It's got something to do with two occurances of the object "Action" in the
attached test vis:

cagney@nettle$ gcj -d . -I . -C one/ExitNotificationObserver.java
one/AddTaskObserverAction.java one/TaskAction.java
one/ExitNotificationObserver.java: In class 'one.ExitNotificationObserver':
one/ExitNotificationObserver.java: In constructor '()':
one/ExitNotificationObserver.java:18: error: Can't find method
‘dontSaveObject()’ in type ‘one.TaskAction’.
        myAction.dontSaveObject();
                   ^
1 error
cagney@nettle$ gcj -d . -I . -C  one/TaskAction.java
one/ExitNotificationObserver.java one/AddTaskObserverAction.java
cagney@nettle$

attachment follows


-- 
           Summary: gcj fails dependant on compiler order
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: cagney at redhat dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27985