[main] FATAL ERR - Message 0
 [main] ERROR ERR - Message 1
 [main] FATAL INF - Message 2
 [main] ERROR INF - Message 3
 [main] WARN INF - Message 4
 [main] INFO INF - Message 5
 [main] FATAL INF.UNDEF - Message 6
 [main] ERROR INF.UNDEF - Message 7
 [main] WARN INF.UNDEF - Message 8
 [main] INFO INF.UNDEF - Message 9
 [main] FATAL INF.ERR - Message 10
 [main] ERROR INF.ERR - Message 11
 [main] FATAL INF.ERR.UNDEF - Message 12
 [main] ERROR INF.ERR.UNDEF - Message 13
 [main] FATAL DEB - Message 14
 [main] ERROR DEB - Message 15
 [main] WARN DEB - Message 16
 [main] INFO DEB - Message 17
 [main] DEBUG DEB - Message 18
 [main] FATAL UNDEF - Message 19
 [main] ERROR UNDEF - Message 20
 [main] WARN UNDEF - Message 21
 [main] INFO UNDEF - Message 22
 [main] DEBUG UNDEF - Message 23
java.lang.Exception: Just testing.
	at org.apache.log4j.MinimumTest.common(X)
	at org.apache.log4j.MinimumTest.ttcc(X)
	at java.lang.reflect.Method.invoke(X)
	at junit.framework.TestCase.runTest(X)
	at junit.framework.TestCase.runBare(X)
	at junit.framework.TestResult$1.protect(X)
	at junit.framework.TestResult.runProtected(X)
	at junit.framework.TestResult.run(X)
	at junit.framework.TestCase.run(X)
	at junit.framework.TestSuite.runTest(X)
	at junit.framework.TestSuite.run(X)
 [main] INFO INF - Messages should bear numbers 0 through 23.