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Posted to users@tomcat.apache.org by Marcus Williford <mw...@gmail.com> on 2006/11/14 12:14:15 UTC
Help with Creating my own Realm extending RealmBase, ClassNotFoundException issue

I have attempted to create my own Realm, as I need to do authentication via
a custom set of rules.  I have attempted several things ( hours of
attempting this with no luck), and can't seem to get class loaded.

Tomcat5.5.20
Elcipse 3.2

1.  I've put something like this in my server.xml
<Realm className="com.devmonkey.agent.TestRealm"/>   I've also tried
className="TestRealm", etc....

2.  I've compiled TestRealm into a jar, along with a
mbeans-descriptors.xmlfile.  Placed this into the
CATALINA_HOME/server/lib as a .jar file.  I have
tried every angle on the name, placement.  I've put the class directly in
the CATALINA_HOME/server/classes.  I've deleted the .class files on my
webapp/classes directory to make sure there is only a single copy.

3.  TestRealm was extended from UserDatabaseRealm as a test "public class
TestRealm extends UserDatabaseRealm"

4.  I also attempted to extend RealmBase, override the correct classes,
etc...

5.  I get the following, no matter what I do!

Nov 14, 2006 2:56:13 AM org.apache.tomcat.util.digester.DigesterstartElement
SEVERE: Begin event threw exception
java.lang.ClassNotFoundException: com.devmonkey.agent.TestRealm
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at org.apache.tomcat.util.digester.ObjectCreateRule.begin(
ObjectCreateRule.java:204)
    at org.apache.tomcat.util.digester.Rule.begin(Rule.java:152)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java
:1275)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
Source)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:489)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:523)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:266)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
Nov 14, 2006 2:56:13 AM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml:
java.lang.ClassNotFoundException: com.devmonkey.agent.TestRealm
    at org.apache.tomcat.util.digester.Digester.createSAXException(
Digester.java:2725)
    at org.apache.tomcat.util.digester.Digester.createSAXException(
Digester.java:2751)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java
:1278)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
Source)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:489)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:523)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:266)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
Nov 14, 2006 2:56:13 AM org.apache.tomcat.util.digester.DigesterstartElement
SEVERE: Begin event threw exception
java.lang.ClassNotFoundException: com.devmonkey.agent.TestRealm
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at org.apache.tomcat.util.digester.ObjectCreateRule.begin(
ObjectCreateRule.java:204)
    at org.apache.tomcat.util.digester.Rule.begin(Rule.java:152)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java
:1275)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
Source)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:489)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:543)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Nov 14, 2006 2:56:13 AM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml:
java.lang.ClassNotFoundException: com.devmonkey.agent.TestRealm
    at org.apache.tomcat.util.digester.Digester.createSAXException(
Digester.java:2725)
    at org.apache.tomcat.util.digester.Digester.createSAXException(
Digester.java:2751)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java
:1278)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
    at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
Source)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:489)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:543)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Nov 14, 2006 2:56:13 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 0 ms
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Caused by: java.lang.NullPointerException
    at org.apache.catalina.startup.Catalina.await(Catalina.java:615)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:575)
    ... 6 more

6.  I am starting to suspect that
java.security.AccessController.doPrivileged has something to do with it, as
I don't know if it is in the classpath for tomcat, but I'm not sure how I
can troubleshoot this further.

Please assist!

mw