J2ee.jar causes problems with commons-logging.jar

Hi All -
(JDK 1.5.0_03, commons-logging 1.0.4, latest j2ee.jar, Eclipse 3.1.0 RC3 )
I am developing some components that are to be used within j2ee containers and in standalone mode as well. When I run the software under Tomcat, it works correctly (Tomcat is not using the j2ee.jar that comes with Sun's App server obviously), but when I develop with the j2ee.jar file that comes with Sun's App server, I can't use commons-logging. For example, the code supplied below (a class with only this line in the main method, not using any j2ee features) will fail JUST by having j2ee.jar in my path, but if I take it out of the path, it works fine. I am also on the commons-logging mail list and no one there has been able to solve this issue for me. Again, if I deploy my application to Tomcat, I don't have this problem.
The isolated line that is giving me the issue (and will give the issue even in a non j2ee application that just has this one line) is this:
log= LogFactory.getLog(CommonsLoggingTest.class);
When I run this without j2ee.jar in the path, it works fine. When I run it with j2ee.jar in the path, I get this:
Exception in thread "main" 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 com.redhawk.testing.CommonsLoggingTest.doTest(CommonsLoggingTest.java:27)
     at com.redhawk.testing.CommonsLoggingTest.main(CommonsLoggingTest.java:45)
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)
     ... 5 more
Caused by: java.lang.NullPointerException
     at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
     ... 6 more
Anyone have any ideas? Its really annoying to have to take this jar file out of my path every time I want to run a test. I could just start developing against other implementations of the j2ee classes I need (for example, Tomcat's jar files do not give this error) but for various reasons that is also undesirable.
Thanks!
Jason

This problem does not arise with commons-logging 1.0.3.
Any idea what is different in 1.0.4 that would introduce problems when Sun's j2ee.jar is in the path?

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J2ee.jar causes problems with commons-logging.jar

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