2010/6/30 Robillard, Greg L <greg.l.robill...@lmco.com>:
> When LockoutRealm is added to configuration, tomcat will not start and I 
> receive the following errors.  All runs well when the wrapper is not used.
>
> Apache Tomcat 6.0.20 Server

The last released 6.0.x version is 6.0.26.  The 6.0.28 release
candidate build is at voting now.

> <Realm className="org.apache.catalina.realm.LockOutRealm" failureCount="5" 
> lockOutTime="300" cacheSize="1000" cacheRemovalWarningTime="3600">
>
>            <Realm className="org.apache.catalina.realm.DataSourceRealm" 
> digest="MD5"
>
>                   dataSourceName="jdbc/fltwinds" userTable="users" 
> userNameCol="username" userCredCol="password"
>
>                   userRoleTable="users" roleNameCol="role"/>
>
>  <Realm/>

The above line should be </Realm>


> java.lang.NullPointerException
>
>                at 
> sun.jkernel.DownloadManager.getBootClassPathEntryForClass(DownloadManager.java:928)
>
>                at 
> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:293)
>
>                at java.lang.ClassLoader.loadClass(ClassLoader.java:300)

That is JRE code. I suppose that it is caused by calling
ClassLoader.loadClass() with a null className.

Best regards,
Konstantin Kolinko

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