diff --git a/lib/thor/task.rb b/lib/thor/task.rb
index e24b3d27a..c0d6b5333 100644
--- a/lib/thor/task.rb
+++ b/lib/thor/task.rb
@@ -87,7 +87,7 @@ def local_method?(instance, name)
     end
 
     def sans_backtrace(backtrace, caller) #:nodoc:
-      saned  = backtrace.reject { |frame| frame =~ FILE_REGEXP }
+      saned  = backtrace.reject { |frame| frame =~ FILE_REGEXP || (frame =~ /\.java:/ && RUBY_PLATFORM =~ /java/) }
       saned -= caller
     end