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基于旧 Java Servlet (Struts) 的应用程序的 Log4J 升级中的多个问题

发布于 2025-01-09 03:01:03 字数 2447 浏览 0 评论 0原文

现状

Java应用程序开发版本：Java 1.5开发的基于Struts的GUI应用程序编译使用的JDK：1.7 Tomcat 服务器：应用程序托管在 tomcat 6 上。当前 Log4J 版本：2.3 构建工具：Maven 3

目标

将Log4J升级到最新版本。

问题描述

我在升级时尝试了多种方法，但都是tomcat和Java的各种组合。但我遇到了不同的问题。以下是问题列表。

**JDK 7，Log4j-2.3 Tomcat 6（当前情况）**

能够构建war文件，应用程序部署并顺利运行。

JDK 7 和 Tomcat 6、Log4j-2.17.1

生成的 war 文件不包含应用程序中的所有类。（相当令人惊讶）。我启用了 Maven 的调试日志，但没有发现任何令人惊讶的条目。我将 Log4j 版本恢复到 2.3，一切恢复正常。尝试了多次迭代，但仍然是同样的问题。

JDK 8和Tomcat 6，Log4j-2.17.1

我能够成功构建war文件（包含所有类），并将其部署到tomcat。但是当我打开webapp的登陆页面时，出现错误： 无法解析 java.io.ObjectInputStream 类型。它是从所需的.class文件间接引用的。

经过调查，我了解到这并不是很多帖子中提到的JDK 8的错误，建议升级Tomcat版本。

JDK 8和Tomcat 8，Log4j-2.17.1

成功构建war文件。将其部署到 Tomcat 时，我们收到以下错误：

SEVERE [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.processAnnotationsJar 无法处理 Jar [jar:file:/C:/ 中的 Jar 条目 [xxxxxxxx.class] xxxx/xxx/xxxx.war!/WEB-INF/lib/client-1.1.jar] 用于注释 org.apache.tomcat.util.bcel.classfile.ClassFormatException：常量池中无效的字节标记：60

根据调查和各种帖子，我们通过在 tomcat 的配置 catalina.properties 文件中添加 JarsToSkip 跳过了对此 jar 的 jar 扫描。

JDK 8 和 Tomcat 8、Log4j- 2.17.1、catalina.properties，其中包含有问题的 Jar 的 jarsToSkip 条目

能够构建 war 文件，并将其部署到 Tomcat。登录页面成功打开。

当我提交登录表单时，应用程序遇到以下错误： java.lang.NoSuchMethodError: org.apache.catalina.core.StandardContext.findApplicationParameters()[Lorg/apache/catalina/deploy/ApplicationParameter;

查看文档和代码，方法签名一切看起来都很好。出现这个错误真是令人惊讶。

Tomcat 在正确的位置也有 catalina.jar、servlet-api.jar 文件。

尝试使用更高版本的tomcat。

JDK 8、Tomcat 9、Log4j- 2.17.1、catalina.properties 以及有问题的 Jar 的 jarsToSkip 条目

再次出现相同的错误： java.lang.NoSuchMethodError: org.apache.catalina.core.StandardContext.findApplicationParameters()[Lorg/apache/catalina/deploy/ApplicationParameter;

** 这次尝试使用 Tomcat 10 **

现在有了这个tomcat servlet api 的版本打包在 jakarta.servlet.* 包中，而不是 javax.servlet.*

这将需要大量的代码更改和测试，因此我我正在回避它。

我在寻找什么

您能帮助我了解我尝试的整个过程是否正确或应该更改哪些内容？
我应该使用JDK和Tomcat的哪种组合才能使用log4J-2.17.1
不同的组合出现了不同的错误，我应该首先关注并尽量避免哪个错误，才能解决这种情况。
有关如何解决此错误的任何建议。

如果您需要更多详细信息，请告诉我，以便能够提供帮助。

PS：

我对 Java、Struts、Maven、Tomcat 工具相当陌生，我可能错过了一些看似基本的解决方案。我愿意接受各种建议。

谢谢。

原文

Current Situation

Java Application development version: a Struts based GUI application developed in Java 1.5
JDK used for Compilation: 1.7
Tomcat Server: Application is hosted on tomcat 6.
Current Log4J version: 2.3
Build Tool: Maven 3

Aim

Upgrade Log4J to latest version.

Problem Description

I have tried multiple ways while upgrading but all various combinations of tomcat and Java. But I am encountering different issues.
Below is the list of issues.

**JDK 7, Log4j-2.3 Tomcat 6 ( Current Situation) **

Able to build war file, application gets deployed and runs smoothly.

JDK 7 and Tomcat 6 , Log4j- 2.17.1

The war file generated is not having all the classes from the application. ( Quite surprising ).
I enabled the debug logs for maven but did not find any surprising entry.
I reverted the Log4j version back to 2.3, and things came back to normal.
Tried multiple iterations of this, but still the same issue.

JDK 8 and Tomcat 6 , Log4j- 2.17.1

I am able to build war file successfully ( with all the classes) , and deploy it to tomcat. But when I open the landing page of webapp, I am presented with an error:
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files

On investigating I understood that it is not really a bug with JDK 8 as mentioned in many posts, and it is recommended to upgrade the Tomcat version.

JDK 8 and Tomcat 8 , Log4j- 2.17.1

Successfully able to build war file.
While deploying it to Tomcat we get below error:

SEVERE [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.processAnnotationsJar Unable to process Jar entry [xxxxxxxx.class] from Jar [jar:file:/C:/xxxx/xxx/xxxx.war!/WEB-INF/lib/client-1.1.jar] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 60

Based on investigation and various posts, we skipped jar scanning for this jar, by adding JarsToSkip in tomcat’s configuration catalina.properties file.

JDK 8 and Tomcat 8 , Log4j- 2.17.1, catalina.properties with jarsToSkip entry for problematic Jar

Able to build war file, and deploy it to Tomcat.
Login page opens successfully.

When I submit the login form, application encounters below error:
java.lang.NoSuchMethodError: org.apache.catalina.core.StandardContext.findApplicationParameters()[Lorg/apache/catalina/deploy/ApplicationParameter;

Looking at the documentation and code, everything looks fine with method's signature.
Quite surprising to have this error.

Tomcat also has catalina.jar, servlet-api.jar files at the right location.

Trying with higher tomcat version.

JDK 8, Tomcat 9, Log4j- 2.17.1, catalina.properties with jarsToSkip entry for problematic Jar

again presented with same error:
java.lang.NoSuchMethodError: org.apache.catalina.core.StandardContext.findApplicationParameters()[Lorg/apache/catalina/deploy/ApplicationParameter;

** Tried with Tomcat 10 this time **

Now with this version of tomcat servlet apis are packaged in jakarta.servlet.* package instead of javax.servlet.*

This will need lot of code changes and testing, thus I am avoiding it.

What I am looking for

Can you help me understand if the overall process I tried is correct or what should be changed?
Which combination of JDK, and Tomcat should I use to be able to use log4J-2.17.1
There have been different errors at different combinations, which error should I focus first and try to avoid, to be able to solve this situation.
Any suggestions on how this error can be solved.

Please let me know if you need any more details around this, to be able to help.

P.S.:

I am fairly new in Java, Struts, Maven, Tomcat tools, and I may have missed some solutions which may seem basic. I am open for various suggestions.

Thanks.

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