I hit a case where the Perforce "quick clean" option does not remove all of my class files.

This leaves a class file in the /classes output directory, and when rebuilt, blocks the anonymous (MyClass$Anon.class) files from being generated, breaking the build.

I do not see any error messages that indicate the root cause of this issue.

This issues took me hours to track down and verify. If quick-clean had aborted the build when it fails, this would have saved a lot of headache.

Here is failing directory before the clean:

d---- 4/2/2013 3:52 PM firstperson
d---- 4/2/2013 3:52 PM orbit
a-- 4/2/2013 3:52 PM 16553 BasicView.class
a-- 4/2/2013 3:52 PM 4859 BasicViewPropertyLimits.class
a-- 4/2/2013 3:52 PM 2793 ViewElevationAnimator.class
a-- 4/2/2013 3:52 PM 470 ViewModel.class
a-- 4/2/2013 3:52 PM 1237 ViewPropertyAccessor$ElevationAccessor.class
a-- 4/2/2013 3:52 PM 913 ViewPropertyAccessor$EyePositionAccessor.class
a-- 4/2/2013 3:52 PM 876 ViewPropertyAccessor$HeadingAccessor.class
a-- 4/2/2013 3:52 PM 868 ViewPropertyAccessor$PitchAccessor.class
a-- 4/2/2013 3:52 PM 1422 ViewPropertyAccessor.class
a-- 4/2/2013 3:52 PM 826 ViewPropertyLimits.class
a-- 4/2/2013 3:52 PM 1366 ViewUtil$ViewState.class
a-- 4/2/2013 3:52 PM 11575 ViewUtil.class

After the clean I get:

d---- 4/2/2013 4:43 PM firstperson
d---- 4/2/2013 4:43 PM orbit
a-- 4/2/2013 3:52 PM 1422 ViewPropertyAccessor.class

As far as I can tell, there is no reason why this file should not have been removed.