Question

在我的WAS 6.1上，我在EAR中部署了一个EJb，EJb使用了log4j。尝试通过远程客户端调用EJb时出现此错误：

Caused by: java.lang.NoClassDefFoundError: org.apache.log4j.Priority
    at java.lang.J9VMInternals.verifyImpl(Native Method)
    at java.lang.J9VMInternals.verify(J9VMInternals.java:69)
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:131)
    at com.bmo.olbb.prs.integration.service.util.PRSUtil.<clinit>(PRSUtil.java:13)
    at java.lang.J9VMInternals.initializeImpl(Native Method)
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:196)
    ... 10 more
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Priority

在installedapps directroy中，在EAR文件夹中，我有EJB jar和log4j-1.2.15.jar。那我为什么要这个呢？问题是它如何同时成为ClassNotFoundException和NoClassDefFoundError？

Answer 1

您是否将log4j jar添加到EJB jar的meta-inf/Manifest.mf文件中？

Manifest-Version: 1.0
Class-Path: log4j-1.2.15.jar

EJB无法在类路径中找到log 4j

1 个答案: