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See Tomcat 5.5 with several virtual hosts. I am now mysteriously getting startup errors on four of the domains. The error, as reported by log4j, is as follows:
ERROR Thread-1 org.apache.catalina.core.StandardContext - Error reading tld listeners
at org.apache.catalina.startup.TldConfig.processCache(
at org.apache.catalina.startup.TldConfig.execute(
at org.apache.catalina.core.StandardContext.processTlds(
at org.apache.catalina.core.StandardContext.start(
at org.apache.catalina.core.ContainerBase.addChildInternal(
at org.apache.catalina.core.ContainerBase.addChild(
at org.apache.catalina.core.StandardHost.addChild(
at org.apache.catalina.startup.HostConfig.deployDirectory(
at org.apache.catalina.startup.HostConfig.deployDirectories(
at org.apache.catalina.startup.HostConfig.deployApps(
at org.apache.catalina.startup.HostConfig.start(
at org.apache.catalina.startup.HostConfig.lifecycleEvent(
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(
at org.apache.catalina.core.ContainerBase.start(
at org.apache.catalina.core.StandardHost.start(
at org.apache.catalina.core.ContainerBase.start(
at org.apache.catalina.core.StandardEngine.start(
at org.apache.catalina.core.StandardService.start(
at org.apache.catalina.core.StandardServer.start(
at org.apache.catalina.startup.Catalina.start(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at org.apache.catalina.startup.Bootstrap.start(
at org.apache.catalina.startup.Bootstrap.main(

I have verified the tld files for JSTL. I have even tested with an empty web.xml file and removed all TLD and jar files (as simple as it gets), yet the error persists. The affected domains still function but I want to eliminate the errors. Can anyone suggest what to do next?
Saloon Keeper
Posts: 19076
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First thing I'd do is undeploy all the WARs - including erasing the exploded WARS in TOMCAT_HOME/webapps and the work files in TOMCAT_HOME/work. See if Tomcat can start clean with no apps. If so, rebuild the WARS from scratch and redeploy.

Second thing I'd do is install a whole new copy of Tomcat. A version 6 Tomcat, preferably. Tomcat 5 is about done.

Something sounds seriously scrambled in the innards of the system. You might also want to check the server hardware.
Mark Fraser
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Thanks for the suggestions. I fixed the problem by deleting some tldCache.ser files under the work folder.
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