Is anybody using Log4j 1.2.7 in Websphere 3.5?
			

			

			I installed the log4j JAR file and a copy of
			

			log4j.xml
			

			

			The problem is that Log4j is having trouble loading log4j.dtd
			

			

			This is surprising because log4j.dtd is contained inside the log4j JAR file. I have not modified the DTD or the JAR.
			

			

			Log4j attempts to load a file called log4j.dtd using the getResource() method in java.lang.Class
			

			

			The getResource() method is always returning null.
			

			

			I searched IBM's online support and there appears to be a bug related to getResource()
			

			

			---
			

			

			PQ53045: JARFILECLASSPROVIDER DOES NOT IMPLEMENT GETRESOURCE
			

			

			Abstract
			

			

			JARFILECLASSPROVIDER DOES NOT IMPLEMENT GETRESOURCE
			

			

			Error description
			

			JarFileClassProvider does not implement getResource
			

			

			

			Problem summary
			

			****************************************************************
			

			* USERS AFFECTED: All WebSphere Application Server users of *
			

			* getResource *
			

			****************************************************************
			

			* PROBLEM DESCRIPTION: Users of getResource were getting a *
			

			* null value returned. *
			

			****************************************************************
			

			* RECOMMENDATION: *
			

			****************************************************************
			

			The JarFileClassProvider was missing code such that users of
			

			getResource were getting a null returned.
			

			

			Problem conclusion
			

			This problem was corrected by a change to:
			

			com/ibm/servlet/classloader/JarFileClassProvider.java
			

			The defect number is 112372
			

			

			Temporary fix
			

			pq53045.jar
			

			

			http://www.ibm.com/