为什么当我把mm.mysql-2.0.14-bin.jar拷贝到G:\XJ-web\tomcat目录下后启动tomcat时会出现错误，不能运行tomcat,窗口一闪而过，然后运行shutdown时报错：
G:\XJ-web\tomcat\bin>shutdown
Using CLASSPATH: ..\bin\bootstrap.jar;E:\j2sdk1.4.0_01\lib\tools.jar
Exception in thread "main" java.lang.IllegalArgumentException: addRepositoryInte
rnal: java.util.zip.ZipException: error in opening zip file
at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(
StandardClassLoader.java:1073)
at org.apache.catalina.loader.StandardClassLoader.<init>(StandardClassLo
ader.java:166)
at org.apache.catalina.startup.Bootstrap.createSharedLoader(Bootstrap.ja
va:324)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:122)