java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.util.ExtensionValidator

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Oracle Community by sebby, 1 year ago
Could not initialize class org.apache.catalina.util.ExtensionValidator
java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.util.ExtensionValidator
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4963)
at com.sun.webserver.connector.nsapi.WebModule.start(WebModule.java:240)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1224)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:924)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1224)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:520)
at com.sun.webserver.connector.nsapi.WebContainer.start(WebContainer.java:497)
at com.sun.webserver.init.J2EERunner.confPostInit(J2EERunner.java:304)

Users with the same issue

You are the first who have seen this exception.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.