Simon Xianyu created LOG4J2-1346:
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Summary: Throw exception in Log4jServletContextListener preventing
jetty-maven-plugin run-forked.
Key: LOG4J2-1346
URL: https://issues.apache.org/jira/browse/LOG4J2-1346
Project: Log4j 2
Issue Type: Bug
Components: Web/Servlet
Affects Versions: 2.5
Reporter: Simon Xianyu
Priority: Minor
I tried to integrate jacoco in my maven web project.
However it always failed with the following logs:
[WARNING] FAILED
o.e.j.m.p.JettyWebAppContext@1d831c2{/,file:/D:/works/paypos2/jacoco-spring/src/main/webapp/,UNAVAILABLE}{file:/D:/works/paypos2/jacoco-spring/src/main/webapp/}:
java.lang.IllegalStateException: C
ontext destroyed before it was initialized.
java.lang.IllegalStateException: Context destroyed before it was initialized.
at
org.apache.logging.log4j.web.Log4jServletContextListener.contextDestroyed(Log4jServletContextListener.java:55)
I read the code and found Exception throw in
org.apache.logging.log4j.web.Log4jServletContextListener.contextDestroyed:
if (this.servletContext == null || this.initializer == null) {
throw new IllegalStateException("Context destroyed before it was
initialized.");
}
This runtime exception fails jetty-maven-plugin web application configuration
validation.
So I have to write my own Listener to work around: (Log4jWebLifeCycle is not
public, so I have to use public interface to operate.)
public void contextDestroyed(final ServletContextEvent event) {
// if (this.servletContext == null || this.initializer == null) {
// throw new IllegalStateException("Context destroyed before it was
initialized.");
// }
// LOGGER.debug("Log4jServletContextListener ensuring that Log4j shuts down
properly.");
if (this.initializer != null) {
if (this.initializer instanceof Log4jWebSupport) {
((Log4jWebSupport)this.initializer).clearLoggerContext(); // the
application is finished shutting down now
}
this.initializer.stop();
}
}
I think using a warning log is better than throw an exception in
contextDestroyed, because this is shutting down stage.
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