[LOG4J2-3624] NoClassDefFoundError initializing PropertiesUtil in Servlet 2.5 container

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.18.0
• Component/s: API

Environment

Apache Tomcat/8.53

Linux 4.14.1294-220.533.amzn2

amd64

JVM 1.8.0_3420-b07, Red Hat. Inc

 

• Assignee: Unassigned
• Reporter: Nicholas Sushkin
• Created: 27/Oct/22 21:37
• Updated: 07/Feb/23 22:22

Description

The configuration I have in Tomcat 8 and Java 1.8 with the Servlet 2.5 style initialization works in 2.17.2, but breaks in 2.18.0 (and 2.19.0) with the following exception:

[localhost-startStop-1] Error configuring application listener of class org.apache.logging.log4j.web.Log4jServletContextListener
java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.util.PropertiesUtil
at org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:78)
at org.apache.logging.log4j.web.Log4jServletContextListener.<clinit>(Log4jServletContextListener.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
…
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4822)
…

With log4j 2.17.2, there is no exception and Log4jServletFilter initializes fine. 

I traced class loading during the web application initialization.

With 2.18.0, the following classes are loaded:

• log4j.web.Log4jServletContainerInitializer log4j-web-2.18.0.jar
• log4j.Logger log4j-api-2.18.0.jar
• log4j.web.Log4jServletContextListener log4j-api-2.18.0.jar
• log4j.web.Log4jWebSupport log4j-web-2.18.0.jar
• log4j.core.LifeCycle log4j-core-2.18.0.jar
• log4j.web.Log4jWebLifeCycle log4j-web-2.18.0.jar
• com.ofc.data.server.MyBatisConfiguratingContextListener from classes
• com.ofc.data.server.CleanupContextListener from classes
• log4j.web.Log4jServletFilter log4j-web-2.18.0.jar
• … other classes
• log4j.spi.ExtendedLogger
• log4j…
• log4j.message.ParameterizedMessageFactory
• log4j.util.Constants
• log4j.util.PropertiesUtil
• log4j.util.PropertySource
• …
• log4j.PropertySource$Comparator
• log4j.util.BiConsumer
• log4j.util.PropertiesUtil$Environment(Lambda)…
• log4j.util.ServiceLoaderUtil
• log4j.util.ServiceLoaderUtil.$ServiceLoaderSpliterator
• java.util.ServiceConfigurationError

With 2.17.2, it goes like this:

• log4j.web.Log4jServletContainerInitializer log4j-web-2.17.2.jar
• log4j.Logger log4j-api-2.17.2.jar
• log4j.web.Log4jServletContextListener log4j-api-2.17.2.jar
• log4j.web.Log4jWebSupport log4j-web-2.17.2.jar
• log4j.core.LifeCycle log4j-core-2.17.2.jar
• log4j.web.Log4jWebLifeCycle log4j-web-2.17.2.jar
• com.ofc.data.server.MyBatisConfiguratingContextListener from classes
• com.ofc.data.server.CleanupContextListener from classes
• log4j.web.Log4jServletFilter log4j-web-2.17.2.jar
• … other classes
• org.apache.tomcat.jdbc.pool.Validator
• log4j.spi.ExtendedLogger
• log4j…
• log4j.message.ParameterizedMessageFactory
• log4j.util.Constants
• log4j.util.PropertiesUtil
• log4j.util.PropertySource
• …
• log4j.PropertySource$Comparator
• log4j.util.BiConsumer
• log4j.util.PropertiesUtil$Environment(Lambda)…
• java.lang.invoke.LambdaForm$…
• log4j.util.EnvironmentPropertySource
• log4j.util.SystemPropertiesPropertySource
• log4j.util.PropertiesUtil.$Environment$$Lambda

In 2.8.0, log4j.util.PropertiesUtil.$Environment$$Lambda is loaded but not invoked.

It looks like there are recent changes in log4j.util.PropertiesUtil.$Environment in commits aaf13561e7 Piotr Karwasz 2022-03-10, 262828b193 2022-04-13. These are changes for LOG4J2-3427.

 

Issue Links

• links to: GitHub Pull Request #1263