As shown in the attached project, we are logging using Logback classic through a wrapper class (LogHelper), with formatting specified by the %caller format specifier. Instead of showing the desired actual caller of the LogHelper.debug() method, the output shows as the caller, the caller of the caller of the logHelper.

I'm expecting:
2011-11-06 18:49:59,650 DEBUG [main] Caller+0 at org.javactivity.A.<init>(A.java:8)

• Constructor of A
  2011-11-06 18:49:59,654 DEBUG [main] Caller+0 at org.javactivity.B.<init>(B.java:7)
• Constructor of B

Instead I get:
2011-11-06 18:49:59,650 DEBUG [main] ?#?:?

• Constructor of A
  2011-11-06 18:49:59,654 DEBUG [main] Caller+0 at org.javactivity.A.<init>(A.java:9)
• Constructor of B