Lomboz 3.0的报错，请教达人

[jedi_knight]

环境如下：eclipse 3.0, Lomboz 3.0 , Tomcat 5.0.28

启动jsp报错如下，但是jsp能运行，请问这是怎么回事？

Bootstrap: Class loader creation threw exception
java.lang.ExceptionInInitializerError
at org.apache.catalina.startup.ClassLoaderFactory.<clinit>(ClassLoaderFactory.java:63)
at org.apache.catalina.startup.Bootstrap.initClassLoaders(Bootstrap.java:103)
at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:196)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:402)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException) (Caused by org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException))
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
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.tomcat.util.compat.JdkCompat.<clinit>(JdkCompat.java:55)
... 4 more
Caused by: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 8 more
Caused by: java.lang.NullPointerException
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
... 9 more

[klbt]

先杀毒，重新安装试试。

[shangqiao]

不知道,这种异常很少遇到

[boby1863]

这个是版本问题,建议用Tomcat 5.0.16

[jedi_knight]

那位大侠提供一下Tomcat 5.0.16的下载地址，现在只能下载到5.0.28了

[jedi_knight]

我下载了Tomcat 5.0.16，建了一个工程，
然后在src下加一个包demo，创建class A，
然后在index.jsp里import demo.A, 调用A，编译都成功.但是在web访问的时候报错

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 9 in the jsp file: /index.jsp

Generated servlet error:
[javac] Compiling 1 source file

D:\eclipse\workspace\JSP\j2src\org\apache\jsp\index_jsp.java:6: package demo does not exist
import demo.A;
^
D:\eclipse\workspace\JSP\j2src\org\apache\jsp\index_jsp.java:43: cannot resolve symbol
symbol : class A
location: class org.apache.jsp.index_jsp
A a1=new A();
^
An error occurred at line: 9 in the jsp file: /index.jsp

Generated servlet error:
D:\eclipse\workspace\JSP\j2src\org\apache\jsp\index_jsp.java:43: cannot resolve symbol
symbol : class A
location: class org.apache.jsp.index_jsp
A a1=new A();
^
3 errors


demo.A在bin目录下都生成class了，怎么会找不到这个package的呢？请教达人，这个怎么解决，谢谢

[drugon]

http://community.csdn.net/Expert/topic/3561/3561461.xml?temp=.1926844
这是我的配置文件 ，你打开看一下应该可以的。我的都配置好了。
应该是你的Classpath以及各个Home变量没有设置好。

[snowofjuly]

确实是tomcat版本的问题
我换到5.0.25及其以下就没有问题了
我是在校园网下的，官方网站已经没有了
你的邮箱？。。。han

不过tomcat应该过几天会发出公告解释的

[PoemCode]

5.5.4

[擦枪走火]

我也刚刚碰到这个问题, 已经解决了,解决办法如下:

把Eclipse_home\plugins\com.objectlearn.jdt.j2ee_3.0.1\servers 下面对应的server文件打开，比如我安装的TOMCAT是4.1.30版的，那么就把tomcat410.server这个文件打开，把里面的-Djava.endorsed.dirs="${serverRootDirectory}/bin;${serverRootDirectory}/common/endorsed"
改成
-Djava.endorsed.dirs="${serverRootDirectory}/common/endorsed"
一共有两处，都要修改，修改完之后保存，退出，重新启动Eclipse

[以梦为马]

友情up。

[loucai]

up