关于java：Tomcat 7生产服务器上的java：VerifyError可能是由Apache Commons Logging 1.0.4引起的

VerifyError on Tomcat 7 production server probably caused by Apache Commons Logging 1.0.4

我正在Tomcat 7上开发webapp。在本地版本的Tomcat上一切正常，但是在生产服务器上部署它时，会引发此异常。

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java.lang.VerifyError: (class: org/apache/commons/logging/impl/Log4JLogger, method: fatal signature: (Ljava/lang/Object;Ljava/lang/Throwable;)V) Incompatible object argument for function call
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2595)
at java.lang.Class.getConstructor0(Class.java:2895)
at java.lang.Class.getConstructor(Class.java:1731)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.apache.fop.apps.FopFactory.<clinit>(FopFactory.java:68)
at cz.soma.tomcat.generator.DokumentaceUtils.createPdfDocument(DokumentaceUtils.java:818)
at cz.soma.tomcat.generator.FileFactory.createPdfDocument(FileFactory.java:58)
at cz.soma.tomcat.generator.Generator.doPost(Generator.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

当我尝试FopFactory.newInstance();时(从Apache FOP 1.0)抛出错误。之后，它尝试LogFactory.getLog(FopFactory.class);。它导致logClass.getConstructor(logConstructorSignature);被调用，其中logConstructorSignature包含一个String.class。 (至少在我的本地计算机上)

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try {
logConstructor = logClass.getConstructor(logConstructorSignature);
return (logConstructor);
} catch (Throwable t) {
throw new LogConfigurationException
("No suitable Log constructor" +
logConstructorSignature+" for" + logClassName, t);
}

此后称为java.lang.Class函数并引发异常。
您知道什么原因，为什么错误仅在生产服务器上引发，而不在我的本地计算机上引发？

相关讨论

为什么会发生此错误(java.lang.VerifyError)？

java.lang.VerifyError将是在针对与运行时(在生产服务器中)使用的库不同的库进行编译时的结果。

建议1：

您可以使用commons-logging-1.1.1.jar代替commons-logging-1.0.4.jar。然后重建您的项目并检查。

资源链接：http://www.java-samples.com/showtutorial.php?tutorialid=674

建议#2：

如果使用的是maven，则在pom.xml中添加此依赖项，

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<dependency>
<groupId>commons-logging</groupId>
commons-logging</artifactId>
<version>1.1.1</version>
</dependency>

并从pom.xml

中删除以下依赖项

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<dependency>
<groupId>commons-logging</groupId>
commons-logging</artifactId>
<version>1.0.4</version>
</dependency>

资源链接：获取java.lang.ClassNotFoundException：org.apache.commons.logging.LogFactory异常

建议3：

templatetypedef发现了问题并给出了2个解决方案

A VerifyError usually means that you loaded in a class file that is
somehow malformed or which references another class file that has
changed in a way that causes the code in another class file to no
longer be valid. For example, if you compiled a class file that
referenced a method in some other class, then independently modified
and recompiled the second class after altering that method's
signature, you'd get this sort of error.

I'd suggest doing a clean build and seeing if this issue goes away. If
not, check whether you're using up-to-date JARs and source files.

资源链接：https://stackoverflow.com/a/5411528/2293534

建议4：

如果本地服务器和生产服务器之间的JDK版本不匹配，请尽可能使其相同。您也可以尝试使用其他JDK版本和其他计算机进行编译。

资源链接：出现java.lang.VerifyError

的原因

希望对您有所帮助。