Yacov Wolfowicz

So, If I'm following you right, I should place the CustomRealm.class, somewhere in Tomcat's classpath, right?

a week went by....

I still can't figure out what's wrong with my configuration. I'll take the chance of appearing stupid, and ask the stupid question:
The class I'm implementing is actually part of the servlet. Should I make it a "library" class for Apache?

Thanks for the reply.

I put a breakpoint at the constructor of my class and never get there, so i suspect something in the configuration is broken, which i cannot see. Or, am I missing something else?

Hi,

I'm trying to customize the way authentication is done.
I created a class, overriding JDBCRealm which delegates all calls to JDBCRealm. When using it in my server.xml file, I get some annoying exceptions and TOMCAT won't start.

What am I missing??


Thanks.

I use Tomcat 5.5, with eclipse.

the exceptions:


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:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: java.lang.NullPointerException
at org.apache.catalina.startup.Catalina.await(Catalina.java:616)
at org.apache.catalina.startup.Catalina.start(Catalina.java:576)
... 6 more



working server.xml:
<Realm className="org.apache.catalina.realm.JDBCRealm" connectionName="db2admin" connectionPassword="mypassword" connectionURL="jdbc:db2://127.0.0.1:50000/MYDB" debug="99" driverName="com.ibm.db2.jcc.DB2Driver" roleNameCol="ROLE" userCredCol="PASSWORD" userNameCol="USERNAME" userRoleTable="DB2ADMIN.USER_ROLES" userTable="DB2ADMIN.USERS"/>

NOT working server.xml

<Realm className="com.adphreak.services.CustomJDBCRealm" connectionName="db2admin" connectionPassword="mypassword" connectionURL="jdbc:db2://127.0.0.1:50000/MYDB" debug="99" driverName="com.ibm.db2.jcc.DB2Driver" roleNameCol="ROLE" userCredCol="PASSWORD" userNameCol="USERNAME" userRoleTable="DB2ADMIN.USER_ROLES" userTable="DB2ADMIN.USERS"/>

my class
package com.mycode.services; import java.beans.PropertyChangeListener; import java.io.IOException; import java.security.Principal; import java.security.cert.X509Certificate; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; import java.util.ArrayList; import javax.management.MBeanServer; import javax.management.ObjectName; import org.apache.catalina.Container; import org.apache.catalina.Context; import org.apache.catalina.LifecycleException; import org.apache.catalina.LifecycleListener; import org.apache.catalina.Realm; import org.apache.catalina.connector.Request; import org.apache.catalina.connector.Response; import org.apache.catalina.deploy.SecurityConstraint; import org.apache.catalina.realm.JDBCRealm; /** * */ public class CustomJDBCRealm extends JDBCRealm { /** * */ public CustomJDBCRealm() { // TODO Auto-generated constructor stub super(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#authenticate(java.lang.String, java.lang.String) */ @Override public synchronized Principal authenticate(String arg0, String arg1) { String strUserName = new String(arg0); return super.authenticate(strUserName, arg1); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#authenticate(java.sql.Connection, java.lang.String, java.lang.String) */ @Override public synchronized Principal authenticate(Connection dbConnection, String username, String credentials) { // TODO Auto-generated method stub return super.authenticate(dbConnection, username, credentials); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#close(java.sql.Connection) */ @Override protected void close(Connection arg0) { // TODO Auto-generated method stub super.close(arg0); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#credentials(java.sql.Connection, java.lang.String) */ @Override protected PreparedStatement credentials(Connection arg0, String arg1) throws SQLException { // TODO Auto-generated method stub return super.credentials(arg0, arg1); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getConnectionName() */ @Override public String getConnectionName() { // TODO Auto-generated method stub return super.getConnectionName(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getConnectionPassword() */ @Override public String getConnectionPassword() { // TODO Auto-generated method stub return super.getConnectionPassword(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getConnectionURL() */ @Override public String getConnectionURL() { // TODO Auto-generated method stub return super.getConnectionURL(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getDriverName() */ @Override public String getDriverName() { // TODO Auto-generated method stub return super.getDriverName(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getName() */ @Override protected String getName() { // TODO Auto-generated method stub return super.getName(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getPassword(java.lang.String) */ @Override protected synchronized String getPassword(String arg0) { // TODO Auto-generated method stub return super.getPassword(arg0); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getPrincipal(java.lang.String) */ @Override protected synchronized Principal getPrincipal(String username) { // TODO Auto-generated method stub return super.getPrincipal(username); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getRoleNameCol() */ @Override public String getRoleNameCol() { // TODO Auto-generated method stub return super.getRoleNameCol(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getRoles(java.lang.String) */ @Override protected ArrayList getRoles(String arg0) { // TODO Auto-generated method stub return super.getRoles(arg0); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getUserCredCol() */ @Override public String getUserCredCol() { // TODO Auto-generated method stub return super.getUserCredCol(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getUserNameCol() */ @Override public String getUserNameCol() { // TODO Auto-generated method stub return super.getUserNameCol(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getUserRoleTable() */ @Override public String getUserRoleTable() { // TODO Auto-generated method stub return super.getUserRoleTable(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#getUserTable() */ @Override public String getUserTable() { // TODO Auto-generated method stub return super.getUserTable(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#open() */ @Override protected Connection open() throws SQLException { // TODO Auto-generated method stub return super.open(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#release(java.sql.Connection) */ @Override protected void release(Connection dbConnection) { // TODO Auto-generated method stub super.release(dbConnection); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#roles(java.sql.Connection, java.lang.String) */ @Override protected synchronized PreparedStatement roles(Connection arg0, String arg1) throws SQLException { // TODO Auto-generated method stub return super.roles(arg0, arg1); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setConnectionName(java.lang.String) */ @Override public void setConnectionName(String connectionName) { // TODO Auto-generated method stub super.setConnectionName(connectionName); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setConnectionPassword(java.lang.String) */ @Override public void setConnectionPassword(String connectionPassword) { // TODO Auto-generated method stub super.setConnectionPassword(connectionPassword); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setConnectionURL(java.lang.String) */ @Override public void setConnectionURL(String connectionURL) { // TODO Auto-generated method stub super.setConnectionURL(connectionURL); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setDriverName(java.lang.String) */ @Override public void setDriverName(String driverName) { // TODO Auto-generated method stub super.setDriverName(driverName); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setRoleNameCol(java.lang.String) */ @Override public void setRoleNameCol(String roleNameCol) { // TODO Auto-generated method stub super.setRoleNameCol(roleNameCol); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setUserCredCol(java.lang.String) */ @Override public void setUserCredCol(String userCredCol) { // TODO Auto-generated method stub super.setUserCredCol(userCredCol); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setUserNameCol(java.lang.String) */ @Override public void setUserNameCol(String userNameCol) { // TODO Auto-generated method stub super.setUserNameCol(userNameCol); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setUserRoleTable(java.lang.String) */ @Override public void setUserRoleTable(String userRoleTable) { // TODO Auto-generated method stub super.setUserRoleTable(userRoleTable); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#setUserTable(java.lang.String) */ @Override public void setUserTable(String userTable) { // TODO Auto-generated method stub super.setUserTable(userTable); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#start() */ @Override public void start() throws LifecycleException { // TODO Auto-generated method stub super.start(); } /* (non-Javadoc) * @see org.apache.catalina.realm.JDBCRealm#stop() */ @Override public void stop() throws LifecycleException { // TODO Auto-generated method stub super.stop(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#addLifecycleListener(org.apache.catalina.LifecycleListener) */ @Override public void addLifecycleListener(LifecycleListener listener) { // TODO Auto-generated method stub super.addLifecycleListener(listener); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#addPropertyChangeListener(java.beans.PropertyChangeListener) */ @Override public void addPropertyChangeListener(PropertyChangeListener listener) { // TODO Auto-generated method stub super.addPropertyChangeListener(listener); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#authenticate(java.security.cert.X509Certificate[]) */ @Override public Principal authenticate(X509Certificate[] arg0) { // TODO Auto-generated method stub return super.authenticate(arg0); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#authenticate(java.lang.String, byte[]) */ @Override public Principal authenticate(String username, byte[] credentials) { // TODO Auto-generated method stub return super.authenticate(username, credentials); } @Override public Principal authenticate(String arg0, String arg1, String arg2, String arg3, String arg4, String arg5, String arg6, String arg7) { // TODO Auto-generated method stub return super.authenticate(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#backgroundProcess() */ @Override public void backgroundProcess() { // TODO Auto-generated method stub super.backgroundProcess(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#destroy() */ @Override public void destroy() { // TODO Auto-generated method stub super.destroy(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#digest(java.lang.String) */ @Override protected String digest(String arg0) { // TODO Auto-generated method stub return super.digest(arg0); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#findLifecycleListeners() */ @Override public LifecycleListener[] findLifecycleListeners() { // TODO Auto-generated method stub return super.findLifecycleListeners(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#findSecurityConstraints(org.apache.catalina.connector.Request, org.apache.catalina.Context) */ @Override public SecurityConstraint[] findSecurityConstraints(Request arg0, Context arg1) { // TODO Auto-generated method stub return super.findSecurityConstraints(arg0, arg1); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getAllRolesMode() */ @Override public String getAllRolesMode() { // TODO Auto-generated method stub return super.getAllRolesMode(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getContainer() */ @Override public Container getContainer() { // TODO Auto-generated method stub return super.getContainer(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getController() */ @Override public ObjectName getController() { // TODO Auto-generated method stub return super.getController(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getDigest() */ @Override public String getDigest() { // TODO Auto-generated method stub return super.getDigest(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getDigest(java.lang.String, java.lang.String) */ @Override protected String getDigest(String arg0, String arg1) { // TODO Auto-generated method stub return super.getDigest(arg0, arg1); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getDigestEncoding() */ @Override public String getDigestEncoding() { // TODO Auto-generated method stub return super.getDigestEncoding(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getDomain() */ @Override public String getDomain() { // TODO Auto-generated method stub return super.getDomain(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getInfo() */ @Override public String getInfo() { // TODO Auto-generated method stub return super.getInfo(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getObjectName() */ @Override public ObjectName getObjectName() { // TODO Auto-generated method stub return super.getObjectName(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getPrincipal(java.security.cert.X509Certificate) */ @Override protected Principal getPrincipal(X509Certificate usercert) { // TODO Auto-generated method stub return super.getPrincipal(usercert); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getType() */ @Override public String getType() { // TODO Auto-generated method stub return super.getType(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#getValidate() */ @Override public boolean getValidate() { // TODO Auto-generated method stub return super.getValidate(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#hasMessageDigest() */ @Override protected boolean hasMessageDigest() { // TODO Auto-generated method stub return super.hasMessageDigest(); } @Override public boolean hasResourcePermission(Request arg0, Response arg1, SecurityConstraint[] arg2, Context arg3) throws IOException { // TODO Auto-generated method stub return super.hasResourcePermission(arg0, arg1, arg2, arg3); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#hasRole(java.security.Principal, java.lang.String) */ @Override public boolean hasRole(Principal arg0, String arg1) { // TODO Auto-generated method stub return super.hasRole(arg0, arg1); } @Override public boolean hasUserDataPermission(Request arg0, Response arg1, SecurityConstraint[] arg2) throws IOException { // TODO Auto-generated method stub return super.hasUserDataPermission(arg0, arg1, arg2); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#init() */ @Override public void init() { // TODO Auto-generated method stub super.init(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#postDeregister() */ @Override public void postDeregister() { // TODO Auto-generated method stub super.postDeregister(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#postRegister(java.lang.Boolean) */ @Override public void postRegister(Boolean registrationDone) { // TODO Auto-generated method stub super.postRegister(registrationDone); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#preDeregister() */ @Override public void preDeregister() throws Exception { // TODO Auto-generated method stub super.preDeregister(); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#preRegister(javax.management.MBeanServer, javax.management.ObjectName) */ @Override public ObjectName preRegister(MBeanServer server, ObjectName name) throws Exception { // TODO Auto-generated method stub return super.preRegister(server, name); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#removeLifecycleListener(org.apache.catalina.LifecycleListener) */ @Override public void removeLifecycleListener(LifecycleListener listener) { // TODO Auto-generated method stub super.removeLifecycleListener(listener); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#removePropertyChangeListener(java.beans.PropertyChangeListener) */ @Override public void removePropertyChangeListener(PropertyChangeListener listener) { // TODO Auto-generated method stub super.removePropertyChangeListener(listener); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setAllRolesMode(java.lang.String) */ @Override public void setAllRolesMode(String allRolesMode) { // TODO Auto-generated method stub super.setAllRolesMode(allRolesMode); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setContainer(org.apache.catalina.Container) */ @Override public void setContainer(Container container) { // TODO Auto-generated method stub super.setContainer(container); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setController(javax.management.ObjectName) */ @Override public void setController(ObjectName controller) { // TODO Auto-generated method stub super.setController(controller); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setDigest(java.lang.String) */ @Override public void setDigest(String digest) { // TODO Auto-generated method stub super.setDigest(digest); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setDigestEncoding(java.lang.String) */ @Override public void setDigestEncoding(String charset) { // TODO Auto-generated method stub super.setDigestEncoding(charset); } /* (non-Javadoc) * @see org.apache.catalina.realm.RealmBase#setValidate(boolean) */ @Override public void setValidate(boolean validate) { // TODO Auto-generated method stub super.setValidate(validate); } /* (non-Javadoc) * @see java.lang.Object#clone() */ @Override protected Object clone() throws CloneNotSupportedException { // TODO Auto-generated method stub return super.clone(); } /* (non-Javadoc) * @see java.lang.Object#equals(java.lang.Object) */ @Override public boolean equals(Object arg0) { // TODO Auto-generated method stub return super.equals(arg0); } /* (non-Javadoc) * @see java.lang.Object#finalize() */ @Override protected void finalize() throws Throwable { // TODO Auto-generated method stub super.finalize(); } /* (non-Javadoc) * @see java.lang.Object#hashCode() */ @Override public int hashCode() { // TODO Auto-generated method stub return super.hashCode(); } /* (non-Javadoc) * @see java.lang.Object#toString() */ @Override public String toString() { // TODO Auto-generated method stub return super.toString(); } }