On windows 98, when I start Tomcat I don't get the index page.And when I shutdown, a Dos windows appears whith the message below:

Using CATALINA_BASE: ..
Using CATALINA_HOME: ..
Using CATALINA_TMPDIR: .. emp
Using JAVA_HOME: C:jdk1.2.2
Bootstrap: Class loader creation threw exception
java.lang.IllegalMonitorStateException: current thread not owner
at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(
StandardClassLoader.java, Compiled Code)
at org.apache.catalina.loader.StandardClassLoader. (StandardClassLo
ader.java, Compiled Code)
at org.apache.catalina.startup.ClassLoaderFactory.createClassLoader(Clas
sLoaderFactory.java, Compiled Code)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java, Compiled C
ode)