试图用java.exe-jar运行我的jar时出现noclasdeffoundError…怎么了?

我有一个应用程序,我正试图将它包装到一个jar中,以便更容易地部署。当作为从类路径可访问的一组类运行时,应用程序编译并运行良好(在Windows命令窗口中)。但是,当我在同一个CMD窗口中添加我的类并尝试用Java 1.6运行它时,我开始获得异常:

C:\dev\myapp\src\common\datagen>C:/apps/jdk1.6.0_07/bin/java.exe -classpath C:\myapp\libs\commons -logging-1.1.jar -server -jar DataGen.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
    at com.example.myapp.fomc.common.datagen.DataGenerationTest.<clinit>(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
    ... 1 more

有趣的是,有问题的logfactory似乎在commons-logging-1.1.jar中,它位于指定的类路径中。JAR文件(是的,它确实存在):

C:\dev\myapp\src\common\datagen>dir C:\myapp\libs\commons-logging-1.1.jar
 Volume in drive C is Local Disk
 Volume Serial Number is ECCD-A6A7

 Directory of C:\myapp\libs

12/11/2007  11:46 AM            52,915 commons-logging-1.1.jar
           1 File(s)         52,915 bytes
           0 Dir(s)  10,956,947,456 bytes free

commons-logging-1.1.jar文件的内容:

C:\dev\myapp\src\common\datagen>jar -tf C:\myapp\libs\commons-logging-1.1.jar
META-INF/
META-INF/MANIFEST.MF
org/
org/apache/
org/apache/commons/
org/apache/commons/logging/
org/apache/commons/logging/impl/
META-INF/LICENSE.txt
META-INF/NOTICE.txt
org/apache/commons/logging/Log.class
org/apache/commons/logging/LogConfigurationException.class
org/apache/commons/logging/LogFactory$1.class
org/apache/commons/logging/LogFactory$2.class
org/apache/commons/logging/LogFactory$3.class
org/apache/commons/logging/LogFactory$4.class
org/apache/commons/logging/LogFactory$5.class
org/apache/commons/logging/LogFactory.class
... (more classes in commons-logging-1.1 ...)

是的,Commons日志记录具有logFactory类。最后,我的罐子清单的内容是:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.5
Created-By: 10.0-b23 (Sun Microsystems Inc.)
Main-Class: com.example.myapp.fomc.common.datagen.DataGenerationTest
Class-Path: commons-logging-1.1.jar commons-lang.jar antlr.jar toplink
 .jar GroboTestingJUnit-1.2.1-core.jar junit.jar

这让我和我的同事们都很困惑。为了筛选答案,至少目前为止,第三方解决方案可能由于许可限制和公司政策(例如:用于创建exe或打包jar的工具)而失效。最终的目标是创建一个JAR,它可以从我的开发窗口框复制到Linux服务器(具有任何依赖JAR),并用于填充数据库(这样,在开发和部署环境中类路径可能会有所不同)。任何有关这个秘密的线索都会受到极大的赞赏!