pischky opened a new issue, #3401:
URL: https://github.com/apache/logging-log4j2/issues/3401
## Description
I'm trying to port a project using JSP from Tomcat 9 to Tomcat 10.1.34 but
"Apache Log4j Tag Library" ("log4j-taglib-2.24.3.jar")
is not working anymore.
## Configuration
log4j-taglib-2.24.3.jar
Winows 7
Java 21.0.2 / Oracle
## Logs
HTTP Status 500 – Internal Server Error
Type Exception Report
Message java.lang.NoClassDefFoundError:
javax/servlet/jsp/tagext/BodyTagSupport
Beschreibung The server encountered an unexpected condition that prevented
it from fulfilling the request.
Exception
jakarta.servlet.ServletException: java.lang.NoClassDefFoundError:
javax/servlet/jsp/tagext/BodyTagSupport
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:70)
Root Cause
java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/BodyTagSupport
java.base/java.lang.ClassLoader.defineClass1(Native Method)
java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027)
java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2350)
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2219)
org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:813)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1335)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1183)
org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1244)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1477)
org.apache.jasper.compiler.Parser.parse(Parser.java:138)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:264)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:109)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:194)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:367)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:345)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:331)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:396)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:377)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:325)
jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:70)
Root Cause
java.lang.ClassNotFoundException: javax.servlet.jsp.tagext.BodyTagSupport
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1374)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1183)
java.base/java.lang.ClassLoader.defineClass1(Native Method)
java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027)
java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2350)
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2219)
org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:813)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1335)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1183)
org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1244)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1477)
org.apache.jasper.compiler.Parser.parse(Parser.java:138)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:264)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:109)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:194)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:367)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:345)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:331)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:396)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:377)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:325)
jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:70)
Hinweis Der komplette Stacktrace der Ursache ist in den Server logs zu finden
## Reproduction
<%@ taglib prefix="log" uri="http://logging.apache.org/log4j/tld/log"; %>
<log:setLogger logger="/index.jsp" />
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