m trying to run the Tomcat with JBoss Embedded jpa booking example. I run

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I’m trying to run the Tomcat with JBoss Embedded jpa booking example. I run the build and deploy the war. I then get the following error:

 ERROR [catalina.core.ContainerBase.[Catalina].[localhost].[/jboss-seam-jpa]] Error configuring application listener of class com.sun.faces.config.ConfigureListener java.lang.NoClassDefFoundError: javax/el/CompositeELResolver         at java.lang.Class.getDeclaredConstructors0(Native Method)         at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)         at java.lang.Class.getConstructor0(Class.java:2671)         at java.lang.Class.newInstance0(Class.java:321)         at java.lang.Class.newInstance(Class.java:303)         at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3618)         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4104

I find this class exists in el-api.jar which is not in the classpath. So I add el-api.jar to the WEB-INF/lib directory. I then get the following error:

 INFO: JSF1048: PostConstruct/PreDestroy annotations present.  ManagedBeans methods marked with these annotations will have said annotations processed. Sep 19, 2008 5:37:50 PM com.sun.faces.config.ConfigureListener installExpressionFactory SEVERE: Error Instantiating ExpressionFactory java.lang.ClassNotFoundException: com.sun.el.ExpressionFactoryImpl         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)         at java.lang.Class.forName0(Native Method)         at java.lang.Class.forName(Class.java:164)         at com.sun.faces.config.ConfigureListener.installExpressionFactory(ConfigureListener.java:1521)

This library appears to be in el-ri.jar or JSP 2.1 jar. Am I doing something wrong? Is there a place that explains how to run seam applications on tomcat 5.5.x? Any help is greatly appreciated!

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  1. I got this to work. I ran ant tomcat55 under the seam/examples/jpa example. This included the el-.jars needed. I then ran ‘ant clean’ and ‘ant jboss-embeded’ and manually copied in all of the el-.jars from the tomcat55 make. This got past my problem above. Now I’m able to start tomcat 5.5.9 with embedded JBoss. I can run the booking example now with no problems.

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