cffi doesn't load on ABCl 1.5 and 1.4 (but works on 1.3 and odler)

1.5 fails with NullPointerException
1.4 with org.armedbear.lisp.Go

Best regards,
- Anton


(ql:quickload :cffi)


Java exception 'java.lang.NullPointerException'.
   [Condition of type JAVA-EXCEPTION]

Restarts:
 0: [ABORT] Abort thread.

Backtrace:
  0: (#<FUNCTION {9B7F44}> #<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}>)
  1: (APPLY #<FUNCTION {9B7F44}> (#<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}>))
  2: (SYSTEM::RUN-HOOK SYSTEM::*INVOKE-DEBUGGER-HOOK* #<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}$
  3: (INVOKE-DEBUGGER #<JAVA-EXCEPTION {4A3C4C}>)
  4: org.armedbear.lisp.Lisp.error(Lisp.java:382)
  5: org.armedbear.lisp.Java.jcall(Java.java:911)
  6: org.armedbear.lisp.Java$pf_jcall.execute(Java.java:755)
  7: org.armedbear.lisp.Primitive.execute(Primitive.java:123)
  8: (JCALL "toString" NIL)
  9: (SYSTEM::TO-FILE #S(SYSTEM::SYSTEM-STREAM) NIL :APPEND NIL)
 10: (#<FUNCTION {12471FB}>)
 11: (THREADS::THREAD-FUNCTION-WRAPPER #<FUNCTION {12471FB}>)