Which server config are you using?
I got the same problem and where can we get security.properties, ejb.properties.
I just find out that the problem is the JDK version. If I set JAVA_HOME to point to JDK whose version is 1.3.1_02, I got the above problem. Then If I change JAVA_HOME to point to JDK whose version is "1.3.0", I do not have the problem. Here is the JDK version that can fix the problem:
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)
Hope that this is It.
I had this same problem using jboss-3.0.4_tomcat-4.1.12 and j2sdk1.4.x on Win2000. I encountered the problem after I upgraded to jdk 1.4 from jdk 1.3. I solved the problem by removing j2ee.jar from <jboss-home>/server/<config-name>/lib. Apparently j2ee.jar cannot be in the classpath.